---
_id: '8831'
abstract:
- lang: eng
  text: Holes in planar Ge have high mobilities, strong spin-orbit interaction and
    electrically tunable g-factors, and are therefore emerging as a promising candidate
    for hybrid superconductorsemiconductor devices. This is further motivated by the
    observation of supercurrent transport in planar Ge Josephson Field effect transistors
    (JoFETs). A key challenge towards hybrid germanium quantum technology is the design
    of high quality interfaces and superconducting contacts that are robust against
    magnetic fields. By combining the assets of Al, which has a long superconducting
    coherence, and Nb, which has a significant superconducting gap, we form low-disordered
    JoFETs with large ICRN products that are capable of withstanding high magnetic
    fields. We furthermore demonstrate the ability of phase-biasing individual JoFETs
    opening up an avenue to explore topological superconductivity in planar Ge. The
    persistence of superconductivity in the reported hybrid devices beyond 1.8 T paves
    the way towards integrating spin qubits and proximity-induced superconductivity
    on the same chip.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: "This research and related results were made possible with the support
  of the NOMIS Foundation. This research was supported by the Scientific Service Units
  of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication
  facility, the European Union’s Horizon 2020 research and innovation program under
  the Marie Sklodowska-Curie grant agreement #844511 and the Grant Agreement #862046.
  ICN2 acknowledge funding from Generalitat de Catalunya 2017 SGR 327. ICN2 is supported
  by the Severo Ochoa\r\nprogram from Spanish MINECO (Grant No. SEV2017-0706) and
  is funded by the CERCA Programme / Generalitat de Catalunya. Part of the present
  work has been performed in the framework of Universitat Aut`onoma de Barcelona Materials
  Science PhD program. The HAADF-STEM microscopy was conducted in the Laboratorio
  de Microscopias Avanzadas at Instituto de Nanociencia de Aragon-Universidad de Zaragoza.
  Authors acknowledge the LMA-INA for offering access to their instruments and expertise.
  We acknowledge support from CSIC Research Platform on Quantum Technologies PTI-001.
  This project has received funding from\r\nthe European Union’s Horizon 2020 research
  and innovation programme under grant agreement No 823717 – ESTEEM3. M.B. acknowledges
  support from SUR Generalitat de Catalunya and the EU Social Fund; project ref. 2020
  FI 00103. GS and MV acknowledge support through a projectruimte grant associated
  with the Netherlands Organization of Scientific Research (NWO)."
article_number: '2012.00322'
article_processing_charge: No
arxiv: 1
author:
- first_name: Kushagra
  full_name: Aggarwal, Kushagra
  id: b22ab905-3539-11eb-84c3-fc159dcd79cb
  last_name: Aggarwal
  orcid: 0000-0001-9985-9293
- first_name: Andrea C
  full_name: Hofmann, Andrea C
  id: 340F461A-F248-11E8-B48F-1D18A9856A87
  last_name: Hofmann
- first_name: Daniel
  full_name: Jirovec, Daniel
  id: 4C473F58-F248-11E8-B48F-1D18A9856A87
  last_name: Jirovec
  orcid: 0000-0002-7197-4801
- first_name: Ivan
  full_name: Prieto Gonzalez, Ivan
  id: 2A307FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Prieto Gonzalez
  orcid: 0000-0002-7370-5357
- first_name: Amir
  full_name: Sammak, Amir
  last_name: Sammak
- first_name: Marc
  full_name: Botifoll, Marc
  last_name: Botifoll
- first_name: Sara
  full_name: Marti-Sanchez, Sara
  last_name: Marti-Sanchez
- first_name: Menno
  full_name: Veldhorst, Menno
  last_name: Veldhorst
- first_name: Jordi
  full_name: Arbiol, Jordi
  last_name: Arbiol
- first_name: Giordano
  full_name: Scappucci, Giordano
  last_name: Scappucci
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Aggarwal K, Hofmann AC, Jirovec D, et al. Enhancement of proximity induced
    superconductivity in planar Germanium. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2012.00322">10.48550/arXiv.2012.00322</a>
  apa: Aggarwal, K., Hofmann, A. C., Jirovec, D., Prieto Gonzalez, I., Sammak, A.,
    Botifoll, M., … Katsaros, G. (n.d.). Enhancement of proximity induced superconductivity
    in planar Germanium. <i>arXiv</i>. <a href="https://doi.org/10.48550/arXiv.2012.00322">https://doi.org/10.48550/arXiv.2012.00322</a>
  chicago: Aggarwal, Kushagra, Andrea C Hofmann, Daniel Jirovec, Ivan Prieto Gonzalez,
    Amir Sammak, Marc Botifoll, Sara Marti-Sanchez, et al. “Enhancement of Proximity
    Induced Superconductivity in Planar Germanium.” <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.2012.00322">https://doi.org/10.48550/arXiv.2012.00322</a>.
  ieee: K. Aggarwal <i>et al.</i>, “Enhancement of proximity induced superconductivity
    in planar Germanium,” <i>arXiv</i>. .
  ista: Aggarwal K, Hofmann AC, Jirovec D, Prieto Gonzalez I, Sammak A, Botifoll M,
    Marti-Sanchez S, Veldhorst M, Arbiol J, Scappucci G, Katsaros G. Enhancement of
    proximity induced superconductivity in planar Germanium. arXiv, 2012.00322.
  mla: Aggarwal, Kushagra, et al. “Enhancement of Proximity Induced Superconductivity
    in Planar Germanium.” <i>ArXiv</i>, 2012.00322, doi:<a href="https://doi.org/10.48550/arXiv.2012.00322">10.48550/arXiv.2012.00322</a>.
  short: K. Aggarwal, A.C. Hofmann, D. Jirovec, I. Prieto Gonzalez, A. Sammak, M.
    Botifoll, S. Marti-Sanchez, M. Veldhorst, J. Arbiol, G. Scappucci, G. Katsaros,
    ArXiv (n.d.).
corr_author: '1'
date_created: 2020-12-02T10:42:53Z
date_published: 2020-12-02T00:00:00Z
date_updated: 2026-07-23T22:30:35Z
day: '02'
ddc:
- '530'
department:
- _id: GeKa
doi: 10.48550/arXiv.2012.00322
ec_funded: 1
external_id:
  arxiv:
  - '2012.00322'
file:
- access_level: open_access
  checksum: 22a612e206232fa94b138b2c2f957582
  content_type: application/pdf
  creator: gkatsaro
  date_created: 2020-12-02T10:42:31Z
  date_updated: 2020-12-02T10:42:31Z
  file_id: '8832'
  file_name: Superconducting_2D_Ge.pdf
  file_size: 1697939
  relation: main_file
file_date_updated: 2020-12-02T10:42:31Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
project:
- _id: 262116AA-B435-11E9-9278-68D0E5697425
  name: Hybrid Semiconductor - Superconductor Quantum Devices
- _id: 26A151DA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '844511'
  name: Majorana bound states in Ge/SiGe heterostructures
- _id: 237E5020-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862046'
  name: TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '10559'
    relation: later_version
    status: public
  - id: '8834'
    relation: research_data
    status: public
  - id: '10058'
    relation: dissertation_contains
    status: public
status: public
title: Enhancement of proximity induced superconductivity in planar Germanium
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '8986'
abstract:
- lang: eng
  text: 'Flowering plants display the highest diversity among plant species and have
    notably shaped terrestrial landscapes. Nonetheless, the evolutionary origin of
    their unprecedented morphological complexity remains largely an enigma. Here,
    we show that the coevolution of cis-regulatory and coding regions of PIN-FORMED
    (PIN) auxin transporters confined their expression to certain cell types and directed
    their subcellular localization to particular cell sides, which together enabled
    dynamic auxin gradients across tissues critical to the complex architecture of
    flowering plants. Extensive intraspecies and interspecies genetic complementation
    experiments with PINs from green alga up to flowering plant lineages showed that
    PIN genes underwent three subsequent, critical evolutionary innovations and thus
    acquired a triple function to regulate the development of three essential components
    of the flowering plant Arabidopsis: shoot/root, inflorescence, and floral organ.
    Our work highlights the critical role of functional innovations within the PIN
    gene family as essential prerequisites for the origin of flowering plants.'
acknowledgement: 'We thank C.Löhne (Botanic Gardens, University of Bonn) for providing
  us with A. trichopoda. We would like to thank T.Han, A.Mally (IST, Austria), and
  C.Hartinger (University of Oxford) for constructive comment and careful reading.
  Funding: The research leading to these results has received funding from the European
  Union’s Horizon 2020 Research and Innovation Programme (ERC grant agreement number
  742985), Austrian Science Fund (FWF, grant number I 3630-B25), DOC Fellowship of
  the Austrian Academy of Sciences, and IST Fellow program. '
article_number: eabc8895
article_processing_charge: No
article_type: original
author:
- first_name: Yuzhou
  full_name: Zhang, Yuzhou
  id: 3B6137F2-F248-11E8-B48F-1D18A9856A87
  last_name: Zhang
  orcid: 0000-0003-2627-6956
- first_name: Lesia
  full_name: Rodriguez Solovey, Lesia
  id: 3922B506-F248-11E8-B48F-1D18A9856A87
  last_name: Rodriguez Solovey
  orcid: 0000-0002-7244-7237
- first_name: Lanxin
  full_name: Li, Lanxin
  id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0002-5607-272X
- first_name: Xixi
  full_name: Zhang, Xixi
  id: 61A66458-47E9-11EA-85BA-8AEAAF14E49A
  last_name: Zhang
  orcid: 0000-0001-7048-4627
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Zhang Y, Rodriguez Solovey L, Li L, Zhang X, Friml J. Functional innovations
    of PIN auxin transporters mark crucial evolutionary transitions during rise of
    flowering plants. <i>Science Advances</i>. 2020;6(50). doi:<a href="https://doi.org/10.1126/sciadv.abc8895">10.1126/sciadv.abc8895</a>
  apa: Zhang, Y., Rodriguez Solovey, L., Li, L., Zhang, X., &#38; Friml, J. (2020).
    Functional innovations of PIN auxin transporters mark crucial evolutionary transitions
    during rise of flowering plants. <i>Science Advances</i>. AAAS. <a href="https://doi.org/10.1126/sciadv.abc8895">https://doi.org/10.1126/sciadv.abc8895</a>
  chicago: Zhang, Yuzhou, Lesia Rodriguez Solovey, Lanxin Li, Xixi Zhang, and Jiří
    Friml. “Functional Innovations of PIN Auxin Transporters Mark Crucial Evolutionary
    Transitions during Rise of Flowering Plants.” <i>Science Advances</i>. AAAS, 2020.
    <a href="https://doi.org/10.1126/sciadv.abc8895">https://doi.org/10.1126/sciadv.abc8895</a>.
  ieee: Y. Zhang, L. Rodriguez Solovey, L. Li, X. Zhang, and J. Friml, “Functional
    innovations of PIN auxin transporters mark crucial evolutionary transitions during
    rise of flowering plants,” <i>Science Advances</i>, vol. 6, no. 50. AAAS, 2020.
  ista: Zhang Y, Rodriguez Solovey L, Li L, Zhang X, Friml J. 2020. Functional innovations
    of PIN auxin transporters mark crucial evolutionary transitions during rise of
    flowering plants. Science Advances. 6(50), eabc8895.
  mla: Zhang, Yuzhou, et al. “Functional Innovations of PIN Auxin Transporters Mark
    Crucial Evolutionary Transitions during Rise of Flowering Plants.” <i>Science
    Advances</i>, vol. 6, no. 50, eabc8895, AAAS, 2020, doi:<a href="https://doi.org/10.1126/sciadv.abc8895">10.1126/sciadv.abc8895</a>.
  short: Y. Zhang, L. Rodriguez Solovey, L. Li, X. Zhang, J. Friml, Science Advances
    6 (2020).
corr_author: '1'
date_created: 2021-01-03T23:01:23Z
date_published: 2020-12-11T00:00:00Z
date_updated: 2026-07-23T22:30:37Z
day: '11'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1126/sciadv.abc8895
ec_funded: 1
external_id:
  isi:
  - '000599903600014'
  pmid:
  - '33310852'
file:
- access_level: open_access
  checksum: 5ac2500b191c08ef6dab5327f40ff663
  content_type: application/pdf
  creator: dernst
  date_created: 2021-01-07T12:44:33Z
  date_updated: 2021-01-07T12:44:33Z
  file_id: '8994'
  file_name: 2020_ScienceAdvances_Zhang.pdf
  file_size: 10578145
  relation: main_file
  success: 1
file_date_updated: 2021-01-07T12:44:33Z
has_accepted_license: '1'
intvolume: '         6'
isi: 1
issue: '50'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '742985'
  name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03630
  name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
  grant_number: '25351'
  name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
    Rapid Growth Inhibition in Arabidopsis Root'
publication: Science Advances
publication_identifier:
  eissn:
  - 2375-2548
publication_status: published
publisher: AAAS
quality_controlled: '1'
related_material:
  record:
  - id: '10083'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Functional innovations of PIN auxin transporters mark crucial evolutionary
  transitions during rise of flowering plants
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
  short: CC BY-NC (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 6
year: '2020'
...
---
_id: '8283'
abstract:
- lang: eng
  text: 'Drought and salt stress are the main environmental cues affecting the survival,
    development, distribution, and yield of crops worldwide. MYB transcription factors
    play a crucial role in plants’ biological processes, but the function of pineapple
    MYB genes is still obscure. In this study, one of the pineapple MYB transcription
    factors, AcoMYB4, was isolated and characterized. The results showed that AcoMYB4
    is localized in the cell nucleus, and its expression is induced by low temperature,
    drought, salt stress, and hormonal stimulation, especially by abscisic acid (ABA).
