---
OA_place: repository
OA_type: green
_id: '21994'
abstract:
- lang: eng
  text: Adaptive plant development is orchestrated, among others, by directional,
    intercellular transport of the phytohormone auxin. Self-organizing development,
    such as flexible vasculature formation, depends on so-called auxin canalization,
    manifested by the gradual formation of auxin transport channels through feedback
    between auxin signalling and transport. Herein, we identify MAKR6 as an important,
    novel component in this feedback. MAKR6 expression accumulates strongly in vascular
    cells and is tightly regulated by auxin via the Aux/IAA-ARF-WRKY23 transcriptional
    network. MAKR6 is required for auxin canalization-dependent processes, including
    leaf venation, vasculature regeneration, and de novo auxin channel formation from
    local auxin sources. Mechanistically, MAKR6 interacts with the PIN1 auxin transporter,
    modulating its trafficking and polarization. MAKR6 also associates with and integrates
    two key receptor-like kinase complexes involved in canalization, TMK1/4 and the
    CAMEL-CANAR. Together, our study establishes MAKR6 as a multifaceted regulator
    that couples transcriptional auxin signalling to PIN1 repolarization and coordinates
    multiple RLK-mediated signalling pathways during canalization. This provides mechanistic
    insights into auxin canalization and exemplifies a framework for exploring similar
    regulatory nodes in other developmental contexts.
acknowledgement: 'We would like to thank Dr. Yvon Jaillais (ENS, Lyon) for sharing
  MAKR2 materials. This research was supported by the Scientific Service Units (SSU)
  of ISTA through resources provided by the Imaging & Optics Facility (IOF) and the
  Lab Support Facility (LSF). The research in the Friml group leading to these results
  was funded by the European Research Council (ERC): 101142681 CYNIPS; and the Austrian
  Science Fund (FWF): I 6123-B and P 37051-B. Ewa Mazur was supported by the National
  Science Centre (NCN), Poland, under the OPUS call in the WEAVE programme: 2021/43/I/NZ1/01835.'
article_processing_charge: No
author:
- first_name: Zengxiang
  full_name: Ge, Zengxiang
  id: f43371a3-09ff-11eb-8013-bd0c6a2f6de8
  last_name: Ge
  orcid: 0000-0001-9381-3577
- first_name: Lilla
  full_name: Koczka, Lilla
  last_name: Koczka
- first_name: Ewa
  full_name: Mazur, Ewa
  last_name: Mazur
- first_name: Gergely
  full_name: Molnar, Gergely
  id: 34F1AF46-F248-11E8-B48F-1D18A9856A87
  last_name: Molnar
- first_name: Dmitrii
  full_name: Vladimirtsev, Dmitrii
  id: 60466724-5355-11ee-ae5a-fa55e8f99c3d
  last_name: Vladimirtsev
- first_name: Nada
  full_name: Kassem, Nada
  last_name: Kassem
- first_name: Sara
  full_name: Ait Ikene, Sara
  id: 6a0bb896-6bad-11f1-9bef-906e9eb76034
  last_name: Ait Ikene
- first_name: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Ge Z, Koczka L, Mazur E, et al. MAKR6 integrates TMK and CAMEL/CANAR signalling
    for auxin canalization in Arabidopsis. <i>bioRxiv</i>. doi:<a href="https://doi.org/10.1101/2025.10.07.680881">10.1101/2025.10.07.680881</a>
  apa: Ge, Z., Koczka, L., Mazur, E., Molnar, G., Vladimirtsev, D., Kassem, N., …
    Friml, J. (n.d.). MAKR6 integrates TMK and CAMEL/CANAR signalling for auxin canalization
    in Arabidopsis. <i>bioRxiv</i>. <a href="https://doi.org/10.1101/2025.10.07.680881">https://doi.org/10.1101/2025.10.07.680881</a>
  chicago: Ge, Zengxiang, Lilla Koczka, Ewa Mazur, Gergely Molnar, Dmitrii Vladimirtsev,
    Nada Kassem, Sara Ait Ikene, Lukas Fiedler, and Jiří Friml. “MAKR6 Integrates
    TMK and CAMEL/CANAR Signalling for Auxin Canalization in Arabidopsis.” <i>BioRxiv</i>,
    n.d. <a href="https://doi.org/10.1101/2025.10.07.680881">https://doi.org/10.1101/2025.10.07.680881</a>.
  ieee: Z. Ge <i>et al.</i>, “MAKR6 integrates TMK and CAMEL/CANAR signalling for
    auxin canalization in Arabidopsis,” <i>bioRxiv</i>. .
  ista: Ge Z, Koczka L, Mazur E, Molnar G, Vladimirtsev D, Kassem N, Ait Ikene S,
    Fiedler L, Friml J. MAKR6 integrates TMK and CAMEL/CANAR signalling for auxin
    canalization in Arabidopsis. bioRxiv, <a href="https://doi.org/10.1101/2025.10.07.680881">10.1101/2025.10.07.680881</a>.