    Overexpression of AcoMYB4 in rice and Arabidopsis enhanced plant sensitivity to
    osmotic stress; it led to an increase in the number stomata on leaf surfaces and
    lower germination rate under salt and drought stress. Furthermore, in AcoMYB4
    OE lines, the membrane oxidation index, free proline, and soluble sugar contents
    were decreased. In contrast, electrolyte leakage and malondialdehyde (MDA) content
    increased significantly due to membrane injury, indicating higher sensitivity
    to drought and salinity stresses. Besides the above, both the expression level
    and activities of several antioxidant enzymes were decreased, indicating lower
    antioxidant activity in AcoMYB4 transgenic plants. Moreover, under osmotic stress,
    overexpression of AcoMYB4 inhibited ABA biosynthesis through a decrease in the
    transcription of genes responsible for ABA synthesis (ABA1 and ABA2) and ABA signal
    transduction factor ABI5. These results suggest that AcoMYB4 negatively regulates
    osmotic stress by attenuating cellular ABA biosynthesis and signal transduction
    pathways. '
acknowledgement: 'We would like to thank the reviewers for their helpful comments
  on the original manuscript. '
article_number: '5272'
article_processing_charge: No
article_type: original
author:
- first_name: Huihuang
  full_name: Chen, Huihuang
  last_name: Chen
- first_name: Linyi
  full_name: Lai, Linyi
  last_name: Lai
- first_name: Lanxin
  full_name: Li, Lanxin
  id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0002-5607-272X
- first_name: Liping
  full_name: Liu, Liping
  last_name: Liu
- first_name: Bello Hassan
  full_name: Jakada, Bello Hassan
  last_name: Jakada
- first_name: Youmei
  full_name: Huang, Youmei
  last_name: Huang
- first_name: Qing
  full_name: He, Qing
  last_name: He
- first_name: Mengnan
  full_name: Chai, Mengnan
  last_name: Chai
- first_name: Xiaoping
  full_name: Niu, Xiaoping
  last_name: Niu
- first_name: Yuan
  full_name: Qin, Yuan
  last_name: Qin
citation:
  ama: Chen H, Lai L, Li L, et al. AcoMYB4, an Ananas comosus L. MYB transcription
    factor, functions in osmotic stress through negative regulation of ABA signaling.
    <i>International Journal of Molecular Sciences</i>. 2020;21(16). doi:<a href="https://doi.org/10.3390/ijms21165727">10.3390/ijms21165727</a>
  apa: Chen, H., Lai, L., Li, L., Liu, L., Jakada, B. H., Huang, Y., … Qin, Y. (2020).
    AcoMYB4, an Ananas comosus L. MYB transcription factor, functions in osmotic stress
    through negative regulation of ABA signaling. <i>International Journal of Molecular
    Sciences</i>. MDPI. <a href="https://doi.org/10.3390/ijms21165727">https://doi.org/10.3390/ijms21165727</a>
  chicago: Chen, Huihuang, Linyi Lai, Lanxin Li, Liping Liu, Bello Hassan Jakada,
    Youmei Huang, Qing He, Mengnan Chai, Xiaoping Niu, and Yuan Qin. “AcoMYB4, an
    Ananas Comosus L. MYB Transcription Factor, Functions in Osmotic Stress through
    Negative Regulation of ABA Signaling.” <i>International Journal of Molecular Sciences</i>.
    MDPI, 2020. <a href="https://doi.org/10.3390/ijms21165727">https://doi.org/10.3390/ijms21165727</a>.
  ieee: H. Chen <i>et al.</i>, “AcoMYB4, an Ananas comosus L. MYB transcription factor,
    functions in osmotic stress through negative regulation of ABA signaling,” <i>International
    Journal of Molecular Sciences</i>, vol. 21, no. 16. MDPI, 2020.
  ista: Chen H, Lai L, Li L, Liu L, Jakada BH, Huang Y, He Q, Chai M, Niu X, Qin Y.
    2020. AcoMYB4, an Ananas comosus L. MYB transcription factor, functions in osmotic
    stress through negative regulation of ABA signaling. International Journal of
    Molecular Sciences. 21(16), 5272.
  mla: Chen, Huihuang, et al. “AcoMYB4, an Ananas Comosus L. MYB Transcription Factor,
    Functions in Osmotic Stress through Negative Regulation of ABA Signaling.” <i>International
    Journal of Molecular Sciences</i>, vol. 21, no. 16, 5272, MDPI, 2020, doi:<a href="https://doi.org/10.3390/ijms21165727">10.3390/ijms21165727</a>.
  short: H. Chen, L. Lai, L. Li, L. Liu, B.H. Jakada, Y. Huang, Q. He, M. Chai, X.
    Niu, Y. Qin, International Journal of Molecular Sciences 21 (2020).
date_created: 2020-08-24T06:24:03Z
date_published: 2020-08-10T00:00:00Z
date_updated: 2026-07-23T22:30:37Z
day: '10'
ddc:
- '570'
department:
- _id: JiFr
doi: 10.3390/ijms21165727
external_id:
  isi:
  - '000565090300001'
  pmid:
  - '32785037'
file:
- access_level: open_access
  checksum: 03b039244e6ae80580385fd9f577e2b2
  content_type: application/pdf
  creator: cziletti
  date_created: 2020-08-25T09:53:50Z
  date_updated: 2020-08-25T09:53:50Z
  file_id: '8292'
  file_name: 2020_IntMolecSciences_Chen.pdf
  file_size: 5718755
  relation: main_file
  success: 1
file_date_updated: 2020-08-25T09:53:50Z
has_accepted_license: '1'
intvolume: '        21'
isi: 1
issue: '16'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
publication: International Journal of Molecular Sciences
publication_identifier:
  eissn:
  - 1422-0067
  issn:
  - 1661-6596
publication_status: published
publisher: MDPI
quality_controlled: '1'
related_material:
  record:
  - id: '10083'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: AcoMYB4, an Ananas comosus L. MYB transcription factor, functions in osmotic
  stress through negative regulation of ABA signaling
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2020'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '9160'
abstract:
- lang: eng
  text: Auxin is a key hormonal regulator, that governs plant growth and development
    in concert with other hormonal pathways. The unique feature of auxin is its polar,
    cell-to-cell transport that leads to the formation of local auxin maxima and gradients,
    which coordinate initiation and patterning of plant organs. The molecular machinery
    mediating polar auxin transport is one of the important points of interaction
    with other hormones. Multiple hormonal pathways converge at the regulation of
    auxin transport and form a regulatory network that integrates various developmental
    and environmental inputs to steer plant development. In this review, we discuss
    recent advances in understanding the mechanisms that underlie regulation of polar
    auxin transport by multiple hormonal pathways. Specifically, we focus on the post-translational
    mechanisms that contribute to fine-tuning of the abundance and polarity of auxin
    transporters at the plasma membrane and thereby enable rapid modification of the
    auxin flow to coordinate plant growth and development.
acknowledgement: H.S. is the recipient of a DOC Fellowship of the Austrian Academy
  of Sciences at the Institute of Science and Technology, Austria. J.C.M. is the recipient
  of an EMBO Long-Term Fellowship (ALTF number 710-2016). We would like to thank Jiri
  Friml and Carina Baskett for critical reading of the manuscript and Shutang Tan
  and Maciek Adamowski for helpful discussions. No conflict of interest declared.
article_number: '100048'
article_processing_charge: No
article_type: original
author:
- first_name: Hana
  full_name: Semeradova, Hana
  id: 42FE702E-F248-11E8-B48F-1D18A9856A87
  last_name: Semeradova
- first_name: Juan C
  full_name: Montesinos López, Juan C
  id: 310A8E3E-F248-11E8-B48F-1D18A9856A87
  last_name: Montesinos López
  orcid: 0000-0001-9179-6099
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
citation:
  ama: 'Semerádová H, Montesinos López JC, Benková E. All roads lead to auxin: Post-translational
    regulation of auxin transport by multiple hormonal pathways. <i>Plant Communications</i>.
    2020;1(3). doi:<a href="https://doi.org/10.1016/j.xplc.2020.100048">10.1016/j.xplc.2020.100048</a>'
  apa: 'Semerádová, H., Montesinos López, J. C., &#38; Benková, E. (2020). All roads
    lead to auxin: Post-translational regulation of auxin transport by multiple hormonal
    pathways. <i>Plant Communications</i>. Elsevier. <a href="https://doi.org/10.1016/j.xplc.2020.100048">https://doi.org/10.1016/j.xplc.2020.100048</a>'
  chicago: 'Semerádová, Hana, Juan C Montesinos López, and Eva Benková. “All Roads
    Lead to Auxin: Post-Translational Regulation of Auxin Transport by Multiple Hormonal
    Pathways.” <i>Plant Communications</i>. Elsevier, 2020. <a href="https://doi.org/10.1016/j.xplc.2020.100048">https://doi.org/10.1016/j.xplc.2020.100048</a>.'
  ieee: 'H. Semerádová, J. C. Montesinos López, and E. Benková, “All roads lead to
    auxin: Post-translational regulation of auxin transport by multiple hormonal pathways,”
    <i>Plant Communications</i>, vol. 1, no. 3. Elsevier, 2020.'
  ista: 'Semerádová H, Montesinos López JC, Benková E. 2020. All roads lead to auxin:
    Post-translational regulation of auxin transport by multiple hormonal pathways.
    Plant Communications. 1(3), 100048.'
  mla: 'Semerádová, Hana, et al. “All Roads Lead to Auxin: Post-Translational Regulation
    of Auxin Transport by Multiple Hormonal Pathways.” <i>Plant Communications</i>,
    vol. 1, no. 3, 100048, Elsevier, 2020, doi:<a href="https://doi.org/10.1016/j.xplc.2020.100048">10.1016/j.xplc.2020.100048</a>.'
  short: H. Semerádová, J.C. Montesinos López, E. Benková, Plant Communications 1
    (2020).
corr_author: '1'
date_created: 2021-02-18T10:18:43Z
date_published: 2020-05-11T00:00:00Z
date_updated: 2026-07-23T22:30:39Z
day: '11'
ddc:
- '580'
department:
- _id: EvBe
doi: 10.1016/j.xplc.2020.100048
external_id:
  isi:
  - '000654052800010'
  pmid:
  - '33367243'
file:
- access_level: open_access
  checksum: 785b266d82a94b007cf40dbbe7c4847e
  content_type: application/pdf
  creator: dernst
  date_created: 2021-02-18T10:23:59Z
  date_updated: 2021-02-18T10:23:59Z
  file_id: '9161'
  file_name: 2020_PlantComm_Semeradova.pdf
  file_size: 840289
  relation: main_file
  success: 1
file_date_updated: 2021-02-18T10:23:59Z
has_accepted_license: '1'
intvolume: '         1'
isi: 1
issue: '3'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261821BC-B435-11E9-9278-68D0E5697425
  grant_number: '24746'
  name: Molecular mechanisms of the cytokinin regulated endomembrane trafficking to
    coordinate plant organogenesis
- _id: 253E54C8-B435-11E9-9278-68D0E5697425
  grant_number: ALTF710-2016
  name: Molecular mechanism of auxindriven formative divisions delineating lateral
    root organogenesis in plants
publication: Plant Communications
publication_identifier:
  issn:
  - 2590-3462
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '10135'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: 'All roads lead to auxin: Post-translational regulation of auxin transport
  by multiple hormonal pathways'
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 1
year: '2020'
...
---
_id: '9198'
abstract:
- lang: eng
  text: "The optimization of multilayer neural networks typically leads to a solution\r\nwith
    zero training error, yet the landscape can exhibit spurious local minima\r\nand
    the minima can be disconnected. In this paper, we shed light on this\r\nphenomenon:
    we show that the combination of stochastic gradient descent (SGD)\r\nand over-parameterization
    makes the landscape of multilayer neural networks\r\napproximately connected and
    thus more favorable to optimization. More\r\nspecifically, we prove that SGD solutions
    are connected via a piecewise linear\r\npath, and the increase in loss along this
    path vanishes as the number of\r\nneurons grows large. This result is a consequence
    of the fact that the\r\nparameters found by SGD are increasingly dropout stable
    as the network becomes\r\nwider. We show that, if we remove part of the neurons
    (and suitably rescale the\r\nremaining ones), the change in loss is independent
    of the total number of\r\nneurons, and it depends only on how many neurons are
    left. Our results exhibit\r\na mild dependence on the input dimension: they are
    dimension-free for two-layer\r\nnetworks and depend linearly on the dimension
    for multilayer networks. We\r\nvalidate our theoretical findings with numerical
    experiments for different\r\narchitectures and classification tasks."
acknowledgement: M. Mondelli was partially supported by the 2019 LopezLoreta Prize.
  The authors thank Phan-Minh Nguyen for helpful discussions and the IST Distributed
  Algorithms and Systems Lab for providing computational resources.
article_processing_charge: No
arxiv: 1
author:
- first_name: Aleksandr
  full_name: Shevchenko, Aleksandr
  id: F2B06EC2-C99E-11E9-89F0-752EE6697425
  last_name: Shevchenko
- first_name: Marco
  full_name: Mondelli, Marco
  id: 27EB676C-8706-11E9-9510-7717E6697425
  last_name: Mondelli
  orcid: 0000-0002-3242-7020
citation:
  ama: 'Shevchenko A, Mondelli M. Landscape connectivity and dropout stability of
    SGD solutions for over-parameterized neural networks. In: <i>Proceedings of the
    37th International Conference on Machine Learning</i>. Vol 119. ML Research Press;
    2020:8773-8784.'
  apa: Shevchenko, A., &#38; Mondelli, M. (2020). Landscape connectivity and dropout
    stability of SGD solutions for over-parameterized neural networks. In <i>Proceedings
    of the 37th International Conference on Machine Learning</i> (Vol. 119, pp. 8773–8784).
    ML Research Press.
  chicago: Shevchenko, Aleksandr, and Marco Mondelli. “Landscape Connectivity and
    Dropout Stability of SGD Solutions for Over-Parameterized Neural Networks.” In
    <i>Proceedings of the 37th International Conference on Machine Learning</i>, 119:8773–84.
    ML Research Press, 2020.
  ieee: A. Shevchenko and M. Mondelli, “Landscape connectivity and dropout stability
    of SGD solutions for over-parameterized neural networks,” in <i>Proceedings of
    the 37th International Conference on Machine Learning</i>, 2020, vol. 119, pp.
    8773–8784.
  ista: Shevchenko A, Mondelli M. 2020. Landscape connectivity and dropout stability
    of SGD solutions for over-parameterized neural networks. Proceedings of the 37th
    International Conference on Machine Learning. vol. 119, 8773–8784.
  mla: Shevchenko, Aleksandr, and Marco Mondelli. “Landscape Connectivity and Dropout
    Stability of SGD Solutions for Over-Parameterized Neural Networks.” <i>Proceedings
    of the 37th International Conference on Machine Learning</i>, vol. 119, ML Research
    Press, 2020, pp. 8773–84.
  short: A. Shevchenko, M. Mondelli, in:, Proceedings of the 37th International Conference
    on Machine Learning, ML Research Press, 2020, pp. 8773–8784.
date_created: 2021-02-25T09:36:22Z
date_published: 2020-07-13T00:00:00Z
date_updated: 2026-07-23T22:30:43Z
day: '13'
ddc:
- '000'
department:
- _id: MaMo
- _id: DaAl
external_id:
  arxiv:
  - '1912.10095'
file:
- access_level: open_access
  checksum: f042c8d4316bd87c6361aa76f1fbdbbe
  content_type: application/pdf
  creator: dernst
  date_created: 2021-03-02T15:38:14Z
  date_updated: 2021-03-02T15:38:14Z
  file_id: '9217'
  file_name: 2020_PMLR_Shevchenko.pdf
  file_size: 5336380
  relation: main_file
  success: 1
file_date_updated: 2021-03-02T15:38:14Z
has_accepted_license: '1'
intvolume: '       119'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 8773-8784
project:
- _id: 059876FA-7A3F-11EA-A408-12923DDC885E
  name: Prix Lopez-Loretta 2019 - Marco Mondelli
publication: Proceedings of the 37th International Conference on Machine Learning
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
related_material:
  record:
  - id: '17465'
    relation: dissertation_contains
    status: public
status: public
title: Landscape connectivity and dropout stability of SGD solutions for over-parameterized
  neural networks
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 119
year: '2020'
...
---
_id: '7889'
abstract:
- lang: eng
  text: Autoluminescent plants engineered to express a bacterial bioluminescence gene
    cluster in plastids have not been widely adopted because of low light output.
    We engineered tobacco plants with a fungal bioluminescence system that converts
    caffeic acid (present in all plants) into luciferin and report self-sustained
    luminescence that is visible to the naked eye. Our findings could underpin development
    of a suite of imaging tools for plants.
acknowledgement: "This study was designed, performed and funded by Planta LLC. We
  thank K. Wood for assisting in manuscript development. Planta acknowledges support
  from the Skolkovo Innovation Centre. We thank D. Bolotin and the Milaboratory (milaboratory.com)
  for access to computing and storage infrastructure. We thank S. Shakhov for providing\r\nphotography
  equipment. The Synthetic Biology Group is funded by the MRC London Institute of
  Medical Sciences (UKRI MC-A658-5QEA0, K.S.S.). K.S.S. is supported by an Imperial
  College Research Fellowship. Experiments were partially carried out using equipment
  provided by the Institute of Bioorganic Chemistry of the Russian Academy\r\nof Sciences
  Сore Facility (CKP IBCH; supported by the Russian Ministry of Education and Science
  Grant RFMEFI62117X0018). The F.A.K. lab is supported by ERC grant agreement 771209—CharFL.
  This project received funding from the European Union’s Horizon 2020 Research and
  Innovation Programme under Marie Skłodowska-Curie\r\nGrant Agreement 665385. K.S.S.
  acknowledges support by President’s Grant 075-15-2019-411. Design and assembly of
  some of the plasmids was supported by Russian Science Foundation grant 19-74-10102.
  Imaging experiments were partially supported by Russian Science Foundation grant
  17-14-01169p. LC-MS/MS analyses of extracts were\r\nsupported by Russian Science
  Foundation grant 16-14-00052p. Design and assembly of plasmids was partially supported
  by grant 075-15-2019-1789 from the Ministry of Science and Higher Education of the
  Russian Federation allocated to the Center for Precision Genome Editing and Genetic
  Technologies for Biomedicine. The authors\r\nwould like to acknowledge the work
  of Genomics Core Facility of the Skolkovo Institute of Science and Technology, which
  performed the sequencing and bioinformatic analysis."
article_processing_charge: No
article_type: original
author:
- first_name: Tatiana
  full_name: Mitiouchkina, Tatiana
  last_name: Mitiouchkina
- first_name: Alexander S.
  full_name: Mishin, Alexander S.
  last_name: Mishin
- first_name: Louisa
  full_name: Gonzalez Somermeyer, Louisa
  id: 4720D23C-F248-11E8-B48F-1D18A9856A87
  last_name: Gonzalez Somermeyer
  orcid: 0000-0001-9139-5383
- first_name: Nadezhda M.
  full_name: Markina, Nadezhda M.
  last_name: Markina
- first_name: Tatiana V.
  full_name: Chepurnyh, Tatiana V.
  last_name: Chepurnyh
- first_name: Elena B.
  full_name: Guglya, Elena B.
  last_name: Guglya
- first_name: Tatiana A.
  full_name: Karataeva, Tatiana A.
  last_name: Karataeva
- first_name: Kseniia A.
  full_name: Palkina, Kseniia A.
  last_name: Palkina
- first_name: Ekaterina S.
  full_name: Shakhova, Ekaterina S.
  last_name: Shakhova
- first_name: Liliia I.
  full_name: Fakhranurova, Liliia I.
  last_name: Fakhranurova
- first_name: Sofia V.
  full_name: Chekova, Sofia V.
  last_name: Chekova
- first_name: Aleksandra S.
  full_name: Tsarkova, Aleksandra S.
  last_name: Tsarkova
- first_name: Yaroslav V.
  full_name: Golubev, Yaroslav V.
  last_name: Golubev
- first_name: Vadim V.
  full_name: Negrebetsky, Vadim V.
  last_name: Negrebetsky
- first_name: Sergey A.
  full_name: Dolgushin, Sergey A.
  last_name: Dolgushin
- first_name: Pavel V.
  full_name: Shalaev, Pavel V.
  last_name: Shalaev
- first_name: Dmitry
  full_name: Shlykov, Dmitry
  last_name: Shlykov
- first_name: Olesya A.
  full_name: Melnik, Olesya A.
  last_name: Melnik
- first_name: Victoria O.
  full_name: Shipunova, Victoria O.
  last_name: Shipunova
- first_name: Sergey M.
  full_name: Deyev, Sergey M.
  last_name: Deyev
- first_name: Andrey I.
  full_name: Bubyrev, Andrey I.
  last_name: Bubyrev
- first_name: Alexander S.
  full_name: Pushin, Alexander S.
  last_name: Pushin
- first_name: Vladimir V.
  full_name: Choob, Vladimir V.
  last_name: Choob
- first_name: Sergey V.
  full_name: Dolgov, Sergey V.
  last_name: Dolgov
- first_name: Fyodor
  full_name: Kondrashov, Fyodor
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
- first_name: Ilia V.
  full_name: Yampolsky, Ilia V.
  last_name: Yampolsky
- first_name: Karen S.
  full_name: Sarkisyan, Karen S.
  last_name: Sarkisyan
citation:
  ama: Mitiouchkina T, Mishin AS, Gonzalez Somermeyer L, et al. Plants with genetically
    encoded autoluminescence. <i>Nature Biotechnology</i>. 2020;38:944-946. doi:<a
    href="https://doi.org/10.1038/s41587-020-0500-9">10.1038/s41587-020-0500-9</a>
  apa: Mitiouchkina, T., Mishin, A. S., Gonzalez Somermeyer, L., Markina, N. M., Chepurnyh,
    T. V., Guglya, E. B., … Sarkisyan, K. S. (2020). Plants with genetically encoded
    autoluminescence. <i>Nature Biotechnology</i>. Springer Nature. <a href="https://doi.org/10.1038/s41587-020-0500-9">https://doi.org/10.1038/s41587-020-0500-9</a>
  chicago: Mitiouchkina, Tatiana, Alexander S. Mishin, Louisa Gonzalez Somermeyer,
    Nadezhda M. Markina, Tatiana V. Chepurnyh, Elena B. Guglya, Tatiana A. Karataeva,
    et al. “Plants with Genetically Encoded Autoluminescence.” <i>Nature Biotechnology</i>.
    Springer Nature, 2020. <a href="https://doi.org/10.1038/s41587-020-0500-9">https://doi.org/10.1038/s41587-020-0500-9</a>.
  ieee: T. Mitiouchkina <i>et al.</i>, “Plants with genetically encoded autoluminescence,”
    <i>Nature Biotechnology</i>, vol. 38. Springer Nature, pp. 944–946, 2020.
  ista: Mitiouchkina T, Mishin AS, Gonzalez Somermeyer L, Markina NM, Chepurnyh TV,
    Guglya EB, Karataeva TA, Palkina KA, Shakhova ES, Fakhranurova LI, Chekova SV,
    Tsarkova AS, Golubev YV, Negrebetsky VV, Dolgushin SA, Shalaev PV, Shlykov D,
    Melnik OA, Shipunova VO, Deyev SM, Bubyrev AI, Pushin AS, Choob VV, Dolgov SV,
    Kondrashov F, Yampolsky IV, Sarkisyan KS. 2020. Plants with genetically encoded
    autoluminescence. Nature Biotechnology. 38, 944–946.
  mla: Mitiouchkina, Tatiana, et al. “Plants with Genetically Encoded Autoluminescence.”
    <i>Nature Biotechnology</i>, vol. 38, Springer Nature, 2020, pp. 944–46, doi:<a
    href="https://doi.org/10.1038/s41587-020-0500-9">10.1038/s41587-020-0500-9</a>.
  short: T. Mitiouchkina, A.S. Mishin, L. Gonzalez Somermeyer, N.M. Markina, T.V.
    Chepurnyh, E.B. Guglya, T.A. Karataeva, K.A. Palkina, E.S. Shakhova, L.I. Fakhranurova,
    S.V. Chekova, A.S. Tsarkova, Y.V. Golubev, V.V. Negrebetsky, S.A. Dolgushin, P.V.
    Shalaev, D. Shlykov, O.A. Melnik, V.O. Shipunova, S.M. Deyev, A.I. Bubyrev, A.S.
    Pushin, V.V. Choob, S.V. Dolgov, F. Kondrashov, I.V. Yampolsky, K.S. Sarkisyan,
    Nature Biotechnology 38 (2020) 944–946.
date_created: 2020-05-25T15:02:00Z
date_published: 2020-04-27T00:00:00Z
date_updated: 2025-04-14T07:49:47Z
day: '27'
ddc:
- '570'
department:
- _id: FyKo
doi: 10.1038/s41587-020-0500-9
ec_funded: 1
external_id:
  isi:
  - '000529298800003'
  pmid:
  - '32341562'
file:
- access_level: open_access
  checksum: 1b30467500ec6277229a875b06e196d0
  content_type: application/pdf
  creator: dernst
  date_created: 2020-08-28T08:57:07Z
  date_updated: 2021-03-02T23:30:03Z
  embargo: 2021-03-01
  file_id: '8316'
  file_name: 2020_NatureBiotech_Mitiouchkina.pdf
  file_size: 1180086
  relation: main_file
file_date_updated: 2021-03-02T23:30:03Z
has_accepted_license: '1'
intvolume: '        38'
isi: 1
language:
- iso: eng
month: '04'
oa: 1
oa_version: Submitted Version
page: 944-946
pmid: 1
project:
- _id: 26580278-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '771209'
  name: Characterizing the fitness landscape on population and global scales
publication: Nature Biotechnology
publication_identifier:
  eissn:
  - 1546-1696
  issn:
  - 1087-0156
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1038/s41587-020-0578-0
scopus_import: '1'
status: public
title: Plants with genetically encoded autoluminescence
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 38
year: '2020'
...
---
_id: '8139'
abstract:
- lang: eng
  text: 'Clathrin-mediated endocytosis (CME) is a crucial cellular process implicated
    in many aspects of plant growth, development, intra- and inter-cellular signaling,
    nutrient uptake and pathogen defense. Despite these significant roles, little
    is known about the precise molecular details of how it functions in planta. In
    order to facilitate the direct quantitative study of plant CME, here we review
    current routinely used methods and present refined, standardized quantitative
    imaging protocols which allow the detailed characterization of CME at multiple
    scales in plant tissues. These include: (i) an efficient electron microscopy protocol
    for the imaging of Arabidopsis CME vesicles in situ, thus providing a method for
    the detailed characterization of the ultra-structure of clathrin-coated vesicles;
    (ii) a detailed protocol and analysis for quantitative live-cell fluorescence
    microscopy to precisely examine the temporal interplay of endocytosis components
    during single CME events; (iii) a semi-automated analysis to allow the quantitative
    characterization of global internalization of cargos in whole plant tissues; and
    (iv) an overview and validation of useful genetic and pharmacological tools to
    interrogate the molecular mechanisms and function of CME in intact plant samples.'
acknowledged_ssus:
- _id: EM-Fac
- _id: Bio
acknowledgement: "This paper is dedicated to the memory of Christien Merrifield. He
  pioneered quantitative\r\nimaging approaches in mammalian CME and his mentorship
  inspired the development of all\r\nthe analysis methods presented here. His joy
  in research, pure scientific curiosity and\r\nmicroscopy excellence remain a constant
  inspiration. We thank Daniel Van Damme for gifting\r\nus the CLC2-GFP x TPLATE-TagRFP
  plants used in this manuscript. We further thank the\r\nScientific Service Units
  at IST Austria; specifically, the Electron Microscopy Facility for\r\ntechnical
  assistance (in particular Vanessa Zheden) and the BioImaging Facility BioImaging\r\nFacility
  for access to equipment. "
article_number: jcs248062
article_processing_charge: No
article_type: original
author:
- first_name: Alexander J
  full_name: Johnson, Alexander J
  id: 46A62C3A-F248-11E8-B48F-1D18A9856A87
  last_name: Johnson
  orcid: 0000-0002-2739-8843
- first_name: Nataliia
  full_name: Gnyliukh, Nataliia
  id: 390C1120-F248-11E8-B48F-1D18A9856A87
  last_name: Gnyliukh
  orcid: 0000-0002-2198-0509
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- first_name: Madhumitha
  full_name: Narasimhan, Madhumitha
  id: 44BF24D0-F248-11E8-B48F-1D18A9856A87
  last_name: Narasimhan
  orcid: 0000-0002-8600-0671
- first_name: G
  full_name: Vert, G
  last_name: Vert
- first_name: SY
  full_name: Bednarek, SY
  last_name: Bednarek
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Johnson AJ, Gnyliukh N, Kaufmann W, et al. Experimental toolbox for quantitative
    evaluation of clathrin-mediated endocytosis in the plant model Arabidopsis. <i>Journal
    of Cell Science</i>. 2020;133(15). doi:<a href="https://doi.org/10.1242/jcs.248062">10.1242/jcs.248062</a>
  apa: Johnson, A. J., Gnyliukh, N., Kaufmann, W., Narasimhan, M., Vert, G., Bednarek,
    S., &#38; Friml, J. (2020). Experimental toolbox for quantitative evaluation of
    clathrin-mediated endocytosis in the plant model Arabidopsis. <i>Journal of Cell
    Science</i>. The Company of Biologists. <a href="https://doi.org/10.1242/jcs.248062">https://doi.org/10.1242/jcs.248062</a>
  chicago: Johnson, Alexander J, Nataliia Gnyliukh, Walter Kaufmann, Madhumitha Narasimhan,
    G Vert, SY Bednarek, and Jiří Friml. “Experimental Toolbox for Quantitative Evaluation
    of Clathrin-Mediated Endocytosis in the Plant Model Arabidopsis.” <i>Journal of
    Cell Science</i>. The Company of Biologists, 2020. <a href="https://doi.org/10.1242/jcs.248062">https://doi.org/10.1242/jcs.248062</a>.
  ieee: A. J. Johnson <i>et al.</i>, “Experimental toolbox for quantitative evaluation
    of clathrin-mediated endocytosis in the plant model Arabidopsis,” <i>Journal of
    Cell Science</i>, vol. 133, no. 15. The Company of Biologists, 2020.
  ista: Johnson AJ, Gnyliukh N, Kaufmann W, Narasimhan M, Vert G, Bednarek S, Friml
    J. 2020. Experimental toolbox for quantitative evaluation of clathrin-mediated
    endocytosis in the plant model Arabidopsis. Journal of Cell Science. 133(15),
    jcs248062.
  mla: Johnson, Alexander J., et al. “Experimental Toolbox for Quantitative Evaluation
    of Clathrin-Mediated Endocytosis in the Plant Model Arabidopsis.” <i>Journal of
    Cell Science</i>, vol. 133, no. 15, jcs248062, The Company of Biologists, 2020,
    doi:<a href="https://doi.org/10.1242/jcs.248062">10.1242/jcs.248062</a>.
  short: A.J. Johnson, N. Gnyliukh, W. Kaufmann, M. Narasimhan, G. Vert, S. Bednarek,
    J. Friml, Journal of Cell Science 133 (2020).
date_created: 2020-07-21T08:58:19Z
date_published: 2020-08-06T00:00:00Z
date_updated: 2026-07-23T22:30:46Z
day: '06'
ddc:
- '575'
department:
- _id: JiFr
- _id: EM-Fac
doi: 10.1242/jcs.248062
ec_funded: 1
external_id:
  isi:
  - '000561047900021'
  pmid:
  - '32616560'
file:
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has_accepted_license: '1'
intvolume: '       133'
isi: 1
issue: '15'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26538374-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03630
  name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Journal of Cell Science
publication_identifier:
  eissn:
  - 1477-9137
  issn:
  - 0021-9533
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
related_material:
  record:
  - id: '14510'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Experimental toolbox for quantitative evaluation of clathrin-mediated endocytosis
  in the plant model Arabidopsis
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 133
year: '2020'
...
---
OA_place: publisher
_id: '8340'
abstract:
- lang: eng
  text: Mitochondria are sites of oxidative phosphorylation in eukaryotic cells. Oxidative
    phosphorylation operates by a chemiosmotic mechanism made possible by redox-driven
    proton pumping machines which establish a proton motive force across the inner
    mitochondrial membrane. This electrochemical proton gradient is used to drive
    ATP synthesis, which powers the majority of cellular processes such as protein
    synthesis, locomotion and signalling. In this thesis I investigate the structures
    and molecular mechanisms of two inner mitochondrial proton pumping enzymes, respiratory
    complex I and transhydrogenase. I present the first high-resolution structure
    of the full transhydrogenase from any species, and a significantly improved structure
    of complex I. Improving the resolution from 3.3 Å available previously to up to
    2.3 Å in this thesis allowed us to model bound water molecules, crucial in the
    proton pumping mechanism. For both enzymes, up to five cryo-EM datasets with different
    substrates and inhibitors bound were solved to delineate the catalytic cycle and
    understand the proton pumping mechanism. In transhydrogenase, the proton channel
    is gated by reversible detachment of the NADP(H)-binding domain which opens the
    proton channel to the opposite sites of the membrane. In complex I, the proton
    channels are gated by reversible protonation of key glutamate and lysine residues
    and breaking of the water wire connecting the proton pumps with the quinone reduction
    site. The tight coupling between the redox and the proton pumping reactions in
    transhydrogenase is achieved by controlling the NADP(H) exchange which can only
    happen when the NADP(H)-binding domain interacts with the membrane domain. In
    complex I, coupling is achieved by cycling of the whole complex between the closed
    state, in which quinone can get reduced, and the open state, in which NADH can
    induce quinol ejection from the binding pocket. On the basis of these results
    I propose detailed mechanisms for catalytic cycles of transhydrogenase and complex
    I that are consistent with a large amount of previous work. In both enzymes, conformational
    and electrostatic mechanisms contribute to the overall catalytic process. Results
    presented here could be used for better understanding of the human pathologies
    arising from deficiencies of complex I or transhydrogenase and could be used to
    develop novel therapies.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: 'I acknowledge the support of IST facilities, especially the Electron
  Miscroscopy facility for providing training and resources. Special thanks also go
  to cryo-EM specialists who helped me to collect the data present here: Dr Valentin
  Hodirnau (IST Austria), Dr Tom Heuser (IMBA, Vienna), Dr Rebecca Thompson (Uni.
  of Leeds) and Dr Jirka Nováček (CEITEC). This work has been supported by iNEXT,
  project number 653706, funded by the Horizon 2020 programme of the European Union.
  This project has received funding from the European Union’s Horizon 2020 research
  and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.'
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Domen
  full_name: Kampjut, Domen
  id: 37233050-F248-11E8-B48F-1D18A9856A87
  last_name: Kampjut
  orcid: 0000-0002-6018-3422
citation:
  ama: Kampjut D. Molecular mechanisms of mitochondrial redox-coupled proton pumping
    enzymes. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8340">10.15479/AT:ISTA:8340</a>
  apa: Kampjut, D. (2020). <i>Molecular mechanisms of mitochondrial redox-coupled
    proton pumping enzymes</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8340">https://doi.org/10.15479/AT:ISTA:8340</a>
  chicago: Kampjut, Domen. “Molecular Mechanisms of Mitochondrial Redox-Coupled Proton
    Pumping Enzymes.” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8340">https://doi.org/10.15479/AT:ISTA:8340</a>.
  ieee: D. Kampjut, “Molecular mechanisms of mitochondrial redox-coupled proton pumping
    enzymes,” Institute of Science and Technology Austria, 2020.
  ista: Kampjut D. 2020. Molecular mechanisms of mitochondrial redox-coupled proton
    pumping enzymes. Institute of Science and Technology Austria.
  mla: Kampjut, Domen. <i>Molecular Mechanisms of Mitochondrial Redox-Coupled Proton
    Pumping Enzymes</i>. Institute of Science and Technology Austria, 2020, doi:<a
    href="https://doi.org/10.15479/AT:ISTA:8340">10.15479/AT:ISTA:8340</a>.
  short: D. Kampjut, Molecular Mechanisms of Mitochondrial Redox-Coupled Proton Pumping
    Enzymes, Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-09-07T18:42:23Z
date_published: 2020-09-09T00:00:00Z
date_updated: 2026-04-08T07:43:58Z
day: '09'
ddc:
- '572'
degree_awarded: PhD
department:
- _id: LeSa
doi: 10.15479/AT:ISTA:8340
ec_funded: 1
file:
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  date_created: 2020-09-08T13:32:06Z
  date_updated: 2021-09-11T22:30:04Z
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  file_id: '8345'
  file_name: ThesisFull20200908.docx
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  date_created: 2020-09-14T15:02:20Z
  date_updated: 2021-09-11T22:30:04Z
  embargo: 2021-09-10
  file_id: '8393'
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  relation: main_file
file_date_updated: 2021-09-11T22:30:04Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: None
page: '242'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication_identifier:
  isbn:
  - 978-3-99078-008-4
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '6848'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Leonid A
  full_name: Sazanov, Leonid A
  id: 338D39FE-F248-11E8-B48F-1D18A9856A87
  last_name: Sazanov
  orcid: 0000-0002-0977-7989
title: Molecular mechanisms of mitochondrial redox-coupled proton pumping enzymes
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
_id: '7815'
abstract:
- lang: eng
  text: Beginning from a limited pool of progenitors, the mammalian cerebral cortex
    forms highly organized functional neural circuits. However, the underlying cellular
    and molecular mechanisms regulating lineage transitions of neural stem cells (NSCs)
    and eventual production of neurons and glia in the developing neuroepithelium
    remains unclear. Methods to trace NSC division patterns and map the lineage of
    clonally related cells have advanced dramatically. However, many contemporary
    lineage tracing techniques suffer from the lack of cellular resolution of progeny
    cell fate, which is essential for deciphering progenitor cell division patterns.
    Presented is a protocol using mosaic analysis with double markers (MADM) to perform
    in vivo clonal analysis. MADM concomitantly manipulates individual progenitor
    cells and visualizes precise division patterns and lineage progression at unprecedented
    single cell resolution. MADM-based interchromosomal recombination events during
    the G2-X phase of mitosis, together with temporally inducible CreERT2, provide
    exact information on the birth dates of clones and their division patterns. Thus,
    MADM lineage tracing provides unprecedented qualitative and quantitative optical
    readouts of the proliferation mode of stem cell progenitors at the single cell
    level. MADM also allows for examination of the mechanisms and functional requirements
    of candidate genes in NSC lineage progression. This method is unique in that comparative
    analysis of control and mutant subclones can be performed in the same tissue environment
    in vivo. Here, the protocol is described in detail, and experimental paradigms
    to employ MADM for clonal analysis and lineage tracing in the developing cerebral
    cortex are demonstrated. Importantly, this protocol can be adapted to perform
    MADM clonal analysis in any murine stem cell niche, as long as the CreERT2 driver
    is present.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: PreCl
article_number: e61147
article_processing_charge: No
article_type: original
author:
- first_name: Robert J
  full_name: Beattie, Robert J
  id: 2E26DF60-F248-11E8-B48F-1D18A9856A87
  last_name: Beattie
  orcid: 0000-0002-8483-8753
- first_name: Carmen
  full_name: Streicher, Carmen
  id: 36BCB99C-F248-11E8-B48F-1D18A9856A87
  last_name: Streicher
- first_name: Nicole
  full_name: Amberg, Nicole
  id: 4CD6AAC6-F248-11E8-B48F-1D18A9856A87
  last_name: Amberg
  orcid: 0000-0002-3183-8207
- first_name: Giselle T
  full_name: Cheung, Giselle T
  id: 471195F6-F248-11E8-B48F-1D18A9856A87
  last_name: Cheung
  orcid: 0000-0001-8457-2572
- first_name: Ximena
  full_name: Contreras, Ximena
  id: 475990FE-F248-11E8-B48F-1D18A9856A87
  last_name: Contreras
- first_name: Andi H
  full_name: Hansen, Andi H
  id: 38853E16-F248-11E8-B48F-1D18A9856A87
  last_name: Hansen
- first_name: Simon
  full_name: Hippenmeyer, Simon
  id: 37B36620-F248-11E8-B48F-1D18A9856A87
  last_name: Hippenmeyer
  orcid: 0000-0003-2279-1061
citation:
  ama: Beattie RJ, Streicher C, Amberg N, et al. Lineage tracing and clonal analysis
    in developing cerebral cortex using mosaic analysis with double markers (MADM).
    <i>Journal of Visual Experiments</i>. 2020;(159). doi:<a href="https://doi.org/10.3791/61147">10.3791/61147</a>
  apa: Beattie, R. J., Streicher, C., Amberg, N., Cheung, G. T., Contreras, X., Hansen,
    A. H., &#38; Hippenmeyer, S. (2020). Lineage tracing and clonal analysis in developing
    cerebral cortex using mosaic analysis with double markers (MADM). <i>Journal of
    Visual Experiments</i>. MyJove Corporation. <a href="https://doi.org/10.3791/61147">https://doi.org/10.3791/61147</a>
  chicago: Beattie, Robert J, Carmen Streicher, Nicole Amberg, Giselle T Cheung, Ximena
    Contreras, Andi H Hansen, and Simon Hippenmeyer. “Lineage Tracing and Clonal Analysis
    in Developing Cerebral Cortex Using Mosaic Analysis with Double Markers (MADM).”
    <i>Journal of Visual Experiments</i>. MyJove Corporation, 2020. <a href="https://doi.org/10.3791/61147">https://doi.org/10.3791/61147</a>.
  ieee: R. J. Beattie <i>et al.</i>, “Lineage tracing and clonal analysis in developing
    cerebral cortex using mosaic analysis with double markers (MADM),” <i>Journal
    of Visual Experiments</i>, no. 159. MyJove Corporation, 2020.
  ista: Beattie RJ, Streicher C, Amberg N, Cheung GT, Contreras X, Hansen AH, Hippenmeyer
    S. 2020. Lineage tracing and clonal analysis in developing cerebral cortex using
    mosaic analysis with double markers (MADM). Journal of Visual Experiments. (159),
    e61147.
  mla: Beattie, Robert J., et al. “Lineage Tracing and Clonal Analysis in Developing
    Cerebral Cortex Using Mosaic Analysis with Double Markers (MADM).” <i>Journal
    of Visual Experiments</i>, no. 159, e61147, MyJove Corporation, 2020, doi:<a href="https://doi.org/10.3791/61147">10.3791/61147</a>.
  short: R.J. Beattie, C. Streicher, N. Amberg, G.T. Cheung, X. Contreras, A.H. Hansen,
    S. Hippenmeyer, Journal of Visual Experiments (2020).
corr_author: '1'
date_created: 2020-05-11T08:31:20Z
date_published: 2020-05-08T00:00:00Z
date_updated: 2026-07-23T22:30:48Z
day: '08'
ddc:
- '570'
department:
- _id: SiHi
doi: 10.3791/61147
ec_funded: 1
external_id:
  isi:
  - '000546406600043'
  pmid:
  - '32449730'
file:
- access_level: open_access
  checksum: 3154ea7f90b9fb45e084cd1c2770597d
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  creator: rbeattie
  date_created: 2020-05-11T08:28:38Z
  date_updated: 2020-07-14T12:48:03Z
  file_id: '7816'
  file_name: jove-protocol-61147-lineage-tracing-clonal-analysis-developing-cerebral-cortex-using.pdf
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file_date_updated: 2020-07-14T12:48:03Z
has_accepted_license: '1'
isi: 1
issue: '159'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 264E56E2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02416
  name: Molecular Mechanisms Regulating Gliogenesis in the Neocortex
- _id: 268F8446-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: T01031
  name: Role of Eed in neural stem cell lineage progression
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 2625A13E-B435-11E9-9278-68D0E5697425
  grant_number: '24812'
  name: Molecular mechanisms of radial neuronal migration
- _id: 260018B0-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '725780'
  name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
publication: Journal of Visual Experiments
publication_identifier:
  issn:
  - 1940-087X
publication_status: published
publisher: MyJove Corporation
quality_controlled: '1'
related_material:
  record:
  - id: '7902'
    relation: part_of_dissertation
    status: public
scopus_import: '1'
status: public
title: Lineage tracing and clonal analysis in developing cerebral cortex using mosaic
  analysis with double markers (MADM)
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
OA_place: publisher
_id: '7902'
abstract:
- lang: eng
  text: "Mosaic genetic analysis has been widely used in different model organisms
    such as the fruit fly to study gene-function in a cell-autonomous or tissue-specific
    fashion. More recently, and less easily conducted, mosaic genetic analysis in
    mice has also been enabled with the ambition to shed light on human gene function
    and disease. These genetic tools are of particular interest, but not restricted
    to, the study of the brain. Notably, the MADM technology offers a genetic approach
    in mice to visualize and concomitantly manipulate small subsets of genetically
    defined cells at a clonal level and single cell resolution. MADM-based analysis
    has already advanced the study of genetic mechanisms regulating brain development
    and is expected that further MADM-based analysis of genetic alterations will continue
    to reveal important insights on the fundamental principles of development and
    disease to potentially assist in the development of new therapies or treatments.\r\nIn
    summary, this work completed and characterized the necessary genome-wide genetic
    tools to perform MADM-based analysis at single cell level of the vast majority
    of mouse genes in virtually any cell type and provided a protocol to perform lineage
    tracing using the novel MADM resource. Importantly, this work also explored and
    revealed novel aspects of biologically relevant events in an in vivo context,
    such as the chromosome-specific bias of chromatid sister segregation pattern,
    the generation of cell-type diversity in the cerebral cortex and in the cerebellum
    and finally, the relevance of the interplay between the cell-autonomous gene function
    and cell-non-autonomous (community) effects in radial glial progenitor lineage
    progression.\r\nThis work provides a foundation and opens the door to further
    elucidating the molecular mechanisms underlying neuronal diversity and astrocyte
    generation."
acknowledged_ssus:
- _id: PreCl
- _id: Bio
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ximena
  full_name: Contreras, Ximena
  id: 475990FE-F248-11E8-B48F-1D18A9856A87
  last_name: Contreras
citation:
  ama: Contreras X. Genetic dissection of neural development in health and disease
    at single cell resolution. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:7902">10.15479/AT:ISTA:7902</a>
  apa: Contreras, X. (2020). <i>Genetic dissection of neural development in health
    and disease at single cell resolution</i>. Institute of Science and Technology
    Austria. <a href="https://doi.org/10.15479/AT:ISTA:7902">https://doi.org/10.15479/AT:ISTA:7902</a>
  chicago: Contreras, Ximena. “Genetic Dissection of Neural Development in Health
    and Disease at Single Cell Resolution.” Institute of Science and Technology Austria,
    2020. <a href="https://doi.org/10.15479/AT:ISTA:7902">https://doi.org/10.15479/AT:ISTA:7902</a>.
  ieee: X. Contreras, “Genetic dissection of neural development in health and disease
    at single cell resolution,” Institute of Science and Technology Austria, 2020.
  ista: Contreras X. 2020. Genetic dissection of neural development in health and
    disease at single cell resolution. Institute of Science and Technology Austria.
  mla: Contreras, Ximena. <i>Genetic Dissection of Neural Development in Health and
    Disease at Single Cell Resolution</i>. Institute of Science and Technology Austria,
    2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:7902">10.15479/AT:ISTA:7902</a>.
  short: X. Contreras, Genetic Dissection of Neural Development in Health and Disease
    at Single Cell Resolution, Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-05-29T08:27:32Z
date_published: 2020-06-05T00:00:00Z
date_updated: 2026-06-18T19:12:39Z
day: '05'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: SiHi
doi: 10.15479/AT:ISTA:7902
ec_funded: 1
file:
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  checksum: 43c172bf006c95b65992d473c7240d13
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
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  date_created: 2020-06-05T08:18:08Z
  date_updated: 2021-06-07T22:30:03Z
  embargo_to: open_access
  file_id: '7927'
  file_name: PhDThesis_Contreras.docx
  file_size: 53134142
  relation: source_file
- access_level: open_access
  checksum: addfed9128271be05cae3608e03a6ec0
  content_type: application/pdf
  creator: xcontreras
  date_created: 2020-06-05T08:18:07Z
  date_updated: 2021-06-07T22:30:03Z
  embargo: 2021-06-06
  file_id: '7928'
  file_name: PhDThesis_Contreras.pdf
  file_size: 35117191
  relation: main_file
file_date_updated: 2021-06-07T22:30:03Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '214'
project:
- _id: 260018B0-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '725780'
  name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '28'
    relation: dissertation_contains
    status: public
  - id: '7815'
    relation: dissertation_contains
    status: public
  - id: '6830'
    relation: dissertation_contains
    status: public
status: public
supervisor:
- first_name: Simon
  full_name: Hippenmeyer, Simon
  id: 37B36620-F248-11E8-B48F-1D18A9856A87
  last_name: Hippenmeyer
  orcid: 0000-0003-2279-1061
title: Genetic dissection of neural development in health and disease at single cell
  resolution
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
_id: '8190'
article_number: e202007029
article_processing_charge: No
article_type: letter_note
author:
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Anna
  full_name: Huttenlocher, Anna
  last_name: Huttenlocher
citation:
  ama: 'Sixt MK, Huttenlocher A. Zena Werb (1945-2020): Cell biology in context. <i>The
    Journal of Cell Biology</i>. 2020;219(8). doi:<a href="https://doi.org/10.1083/jcb.202007029">10.1083/jcb.202007029</a>'
  apa: 'Sixt, M. K., &#38; Huttenlocher, A. (2020). Zena Werb (1945-2020): Cell biology
    in context. <i>The Journal of Cell Biology</i>. Rockefeller University Press.
    <a href="https://doi.org/10.1083/jcb.202007029">https://doi.org/10.1083/jcb.202007029</a>'
  chicago: 'Sixt, Michael K, and Anna Huttenlocher. “Zena Werb (1945-2020): Cell Biology
    in Context.” <i>The Journal of Cell Biology</i>. Rockefeller University Press,
    2020. <a href="https://doi.org/10.1083/jcb.202007029">https://doi.org/10.1083/jcb.202007029</a>.'
  ieee: 'M. K. Sixt and A. Huttenlocher, “Zena Werb (1945-2020): Cell biology in context,”
    <i>The Journal of Cell Biology</i>, vol. 219, no. 8. Rockefeller University Press,
    2020.'
  ista: 'Sixt MK, Huttenlocher A. 2020. Zena Werb (1945-2020): Cell biology in context.
    The Journal of Cell Biology. 219(8), e202007029.'
  mla: 'Sixt, Michael K., and Anna Huttenlocher. “Zena Werb (1945-2020): Cell Biology
    in Context.” <i>The Journal of Cell Biology</i>, vol. 219, no. 8, e202007029,
    Rockefeller University Press, 2020, doi:<a href="https://doi.org/10.1083/jcb.202007029">10.1083/jcb.202007029</a>.'
  short: M.K. Sixt, A. Huttenlocher, The Journal of Cell Biology 219 (2020).
date_created: 2020-08-02T22:00:57Z
date_published: 2020-07-22T00:00:00Z
date_updated: 2025-06-12T07:34:40Z
day: '22'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1083/jcb.202007029
external_id:
  isi:
  - '000573631000004'
  pmid:
  - '32699885'
file:
- access_level: open_access
  checksum: 30016d778d266b8e17d01094917873b8
  content_type: application/pdf
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  date_created: 2020-08-04T13:11:52Z
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file_date_updated: 2021-02-02T23:30:03Z
has_accepted_license: '1'
intvolume: '       219'
isi: 1
issue: '8'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: The Journal of Cell Biology
publication_identifier:
  eissn:
  - 1540-8140
publication_status: published
publisher: Rockefeller University Press
scopus_import: '1'
status: public
title: 'Zena Werb (1945-2020): Cell biology in context'
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 219
year: '2020'
...
---
_id: '8350'
abstract:
- lang: eng
  text: "Cytoplasm is a gel-like crowded environment composed of tens of thousands
    of macromolecules, organelles, cytoskeletal networks and cytosol. The structure
    of the cytoplasm is thought to be highly organized and heterogeneous due to the
    crowding of its constituents and their effective compartmentalization. In such
    an environment, the diffusive dynamics of the molecules is very restricted, an
    effect that is further amplified by clustering and anchoring of molecules. Despite
    the jammed nature of the cytoplasm at the microscopic scale, large-scale reorganization
    of cytoplasm is essential for important cellular functions, such as nuclear positioning
    and cell division. How such mesoscale reorganization of the cytoplasm is achieved,
    especially for very large cells such as oocytes or syncytial tissues that can
    span hundreds of micrometers in size, has only begun to be understood.\r\nIn this
    thesis, I focus on the recent advances in elucidating the molecular, cellular
    and biophysical principles underlying cytoplasmic organization across different
    scales, structures and species. First, I outline which of these principles have
    been identified by reductionist approaches, such as in vitro reconstitution assays,
    where boundary conditions and components can be modulated at ease. I then describe
    how the theoretical and experimental framework established in these reduced systems
    have been applied to their more complex in vivo counterparts, in particular oocytes
    and embryonic syncytial structures, and discuss how such complex biological systems
    can initiate symmetry breaking and establish patterning.\r\nSpecifically, I examine
    an example of large-scale reorganizations taking place in zebrafish embryos, where
    extensive cytoplasmic streaming leads to the segregation of cytoplasm from yolk
    granules along the animal-vegetal axis of the embryo. Using biophysical experimentation
    and theory, I investigate the forces underlying this process, to show that this
    process does not rely on cortical actin reorganization, as previously thought,
    but instead on a cell-cycle-dependent bulk actin polymerization wave traveling
    from the animal to the vegetal pole of the embryo. This wave functions in segregation
    by both pulling cytoplasm animally and pushing yolk granules vegetally. Cytoplasm
    pulling is mediated by bulk actin network flows exerting friction forces on the
    cytoplasm, while yolk granule pushing is achieved by a mechanism closely resembling
    actin comet formation on yolk granules. This study defines a novel role of bulk
    actin polymerization waves in embryo polarization via cytoplasmic segregation.
    Lastly, I describe the cytoplasmic reorganizations taking place during zebrafish
    oocyte maturation, where the initial segregation of the cytoplasm and yolk granules
    occurs. Here, I demonstrate a previously uncharacterized wave of microtubule aster
    formation, traveling the oocyte along the animal-vegetal axis. Further research
    is required to determine the role of such microtubule structures in cytoplasmic
    reorganizations therein.\r\nCollectively, these studies provide further evidence
    for the coupling between cell cytoskeleton and cell cycle machinery, which can
    underlie a core self-organizing mechanism for orchestrating large-scale reorganizations
    in a cell-cycle-tunable manner, where the modulations of the force-generating
    machinery and cytoplasmic mechanics can be harbored to fulfill cellular functions."
acknowledged_ssus:
- _id: PreCl
- _id: Bio
- _id: EM-Fac
acknowledgement: "I would have had no fish and hence no results without our wonderful
  fish facility crew, Verena Mayer, Eva Schlegl, Andreas Mlak and Matthias Nowak.
  Special thanks to Verena for being always happy to help and dealing with our chaotic
  schedules in the lab. Danke auch, Verena, für deine Geduld, mit mir auf Deutsch
  zu sprechen. Das hat mir sehr geholfen.\r\nSpecial thanks to the Bioimaging and
  EM facilities at IST Austria for supporting us every day. Very special thanks would
  go to Robert Hauschild for his continuous support on data analysis and also to Jack
  Merrin for designing and building microfabricated chambers for the project and for
  the various discussions on making zebrafish extracts."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Shayan
  full_name: Shamipour, Shayan
  id: 40B34FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Shamipour
citation:
  ama: Shamipour S. Bulk actin dynamics drive phase segregation in zebrafish oocytes
    . 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8350">10.15479/AT:ISTA:8350</a>
  apa: Shamipour, S. (2020). <i>Bulk actin dynamics drive phase segregation in zebrafish
    oocytes </i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8350">https://doi.org/10.15479/AT:ISTA:8350</a>
  chicago: Shamipour, Shayan. “Bulk Actin Dynamics Drive Phase Segregation in Zebrafish
    Oocytes .” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8350">https://doi.org/10.15479/AT:ISTA:8350</a>.
  ieee: S. Shamipour, “Bulk actin dynamics drive phase segregation in zebrafish oocytes
    ,” Institute of Science and Technology Austria, 2020.
  ista: Shamipour S. 2020. Bulk actin dynamics drive phase segregation in zebrafish
    oocytes . Institute of Science and Technology Austria.
  mla: Shamipour, Shayan. <i>Bulk Actin Dynamics Drive Phase Segregation in Zebrafish
    Oocytes </i>. Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8350">10.15479/AT:ISTA:8350</a>.
  short: S. Shamipour, Bulk Actin Dynamics Drive Phase Segregation in Zebrafish Oocytes
    , Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-09-09T11:12:10Z
date_published: 2020-09-09T00:00:00Z
date_updated: 2025-09-11T07:08:52Z
day: '09'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: BjHo
- _id: CaHe
doi: 10.15479/AT:ISTA:8350
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  date_updated: 2021-09-11T22:30:05Z
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file_date_updated: 2021-09-11T22:30:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: None
page: '107'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7001'
    relation: part_of_dissertation
    status: public
  - id: '6508'
    relation: part_of_dissertation
    status: public
  - id: '735'
    relation: part_of_dissertation
    status: public
  - id: '661'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
- first_name: Björn
  full_name: Hof, Björn
  id: 3A374330-F248-11E8-B48F-1D18A9856A87
  last_name: Hof
  orcid: 0000-0003-2057-2754
title: 'Bulk actin dynamics drive phase segregation in zebrafish oocytes '
type: dissertation
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '8434'
abstract:
- lang: eng
  text: 'Efficient migration on adhesive surfaces involves the protrusion of lamellipodial
    actin networks and their subsequent stabilization by nascent adhesions. The actin-binding
    protein lamellipodin (Lpd) is thought to play a critical role in lamellipodium
    protrusion, by delivering Ena/VASP proteins onto the growing plus ends of actin
    filaments and by interacting with the WAVE regulatory complex, an activator of
    the Arp2/3 complex, at the leading edge. Using B16-F1 melanoma cell lines, we
    demonstrate that genetic ablation of Lpd compromises protrusion efficiency and
    coincident cell migration without altering essential parameters of lamellipodia,
    including their maximal rate of forward advancement and actin polymerization.
    We also confirmed lamellipodia and migration phenotypes with CRISPR/Cas9-mediated
    Lpd knockout Rat2 fibroblasts, excluding cell type-specific effects. Moreover,
    computer-aided analysis of cell-edge morphodynamics on B16-F1 cell lamellipodia
    revealed that loss of Lpd correlates with reduced temporal protrusion maintenance
    as a prerequisite of nascent adhesion formation. We conclude that Lpd optimizes
    protrusion and nascent adhesion formation by counteracting frequent, chaotic retraction
    and membrane ruffling.This article has an associated First Person interview with
    the first author of the paper. '
acknowledgement: This work was supported in part by Deutsche Forschungsgemeinschaft
  (DFG)[GRK2223/1, RO2414/5-1 (to K.R.), FA350/11-1 (to M.F.) and FA330/11-1 (to J.F.)],as
  well as by intramural funding from the Helmholtz Association (to T.E.B.S. andK.R.).
  G.D. was additionally funded by the Austrian Science Fund (FWF) LiseMeitner Program
  [M-2495]. A.C.H. and M.W. are supported by the Francis CrickInstitute, which receives
  its core funding from Cancer Research UK [FC001209], theMedical Research Council
  [FC001209] and the Wellcome Trust [FC001209]. M.K. issupported by the Biotechnology
  and Biological Sciences Research Council [BB/F011431/1, BB/J000590/1, BB/N000226/1].
  Deposited in PMC for release after 6months.
article_number: jcs239020
article_processing_charge: No
article_type: original
author:
- first_name: Georgi A
  full_name: Dimchev, Georgi A
  id: 38C393BE-F248-11E8-B48F-1D18A9856A87
  last_name: Dimchev
  orcid: 0000-0001-8370-6161
- first_name: Behnam
  full_name: Amiri, Behnam
  last_name: Amiri
- first_name: Ashley C.
  full_name: Humphries, Ashley C.
  last_name: Humphries
- first_name: Matthias
  full_name: Schaks, Matthias
  last_name: Schaks
- first_name: Vanessa
  full_name: Dimchev, Vanessa
  last_name: Dimchev
- first_name: Theresia E. B.
  full_name: Stradal, Theresia E. B.
  last_name: Stradal
- first_name: Jan
  full_name: Faix, Jan
  last_name: Faix
- first_name: Matthias
  full_name: Krause, Matthias
  last_name: Krause
- first_name: Michael
  full_name: Way, Michael
  last_name: Way
- first_name: Martin
  full_name: Falcke, Martin
  last_name: Falcke
- first_name: Klemens
  full_name: Rottner, Klemens
  last_name: Rottner
citation:
  ama: Dimchev GA, Amiri B, Humphries AC, et al. Lamellipodin tunes cell migration
    by stabilizing protrusions and promoting adhesion formation. <i>Journal of Cell
    Science</i>. 2020;133(7). doi:<a href="https://doi.org/10.1242/jcs.239020">10.1242/jcs.239020</a>
  apa: Dimchev, G. A., Amiri, B., Humphries, A. C., Schaks, M., Dimchev, V., Stradal,
    T. E. B., … Rottner, K. (2020). Lamellipodin tunes cell migration by stabilizing
    protrusions and promoting adhesion formation. <i>Journal of Cell Science</i>.
    The Company of Biologists. <a href="https://doi.org/10.1242/jcs.239020">https://doi.org/10.1242/jcs.239020</a>
  chicago: Dimchev, Georgi A, Behnam Amiri, Ashley C. Humphries, Matthias Schaks,
    Vanessa Dimchev, Theresia E. B. Stradal, Jan Faix, et al. “Lamellipodin Tunes
    Cell Migration by Stabilizing Protrusions and Promoting Adhesion Formation.” <i>Journal
    of Cell Science</i>. The Company of Biologists, 2020. <a href="https://doi.org/10.1242/jcs.239020">https://doi.org/10.1242/jcs.239020</a>.
  ieee: G. A. Dimchev <i>et al.</i>, “Lamellipodin tunes cell migration by stabilizing
    protrusions and promoting adhesion formation,” <i>Journal of Cell Science</i>,
    vol. 133, no. 7. The Company of Biologists, 2020.
  ista: Dimchev GA, Amiri B, Humphries AC, Schaks M, Dimchev V, Stradal TEB, Faix
    J, Krause M, Way M, Falcke M, Rottner K. 2020. Lamellipodin tunes cell migration
    by stabilizing protrusions and promoting adhesion formation. Journal of Cell Science.
    133(7), jcs239020.
  mla: Dimchev, Georgi A., et al. “Lamellipodin Tunes Cell Migration by Stabilizing
    Protrusions and Promoting Adhesion Formation.” <i>Journal of Cell Science</i>,
    vol. 133, no. 7, jcs239020, The Company of Biologists, 2020, doi:<a href="https://doi.org/10.1242/jcs.239020">10.1242/jcs.239020</a>.
  short: G.A. Dimchev, B. Amiri, A.C. Humphries, M. Schaks, V. Dimchev, T.E.B. Stradal,
    J. Faix, M. Krause, M. Way, M. Falcke, K. Rottner, Journal of Cell Science 133
    (2020).
date_created: 2020-09-17T14:00:33Z
date_published: 2020-04-09T00:00:00Z
date_updated: 2025-04-15T07:52:13Z
day: '09'
ddc:
- '570'
department:
- _id: FlSc
doi: 10.1242/jcs.239020
external_id:
  isi:
  - '000534387800005'
  pmid:
  - ' 32094266'
file:
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  checksum: ba917e551acc4ece2884b751434df9ae
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  date_created: 2020-09-17T14:07:51Z
  date_updated: 2020-10-11T22:30:02Z
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file_date_updated: 2020-10-11T22:30:02Z
has_accepted_license: '1'
intvolume: '       133'
isi: 1
issue: '7'
keyword:
- Cell Biology
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2674F658-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02495
  name: Protein structure and function in filopodia across scales
publication: Journal of Cell Science
publication_identifier:
  eissn:
  - 1477-9137
  issn:
  - 0021-9533
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lamellipodin tunes cell migration by stabilizing protrusions and promoting
  adhesion formation
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 133
year: '2020'
...
---
_id: '7427'
abstract:
- lang: eng
  text: Plants, like other multicellular organisms, survive through a delicate balance
    between growth and defense against pathogens. Salicylic acid (SA) is a major defense
    signal in plants, and the perception mechanism as well as downstream signaling
    activating the immune response are known. Here, we identify a parallel SA signaling
    that mediates growth attenuation. SA directly binds to A subunits of protein phosphatase
    2A (PP2A), inhibiting activity of this complex. Among PP2A targets, the PIN2 auxin
    transporter is hyperphosphorylated in response to SA, leading to changed activity
    of this important growth regulator. Accordingly, auxin transport and auxin-mediated
    root development, including growth, gravitropic response, and lateral root organogenesis,
    are inhibited. This study reveals how SA, besides activating immunity, concomitantly
    attenuates growth through crosstalk with the auxin distribution network. Further
    analysis of this dual role of SA and characterization of additional SA-regulated
    PP2A targets will provide further insights into mechanisms maintaining a balance
    between growth and defense.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
acknowledgement: "We thank Shigeyuki Betsuyaku (University of Tsukuba), Alison Delong
  (Brown University), Xinnian Dong (Duke University), Dolf Weijers (Wageningen University),
  Yuelin Zhang (UBC), and Martine Pastuglia (Institut Jean-Pierre Bourgin) for sharing
  published materials; Jana Riederer for help with cantharidin physiological analysis;
  David Domjan for help with cloning pET28a-PIN2HL; Qing Lu for help with DARTS; Hana
  Kozubı´kova´ for technical support on SA derivative synthesis; Zuzana Vondra´ kova´
  for technical support with tobacco cells; Lucia Strader (Washington University),
  Bert De Rybel (Ghent University), Bartel Vanholme (Ghent University), and Lukas
  Mach (BOKU) for helpful discussions; and bioimaging and life science facilities
  of IST Austria for continuous support. We gratefully acknowledge the Nottingham
  Arabidopsis Stock Center (NASC) for providing T-DNA insertional mutants. The DSC
  and SPR instruments were provided by the EQ-BOKU VIBT GmbH and the BOKU Core Facility
  for Biomolecular and Cellular Analysis, with help of Irene Schaffner. The research
  leading to these results has received funding from the European Union’s Horizon
  2020 program (ERC grant agreement no. 742985 to J.F.) and the People Programme (Marie
  Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013)
  under REA grant agreement no. 291734. S.T. was supported by a European Molecular
  Biology Organization (EMBO) long-term postdoctoral fellowship (ALTF 723-2015). O.N.
  was supported by the Ministry of Education, Youth and Sports of the Czech Republic
  (European Regional Development Fund-Project ‘‘Centre for Experimental Plant Biology’’
  no. CZ.02.1.01/0.0/0.0/16_019/0000738). J. Pospısil was supported by European Regional
  Development Fund Project ‘‘Centre for Experimental Plant Biology’’\r\n(no. CZ.02.1.01/0.0/0.0/16_019/0000738).
  J. Petrasek was supported by EU Operational Programme Prague-Competitiveness (no.
  CZ.2.16/3.1.00/21519). "
article_processing_charge: No
article_type: original
author:
- first_name: Shutang
  full_name: Tan, Shutang
  id: 2DE75584-F248-11E8-B48F-1D18A9856A87
  last_name: Tan
  orcid: 0000-0002-0471-8285
- first_name: Melinda F
  full_name: Abas, Melinda F
  id: 3CFB3B1C-F248-11E8-B48F-1D18A9856A87
  last_name: Abas
- first_name: Inge
  full_name: Verstraeten, Inge
  id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
  last_name: Verstraeten
  orcid: 0000-0001-7241-2328
- first_name: Matous
  full_name: Glanc, Matous
  id: 1AE1EA24-02D0-11E9-9BAA-DAF4881429F2
  last_name: Glanc
  orcid: 0000-0003-0619-7783
- first_name: Gergely
  full_name: Molnar, Gergely
  id: 34F1AF46-F248-11E8-B48F-1D18A9856A87
  last_name: Molnar
- first_name: Jakub
  full_name: Hajny, Jakub
  id: 4800CC20-F248-11E8-B48F-1D18A9856A87
  last_name: Hajny
  orcid: 0000-0003-2140-7195
- first_name: Pavel
  full_name: Lasák, Pavel
  last_name: Lasák
- first_name: Ivan
  full_name: Petřík, Ivan
  last_name: Petřík
- first_name: Eugenia
  full_name: Russinova, Eugenia
  last_name: Russinova
- first_name: Jan
  full_name: Petrášek, Jan
  last_name: Petrášek
- first_name: Ondřej
  full_name: Novák, Ondřej
  last_name: Novák
- first_name: Jiří
  full_name: Pospíšil, Jiří
  last_name: Pospíšil
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Tan S, Abas MF, Verstraeten I, et al. Salicylic acid targets protein phosphatase
    2A to attenuate growth in plants. <i>Current Biology</i>. 2020;30(3):381-395.e8.
    doi:<a href="https://doi.org/10.1016/j.cub.2019.11.058">10.1016/j.cub.2019.11.058</a>
  apa: Tan, S., Abas, M. F., Verstraeten, I., Glanc, M., Molnar, G., Hajny, J., …
    Friml, J. (2020). Salicylic acid targets protein phosphatase 2A to attenuate growth
    in plants. <i>Current Biology</i>. Cell Press. <a href="https://doi.org/10.1016/j.cub.2019.11.058">https://doi.org/10.1016/j.cub.2019.11.058</a>
  chicago: Tan, Shutang, Melinda F Abas, Inge Verstraeten, Matous Glanc, Gergely Molnar,
    Jakub Hajny, Pavel Lasák, et al. “Salicylic Acid Targets Protein Phosphatase 2A
    to Attenuate Growth in Plants.” <i>Current Biology</i>. Cell Press, 2020. <a href="https://doi.org/10.1016/j.cub.2019.11.058">https://doi.org/10.1016/j.cub.2019.11.058</a>.
  ieee: S. Tan <i>et al.</i>, “Salicylic acid targets protein phosphatase 2A to attenuate
    growth in plants,” <i>Current Biology</i>, vol. 30, no. 3. Cell Press, p. 381–395.e8,
    2020.
  ista: Tan S, Abas MF, Verstraeten I, Glanc M, Molnar G, Hajny J, Lasák P, Petřík
    I, Russinova E, Petrášek J, Novák O, Pospíšil J, Friml J. 2020. Salicylic acid
    targets protein phosphatase 2A to attenuate growth in plants. Current Biology.
    30(3), 381–395.e8.
  mla: Tan, Shutang, et al. “Salicylic Acid Targets Protein Phosphatase 2A to Attenuate
    Growth in Plants.” <i>Current Biology</i>, vol. 30, no. 3, Cell Press, 2020, p.
    381–395.e8, doi:<a href="https://doi.org/10.1016/j.cub.2019.11.058">10.1016/j.cub.2019.11.058</a>.
  short: S. Tan, M.F. Abas, I. Verstraeten, M. Glanc, G. Molnar, J. Hajny, P. Lasák,
    I. Petřík, E. Russinova, J. Petrášek, O. Novák, J. Pospíšil, J. Friml, Current
    Biology 30 (2020) 381–395.e8.
corr_author: '1'
date_created: 2020-02-02T23:01:00Z
date_published: 2020-02-03T00:00:00Z
date_updated: 2026-07-23T22:30:50Z
day: '03'
ddc:
- '580'
department:
- _id: JiFr
- _id: EvBe
doi: 10.1016/j.cub.2019.11.058
ec_funded: 1
external_id:
  isi:
  - '000511287900018'
  pmid:
  - '31956021'
file:
- access_level: open_access
  checksum: 16f7d51fe28f91c21e4896a2028df40b
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-22T09:51:28Z
  date_updated: 2020-09-22T09:51:28Z
  file_id: '8555'
  file_name: 2020_CurrentBiology_Tan.pdf
  file_size: 5360135
  relation: main_file
  success: 1
file_date_updated: 2020-09-22T09:51:28Z
has_accepted_license: '1'
intvolume: '        30'
isi: 1
issue: '3'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 381-395.e8
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '742985'
  name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 256FEF10-B435-11E9-9278-68D0E5697425
  grant_number: 723-2015
  name: Molecular Mechanism underlying Salicylic Acid Regulation of Endocytic Trafficking
    in Arabidopsis
publication: Current Biology
publication_identifier:
  issn:
  - '09609822'
publication_status: published
publisher: Cell Press
quality_controlled: '1'
related_material:
  record:
  - id: '8822'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Salicylic acid targets protein phosphatase 2A to attenuate growth in plants
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 30
year: '2020'
...
---
_id: '7500'
abstract:
- lang: eng
  text: "Plant survival depends on vascular tissues, which originate in a self‐organizing
    manner as strands of cells co‐directionally transporting the plant hormone auxin.
    The latter phenomenon (also known as auxin canalization) is classically hypothesized
    to be regulated by auxin itself via the effect of this hormone on the polarity
    of its own intercellular transport. Correlative observations supported this concept,
    but molecular insights remain limited.\r\nIn the current study, we established
    an experimental system based on the model Arabidopsis thaliana, which exhibits
    auxin transport channels and formation of vasculature strands in response to local
    auxin application.\r\nOur methodology permits the genetic analysis of auxin canalization
    under controllable experimental conditions. By utilizing this opportunity, we
    confirmed the dependence of auxin canalization on a PIN‐dependent auxin transport
    and nuclear, TIR1/AFB‐mediated auxin signaling. We also show that leaf venation
    and auxin‐mediated PIN repolarization in the root require TIR1/AFB signaling.\r\nFurther
    studies based on this experimental system are likely to yield better understanding
    of the mechanisms underlying auxin transport polarization in other developmental
    contexts."
acknowledgement: We thank Mark Estelle, José M. Alonso and the Arabidopsis Stock Centre
  for providing seeds. We acknowledge the core facility CELLIM of CEITEC supported
  by the MEYS CR (LM2015062 Czech‐BioImaging) and Plant Sciences Core Facility of
  CEITEC Masaryk University for help in generating essential data. This project received
  funding from the European Research Council (ERC) under the European Union's Horizon
  2020 research and innovation program (grant agreement no. 742985) and the Czech
  Science Foundation GAČR (GA13‐40637S and GA18‐26981S) to JF. JH is the recipient
  of a DOC Fellowship of the Austrian Academy of Sciences at the Institute of Science
  and Technology. The authors declare no competing interests.
article_processing_charge: No
article_type: original
author:
- first_name: E
  full_name: Mazur, E
  last_name: Mazur
- first_name: Ivan
  full_name: Kulik, Ivan
  id: F0AB3FCE-02D1-11E9-BD0E-99399A5D3DEB
  last_name: Kulik
- first_name: Jakub
  full_name: Hajny, Jakub
  id: 4800CC20-F248-11E8-B48F-1D18A9856A87
  last_name: Hajny
  orcid: 0000-0003-2140-7195
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Mazur E, Kulik I, Hajny J, Friml J. Auxin canalization and vascular tissue
    formation by TIR1/AFB-mediated auxin signaling in arabidopsis. <i>New Phytologist</i>.
    2020;226(5):1375-1383. doi:<a href="https://doi.org/10.1111/nph.16446">10.1111/nph.16446</a>
  apa: Mazur, E., Kulik, I., Hajny, J., &#38; Friml, J. (2020). Auxin canalization
    and vascular tissue formation by TIR1/AFB-mediated auxin signaling in arabidopsis.
    <i>New Phytologist</i>. Wiley. <a href="https://doi.org/10.1111/nph.16446">https://doi.org/10.1111/nph.16446</a>
  chicago: Mazur, E, Ivan Kulik, Jakub Hajny, and Jiří Friml. “Auxin Canalization
    and Vascular Tissue Formation by TIR1/AFB-Mediated Auxin Signaling in Arabidopsis.”
    <i>New Phytologist</i>. Wiley, 2020. <a href="https://doi.org/10.1111/nph.16446">https://doi.org/10.1111/nph.16446</a>.
  ieee: E. Mazur, I. Kulik, J. Hajny, and J. Friml, “Auxin canalization and vascular
    tissue formation by TIR1/AFB-mediated auxin signaling in arabidopsis,” <i>New
    Phytologist</i>, vol. 226, no. 5. Wiley, pp. 1375–1383, 2020.
  ista: Mazur E, Kulik I, Hajny J, Friml J. 2020. Auxin canalization and vascular
    tissue formation by TIR1/AFB-mediated auxin signaling in arabidopsis. New Phytologist.
    226(5), 1375–1383.
  mla: Mazur, E., et al. “Auxin Canalization and Vascular Tissue Formation by TIR1/AFB-Mediated
    Auxin Signaling in Arabidopsis.” <i>New Phytologist</i>, vol. 226, no. 5, Wiley,
    2020, pp. 1375–83, doi:<a href="https://doi.org/10.1111/nph.16446">10.1111/nph.16446</a>.
  short: E. Mazur, I. Kulik, J. Hajny, J. Friml, New Phytologist 226 (2020) 1375–1383.
corr_author: '1'
date_created: 2020-02-18T10:03:47Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2026-07-23T22:30:50Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1111/nph.16446
ec_funded: 1
external_id:
  isi:
  - '000514939700001'
  pmid:
  - '31971254'
file:
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has_accepted_license: '1'
intvolume: '       226'
isi: 1
issue: '5'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 1375-1383
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '742985'
  name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 2699E3D2-B435-11E9-9278-68D0E5697425
  grant_number: '25239'
  name: Cell surface receptor complexes for PIN polarity and auxin-mediated development
publication: New Phytologist
publication_identifier:
  eissn:
  - 1469-8137
  issn:
  - 0028-646x
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
  record:
  - id: '8822'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Auxin canalization and vascular tissue formation by TIR1/AFB-mediated auxin
  signaling in arabidopsis
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 226
year: '2020'
...
---
_id: '7652'
abstract:
- lang: eng
  text: Organisms cope with change by taking advantage of transcriptional regulators.
    However, when faced with rare environments, the evolution of transcriptional regulators
    and their promoters may be too slow. Here, we investigate whether the intrinsic
    instability of gene duplication and amplification provides a generic alternative
    to canonical gene regulation. Using real-time monitoring of gene-copy-number mutations
    in Escherichia coli, we show that gene duplications and amplifications enable
    adaptation to fluctuating environments by rapidly generating copy-number and,
    therefore, expression-level polymorphisms. This amplification-mediated gene expression
    tuning (AMGET) occurs on timescales that are similar to canonical gene regulation
    and can respond to rapid environmental changes. Mathematical modelling shows that
    amplifications also tune gene expression in stochastic environments in which transcription-factor-based
    schemes are hard to evolve or maintain. The fleeting nature of gene amplifications
    gives rise to a generic population-level mechanism that relies on genetic heterogeneity
    to rapidly tune the expression of any gene, without leaving any genomic signature.
acknowledgement: We thank L. Hurst, N. Barton, M. Pleska, M. Steinrück, B. Kavcic
  and A. Staron for input on the manuscript, and To. Bergmiller and R. Chait for help
  with microfluidics experiments. I.T. is a recipient the OMV fellowship. R.G. is
  a recipient of a DOC (Doctoral Fellowship Programme of the Austrian Academy of Sciences)
  Fellowship of the Austrian Academy of Sciences.
article_processing_charge: No
article_type: original
author:
- first_name: Isabella
  full_name: Tomanek, Isabella
  id: 3981F020-F248-11E8-B48F-1D18A9856A87
  last_name: Tomanek
  orcid: 0000-0001-6197-363X
- first_name: Rok
  full_name: Grah, Rok
  id: 483E70DE-F248-11E8-B48F-1D18A9856A87
  last_name: Grah
  orcid: 0000-0003-2539-3560
- first_name: M.
  full_name: Lagator, M.
  last_name: Lagator
- first_name: A. M. C.
  full_name: Andersson, A. M. C.
  last_name: Andersson
- first_name: Jonathan P
  full_name: Bollback, Jonathan P
  id: 2C6FA9CC-F248-11E8-B48F-1D18A9856A87
  last_name: Bollback
  orcid: 0000-0002-4624-4612
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
- first_name: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
citation:
  ama: Tomanek I, Grah R, Lagator M, et al. Gene amplification as a form of population-level
    gene expression regulation. <i>Nature Ecology &#38; Evolution</i>. 2020;4(4):612-625.
    doi:<a href="https://doi.org/10.1038/s41559-020-1132-7">10.1038/s41559-020-1132-7</a>
  apa: Tomanek, I., Grah, R., Lagator, M., Andersson, A. M. C., Bollback, J. P., Tkačik,
    G., &#38; Guet, C. C. (2020). Gene amplification as a form of population-level
    gene expression regulation. <i>Nature Ecology &#38; Evolution</i>. Springer Nature.
    <a href="https://doi.org/10.1038/s41559-020-1132-7">https://doi.org/10.1038/s41559-020-1132-7</a>
  chicago: Tomanek, Isabella, Rok Grah, M. Lagator, A. M. C. Andersson, Jonathan P
    Bollback, Gašper Tkačik, and Calin C Guet. “Gene Amplification as a Form of Population-Level
    Gene Expression Regulation.” <i>Nature Ecology &#38; Evolution</i>. Springer Nature,
    2020. <a href="https://doi.org/10.1038/s41559-020-1132-7">https://doi.org/10.1038/s41559-020-1132-7</a>.
  ieee: I. Tomanek <i>et al.</i>, “Gene amplification as a form of population-level
    gene expression regulation,” <i>Nature Ecology &#38; Evolution</i>, vol. 4, no.
    4. Springer Nature, pp. 612–625, 2020.
  ista: Tomanek I, Grah R, Lagator M, Andersson AMC, Bollback JP, Tkačik G, Guet CC.
    2020. Gene amplification as a form of population-level gene expression regulation.
    Nature Ecology &#38; Evolution. 4(4), 612–625.
  mla: Tomanek, Isabella, et al. “Gene Amplification as a Form of Population-Level
    Gene Expression Regulation.” <i>Nature Ecology &#38; Evolution</i>, vol. 4, no.
    4, Springer Nature, 2020, pp. 612–25, doi:<a href="https://doi.org/10.1038/s41559-020-1132-7">10.1038/s41559-020-1132-7</a>.
  short: I. Tomanek, R. Grah, M. Lagator, A.M.C. Andersson, J.P. Bollback, G. Tkačik,
    C.C. Guet, Nature Ecology &#38; Evolution 4 (2020) 612–625.
date_created: 2020-04-08T15:20:53Z
date_published: 2020-04-01T00:00:00Z
date_updated: 2026-07-23T22:30:51Z
day: '01'
ddc:
- '570'
department:
- _id: GaTk
- _id: CaGu
doi: 10.1038/s41559-020-1132-7
external_id:
  isi:
  - '000519008300005'
  pmid:
  - '32152532'
file:
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  success: 1
file_date_updated: 2020-10-09T09:56:01Z
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intvolume: '         4'
isi: 1
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language:
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month: '04'
oa: 1
oa_version: Submitted Version
page: 612-625
pmid: 1
project:
- _id: 267C84F4-B435-11E9-9278-68D0E5697425
  name: Biophysically realistic genotype-phenotype maps for regulatory networks
publication: Nature Ecology & Evolution
publication_identifier:
  issn:
  - 2397-334X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/how-to-thrive-without-gene-regulation/
  record:
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    status: public
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  - id: '8653'
    relation: used_in_publication
    status: public
scopus_import: '1'
status: public
title: Gene amplification as a form of population-level gene expression regulation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2020'
...
---
OA_place: publisher
_id: '8822'
abstract:
- lang: eng
  text: "Self-organization is a hallmark of plant development manifested e.g. by intricate
    leaf vein patterns, flexible formation of vasculature during organogenesis or
    its regeneration following wounding. Spontaneously arising channels transporting
    the phytohormone auxin, created by coordinated polar localizations of PIN-FORMED
    1 (PIN1) auxin exporter, provide positional cues for these as well as other plant
    patterning processes. To find regulators acting downstream of auxin and the TIR1/AFB
    auxin signaling pathway essential for PIN1 coordinated polarization during auxin
    canalization, we performed microarray experiments. Besides the known components
    of general PIN polarity maintenance, such as PID and PIP5K kinases, we identified
    and characterized a new regulator of auxin canalization, the transcription factor
    WRKY DNA-BINDING PROTEIN 23 (WRKY23).\r\nNext, we designed a subsequent microarray
    experiment to further uncover other molecular players, downstream of auxin-TIR1/AFB-WRKY23
    involved in the regulation of auxin-mediated PIN repolarization. We identified
    a novel and crucial part of the molecular machinery underlying auxin canalization.
    The auxin-regulated malectin-type receptor-like kinase CAMEL and the associated
    leucine-rich repeat receptor-like kinase CANAR target and directly phosphorylate
    PIN auxin transporters. camel and canar mutants are impaired in PIN1 subcellular
    trafficking and auxin-mediated repolarization leading to defects in auxin transport,
    ultimately to leaf venation and vasculature regeneration defects. Our results
    describe the CAMEL-CANAR receptor complex, which is required for auxin feed-back
    on its own transport and thus for coordinated tissue polarization during auxin
    canalization."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Jakub
  full_name: Hajny, Jakub
  id: 4800CC20-F248-11E8-B48F-1D18A9856A87
  last_name: Hajny
  orcid: 0000-0003-2140-7195
citation:
  ama: Hajny J. Identification and characterization of the molecular machinery of
    auxin-dependent canalization during vasculature formation and regeneration. 2020.
    doi:<a href="https://doi.org/10.15479/AT:ISTA:8822">10.15479/AT:ISTA:8822</a>
  apa: Hajny, J. (2020). <i>Identification and characterization of the molecular machinery
    of auxin-dependent canalization during vasculature formation and regeneration</i>.
    Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8822">https://doi.org/10.15479/AT:ISTA:8822</a>
  chicago: Hajny, Jakub. “Identification and Characterization of the Molecular Machinery
    of Auxin-Dependent Canalization during Vasculature Formation and Regeneration.”
    Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8822">https://doi.org/10.15479/AT:ISTA:8822</a>.
  ieee: J. Hajny, “Identification and characterization of the molecular machinery
    of auxin-dependent canalization during vasculature formation and regeneration,”
    Institute of Science and Technology Austria, 2020.
  ista: Hajny J. 2020. Identification and characterization of the molecular machinery
    of auxin-dependent canalization during vasculature formation and regeneration.
    Institute of Science and Technology Austria.
  mla: Hajny, Jakub. <i>Identification and Characterization of the Molecular Machinery
    of Auxin-Dependent Canalization during Vasculature Formation and Regeneration</i>.
    Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8822">10.15479/AT:ISTA:8822</a>.
  short: J. Hajny, Identification and Characterization of the Molecular Machinery
    of Auxin-Dependent Canalization during Vasculature Formation and Regeneration,
    Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-12-01T12:38:18Z
date_published: 2020-12-01T00:00:00Z
date_updated: 2026-06-18T19:02:05Z
day: '01'
ddc:
- '580'
degree_awarded: PhD
department:
- _id: JiFr
doi: 10.15479/AT:ISTA:8822
file:
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  date_updated: 2021-12-08T23:30:03Z
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month: '12'
oa: 1
oa_version: Published Version
page: '249'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
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    status: public
  - id: '7500'
    relation: part_of_dissertation
    status: public
  - id: '7427'
    relation: part_of_dissertation
    status: public
  - id: '191'
    relation: part_of_dissertation
    status: public
  - id: '6260'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
title: Identification and characterization of the molecular machinery of auxin-dependent
  canalization during vasculature formation and regeneration
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
OA_place: publisher
_id: '8653'
abstract:
- lang: eng
  text: "Mutations are the raw material of evolution and come in many different flavors.
    Point mutations change a single letter in the DNA sequence, while copy number
    mutations like duplications or deletions add or remove many letters of the DNA
    sequence simultaneously.  Each type of mutation exhibits specific properties like
    its rate of formation and reversal. \r\nGene expression is a fundamental phenotype
    that can be altered by both, point and copy number mutations. The following thesis
    is concerned with the dynamics of gene expression evolution and how it is affected
    by the properties exhibited by point and copy number mutations. Specifically,
    we are considering i) copy number mutations during adaptation to fluctuating environments
    and ii) the interaction of copy number and point mutations during adaptation to
    constant environments.  "
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Isabella
  full_name: Tomanek, Isabella
  id: 3981F020-F248-11E8-B48F-1D18A9856A87
  last_name: Tomanek
  orcid: 0000-0001-6197-363X
citation:
  ama: Tomanek I. The evolution of gene expression by copy number and point mutations.
    2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8653">10.15479/AT:ISTA:8653</a>
  apa: Tomanek, I. (2020). <i>The evolution of gene expression by copy number and
    point mutations</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8653">https://doi.org/10.15479/AT:ISTA:8653</a>
  chicago: Tomanek, Isabella. “The Evolution of Gene Expression by Copy Number and
    Point Mutations.” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8653">https://doi.org/10.15479/AT:ISTA:8653</a>.
  ieee: I. Tomanek, “The evolution of gene expression by copy number and point mutations,”
    Institute of Science and Technology Austria, 2020.
  ista: Tomanek I. 2020. The evolution of gene expression by copy number and point
    mutations. Institute of Science and Technology Austria.
  mla: Tomanek, Isabella. <i>The Evolution of Gene Expression by Copy Number and Point
    Mutations</i>. Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8653">10.15479/AT:ISTA:8653</a>.
  short: I. Tomanek, The Evolution of Gene Expression by Copy Number and Point Mutations,
    Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-10-13T13:02:33Z
date_published: 2020-10-13T00:00:00Z
date_updated: 2026-04-08T07:29:19Z
day: '13'
ddc:
- '576'
degree_awarded: PhD
department:
- _id: CaGu
doi: 10.15479/AT:ISTA:8653
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file_date_updated: 2021-10-20T22:30:03Z
has_accepted_license: '1'
keyword:
- duplication
- amplification
- promoter
- CNV
- AMGET
- experimental evolution
- Escherichia coli
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: '117'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
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    relation: research_data
    status: public
status: public
supervisor:
- first_name: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
title: The evolution of gene expression by copy number and point mutations
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
OA_place: publisher
_id: '8983'
abstract:
- lang: eng
  text: Metabolic adaptation is a critical feature of migrating cells. It tunes the
    metabolic programs of migrating cells to allow them to efficiently exert their
    crucial roles in development, inflammatory responses and tumor metastasis. Cell
    migration through physically challenging contexts requires energy. However, how
    the metabolic reprogramming that underlies in vivo cell invasion is controlled
    is still unanswered. In my PhD project, I identify a novel conserved metabolic
    shift in Drosophila melanogaster immune cells that by modulating their bioenergetic
    potential controls developmentally programmed tissue invasion. We show that this
    regulation requires a novel conserved nuclear protein, named Atossa. Atossa enhances
    the transcription of a set of proteins, including an RNA helicase Porthos and
    two metabolic enzymes, each of which increases the tissue invasion of leading
    Drosophila macrophages and can rescue the atossa mutant phenotype. Porthos selectively
    regulates the translational efficiency of a subset of mRNAs containing a 5’-UTR
    cis-regulatory TOP-like sequence. These 5’TOPL mRNA targets encode mitochondrial-related
    proteins, including subunits of mitochondrial oxidative phosphorylation (OXPHOS)
    components III and V and other metabolic-related proteins. Porthos powers up mitochondrial
    OXPHOS to engender a sufficient ATP supply, which is required for tissue invasion
    of leading macrophages. Atossa’s two vertebrate orthologs rescue the invasion
    defect. In my PhD project, I elucidate that Atossa displays a conserved developmental
    metabolic control to modulate metabolic capacities and the cellular energy state,
    through altered transcription and translation, to aid the tissue infiltration
    of leading cells into energy demanding barriers.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: E-Lib
- _id: CampIT
acknowledgement: Also, I would like to express my appreciation and thanks to the Bioimaging
  facility, LSF, GSO, library, and IT people at IST Austria.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Shamsi
  full_name: Emtenani, Shamsi
  id: 49D32318-F248-11E8-B48F-1D18A9856A87
  last_name: Emtenani
  orcid: 0000-0001-6981-6938
citation:
  ama: Emtenani S. Metabolic regulation of Drosophila macrophage tissue invasion.
    2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8983">10.15479/AT:ISTA:8983</a>
  apa: Emtenani, S. (2020). <i>Metabolic regulation of Drosophila macrophage tissue
    invasion</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8983">https://doi.org/10.15479/AT:ISTA:8983</a>
  chicago: Emtenani, Shamsi. “Metabolic Regulation of Drosophila Macrophage Tissue
    Invasion.” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8983">https://doi.org/10.15479/AT:ISTA:8983</a>.
  ieee: S. Emtenani, “Metabolic regulation of Drosophila macrophage tissue invasion,”
    Institute of Science and Technology Austria, 2020.
  ista: Emtenani S. 2020. Metabolic regulation of Drosophila macrophage tissue invasion.
    Institute of Science and Technology Austria.
  mla: Emtenani, Shamsi. <i>Metabolic Regulation of Drosophila Macrophage Tissue Invasion</i>.
    Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8983">10.15479/AT:ISTA:8983</a>.
  short: S. Emtenani, Metabolic Regulation of Drosophila Macrophage Tissue Invasion,
    Institute of Science and Technology Austria, 2020.
corr_author: '1'
date_created: 2020-12-30T15:41:26Z
date_published: 2020-12-30T00:00:00Z
date_updated: 2026-04-08T07:28:54Z
day: '30'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: DaSi
doi: 10.15479/AT:ISTA:8983
file:
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  checksum: ec2797ab7a6f253b35df0572b36d1b43
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  creator: semtenan
  date_created: 2020-12-30T15:34:01Z
  date_updated: 2021-12-31T23:30:04Z
  embargo: 2021-12-30
  file_id: '8984'
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  file_size: 10848175
  relation: main_file
- access_level: closed
  checksum: cc30e6608a9815414024cf548dff3b3a
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  date_created: 2020-12-30T15:37:36Z
  date_updated: 2021-12-31T23:30:04Z
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  file_id: '8985'
  file_name: Thesis_Shamsi_Emtenani_source file.pdf
  file_size: 10073648
  relation: source_file
file_date_updated: 2021-12-31T23:30:04Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '141'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '8557'
    relation: part_of_dissertation
    status: public
  - id: '6187'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Daria E
  full_name: Siekhaus, Daria E
  id: 3D224B9E-F248-11E8-B48F-1D18A9856A87
  last_name: Siekhaus
  orcid: 0000-0001-8323-8353
title: Metabolic regulation of Drosophila macrophage tissue invasion
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
_id: '8557'
abstract:
- lang: eng
  text: The infiltration of immune cells into tissues underlies the establishment
    of tissue resident macrophages, and responses to infections and tumors. Yet the
    mechanisms immune cells utilize to negotiate tissue barriers in living organisms
    are not well understood, and a role for cortical actin has not been examined.
    Here we find that the tissue invasion of Drosophila macrophages, also known as
    plasmatocytes or hemocytes, utilizes enhanced cortical F-actin levels stimulated
    by the Drosophila member of the fos proto oncogene transcription factor family
    (Dfos, Kayak). RNA sequencing analysis and live imaging show that Dfos enhances
    F-actin levels around the entire macrophage surface by increasing mRNA levels
    of the membrane spanning molecular scaffold tetraspanin TM4SF, and the actin cross-linking
    filamin Cheerio which are themselves required for invasion. Cortical F-actin levels
    are critical as expressing a dominant active form of Diaphanous, a actin polymerizing
    Formin, can rescue the Dfos Dominant Negative macrophage invasion defect. In vivo
    imaging shows that Dfos is required to enhance the efficiency of the initial phases
    of macrophage tissue entry. Genetic evidence argues that this Dfos-induced program
    in macrophages counteracts the constraint produced by the tension of surrounding
    tissues and buffers the mechanical properties of the macrophage nucleus from affecting
    tissue entry. We thus identify tuning the cortical actin cytoskeleton through
    Dfos as a key process allowing efficient forward movement of an immune cell into
    surrounding tissues.
acknowledged_ssus:
- _id: LifeSc
acknowledgement: 'We thank the following for their contributions: The Drosophila Genomics
  Resource Center supported by NIH grant 2P40OD010949-10A1 for plasmids, K. Brueckner.
  B. Stramer, M. Uhlirova, O. Schuldiner, the Bloomington Drosophila Stock Center
  supported by NIH grant P40OD018537 and the Vienna Drosophila Resource Center for
  fly stocks, FlyBase (Thurmond et al., 2019) for essential genomic information, and
  the BDGP in situ database for data (Tomancak et al., 2002, 2007). For antibodies,
  we thank the Developmental Studies Hybridoma Bank, which was created by the Eunice
  Kennedy Shriver National Institute of Child Health and Human Development of the
  NIH, and is maintained at the University of Iowa, as well as J. Zeitlinger for her
  generous gift of Dfos antibody. We thank the Vienna BioCenter Core Facilities for
  RNA sequencing and analysis and the Life Scientific Service Units at IST Austria
  for technical support and assistance with microscopy and FACS analysis. We thank
  C.P. Heisenberg, P. Martin, M. Sixt and Siekhaus group members for discussions and
  T.Hurd, A. Ratheesh and P. Rangan for comments on the manuscript. A.G. was supported
  by the Austrian Science Fund (FWF) grant DASI_FWF01_P29638S, D.E.S. by Marie Curie
  CIG 334077/IRTIM. M.S. is supported by the FWF, PhD program W1212 915 and the European
  Research Council (ERC) Advanced grant (ERC-2015-AdG TNT-Tumors 694883). S.W. is
  supported by an OEAW, DOC fellowship.'
article_processing_charge: No
author:
- first_name: Vera
  full_name: Belyaeva, Vera
  id: 47F080FE-F248-11E8-B48F-1D18A9856A87
  last_name: Belyaeva
- first_name: Stephanie
  full_name: Wachner, Stephanie
  id: 2A95E7B0-F248-11E8-B48F-1D18A9856A87
  last_name: Wachner
- first_name: Igor
  full_name: Gridchyn, Igor
  id: 4B60654C-F248-11E8-B48F-1D18A9856A87
  last_name: Gridchyn
  orcid: 0000-0002-1807-1929
- first_name: Markus
  full_name: Linder, Markus
  last_name: Linder
- first_name: Shamsi
  full_name: Emtenani, Shamsi
  id: 49D32318-F248-11E8-B48F-1D18A9856A87
  last_name: Emtenani
  orcid: 0000-0001-6981-6938
- first_name: Attila
  full_name: György, Attila
  id: 3BCEDBE0-F248-11E8-B48F-1D18A9856A87
  last_name: György
  orcid: 0000-0002-1819-198X
- first_name: Maria
  full_name: Sibilia, Maria
  last_name: Sibilia
- first_name: Daria E
  full_name: Siekhaus, Daria E
  id: 3D224B9E-F248-11E8-B48F-1D18A9856A87
  last_name: Siekhaus
  orcid: 0000-0001-8323-8353
citation:
  ama: Belyaeva V, Wachner S, Gridchyn I, et al. Cortical actin properties controlled
    by Drosophila Fos aid macrophage infiltration against surrounding tissue resistance.
    <i>bioRxiv</i>. doi:<a href="https://doi.org/10.1101/2020.09.18.301481">10.1101/2020.09.18.301481</a>
  apa: Belyaeva, V., Wachner, S., Gridchyn, I., Linder, M., Emtenani, S., György,
    A., … Siekhaus, D. E. (n.d.). Cortical actin properties controlled by Drosophila
    Fos aid macrophage infiltration against surrounding tissue resistance. <i>bioRxiv</i>.
    <a href="https://doi.org/10.1101/2020.09.18.301481">https://doi.org/10.1101/2020.09.18.301481</a>
  chicago: Belyaeva, Vera, Stephanie Wachner, Igor Gridchyn, Markus Linder, Shamsi
    Emtenani, Attila György, Maria Sibilia, and Daria E Siekhaus. “Cortical Actin
    Properties Controlled by Drosophila Fos Aid Macrophage Infiltration against Surrounding
    Tissue Resistance.” <i>BioRxiv</i>, n.d. <a href="https://doi.org/10.1101/2020.09.18.301481">https://doi.org/10.1101/2020.09.18.301481</a>.
  ieee: V. Belyaeva <i>et al.</i>, “Cortical actin properties controlled by Drosophila
    Fos aid macrophage infiltration against surrounding tissue resistance,” <i>bioRxiv</i>.
    .
  ista: Belyaeva V, Wachner S, Gridchyn I, Linder M, Emtenani S, György A, Sibilia
    M, Siekhaus DE. Cortical actin properties controlled by Drosophila Fos aid macrophage
    infiltration against surrounding tissue resistance. bioRxiv, <a href="https://doi.org/10.1101/2020.09.18.301481">10.1101/2020.09.18.301481</a>.
  mla: Belyaeva, Vera, et al. “Cortical Actin Properties Controlled by Drosophila
    Fos Aid Macrophage Infiltration against Surrounding Tissue Resistance.” <i>BioRxiv</i>,
    doi:<a href="https://doi.org/10.1101/2020.09.18.301481">10.1101/2020.09.18.301481</a>.
  short: V. Belyaeva, S. Wachner, I. Gridchyn, M. Linder, S. Emtenani, A. György,
    M. Sibilia, D.E. Siekhaus, BioRxiv (n.d.).
corr_author: '1'
date_created: 2020-09-23T09:36:47Z
date_published: 2020-09-18T00:00:00Z
date_updated: 2026-07-23T22:30:52Z
day: '18'
department:
- _id: DaSi
- _id: JoCs
doi: 10.1101/2020.09.18.301481
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2020.09.18.301481
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 253B6E48-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29638
  name: The role of Drosophila TNF alpha in immune cell invasion
- _id: 2536F660-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '334077'
  name: Investigating the role of transporters in invasive migration through junctions
- _id: 26199CA4-B435-11E9-9278-68D0E5697425
  grant_number: '24800'
  name: Implications of a TGFÎ²/Dpp-activated subpopulation for Drosophila macrophage
    migration
publication: bioRxiv
publication_status: draft
related_material:
  record:
  - id: '10614'
    relation: later_version
    status: public
  - id: '8983'
    relation: dissertation_contains
    status: public
status: public
title: Cortical actin properties controlled by Drosophila Fos aid macrophage infiltration
  against surrounding tissue resistance
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