  mla: Ge, Zengxiang, et al. “MAKR6 Integrates TMK and CAMEL/CANAR Signalling for
    Auxin Canalization in Arabidopsis.” <i>BioRxiv</i>, doi:<a href="https://doi.org/10.1101/2025.10.07.680881">10.1101/2025.10.07.680881</a>.
  short: Z. Ge, L. Koczka, E. Mazur, G. Molnar, D. Vladimirtsev, N. Kassem, S. Ait
    Ikene, L. Fiedler, J. Friml, BioRxiv (n.d.).
corr_author: '1'
date_created: 2026-06-13T16:57:07Z
date_published: 2026-05-30T00:00:00Z
date_updated: 2026-06-19T07:14:01Z
day: '30'
ddc:
- '580'
department:
- _id: GradSch
- _id: JiFr
doi: 10.1101/2025.10.07.680881
fulldoi: https://doi.org/10.1101/2025.10.07.680881
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2025.10.07.680881
month: '05'
oa: 1
oa_version: Preprint
project:
- _id: 8f347782-16d5-11f0-9cad-8c19706ee739
  grant_number: '101142681'
  name: Cyclic nucleotides as second messengers in plants
- _id: bd76d395-d553-11ed-ba76-f678c14f9033
  grant_number: I06123
  name: Peptide receptors for auxin canalization in Arabidopsis
- _id: 7bcece63-9f16-11ee-852c-ae94e099eeb6
  grant_number: P37051
  name: Guanylate cyclase activity of TIR1/AFBs auxin receptors
publication: bioRxiv
publication_status: submitted
scopus_import: '1'
status: public
title: MAKR6 integrates TMK and CAMEL/CANAR signalling for auxin canalization in Arabidopsis
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: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20187'
abstract:
- lang: eng
  text: Very long-chain fatty acids (VLCFAs), being constituents of different types
    of lipids, are critical factors in plant development, presumably due to their
    impact on the endomembrane system. The VLCFAs are synthesized in the endoplasmic
    reticulum by a heterotetrameric enzymatic complex including β-ketoacyl CoA reductase
    1 (KCR1), whose mutant is lethal. Here, we describe the ectopic shoot meristems
    (esm) mutant, a viable kcr1 allele presumably affecting surface properties of
    the KCR1 protein. This kcr1-2 mutant shows reduced fatty acyl elongation that
    impacts VLCFAs. The kcr1-2 plants show severe defects during different stages
    of development, which all correlate with defects in polar localization and subcellular
    trafficking of PIN auxin transporters and resulting asymmetric auxin distribution.
    Detailed analysis of KCR1 expression and patterning defects in kcr1-2 suggests
    that KCR1 plays a role in delineating boundaries around meristematic and specialized
    differentiating tissues, including root and shoot meristems, initiating lateral
    roots, lateral root primordia, and trichomes. In these contexts, KCR1-produced
    VLCFAs may act in a non-cell-autonomous manner. Viable kcr1-2 represents a useful
    tool to study VLCFA roles in plant development and highlights VLCFAs as critical
    developmental factors at the interface of cell polarity and tissue development.
acknowledged_ssus:
- _id: Bio
- _id: EM-Fac
- _id: LifeSc
acknowledgement: "We gratefully acknowledge the Imaging and Optics, Electron Microscopy
  (especially Vanessa Zheden for technical assistance) and Life Science (in particular
  Dorota Jaworska) facilities at ISTA for their continuous support. Authors would
  like to thank Michelle Gallei for advice during the generation of the transgenic
  lines; Zuzana Gelová for advice with DR5rev::GFP analyses; Ivan Kulich for help
  and advice on trichome imaging; Aline Monzer for generous help with hypocotyl and
  root analyses; Shutang Tan for help with the NGS data analysis; and Milan Župunski
  for advice on abiotic stress experiments. We would like to thank Dolf Weijers for
  the SOSEKI (SOK) marker line seeds. This work has benefited from the support of
  IJPB's Plant Observatory platforms P0-Chem.\r\n\r\nThis work was supported by Austrian
  Science Fund (FWF) (I 6123-B) and Science and Technology Department of Jiangxi Province
  (20223BCJ25037) to Huibin Han. The IJPB benefits from the support of Saclay Plant
  Sciences-SPS (ANR-17-EUR-0007)."
article_number: e70396
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: David
  full_name: Babic, David
  id: db566d23-f6e0-11ea-865d-e6f270e968e7
  last_name: Babic
- first_name: Rashed
  full_name: Abualia, Rashed
  id: 4827E134-F248-11E8-B48F-1D18A9856A87
  last_name: Abualia
  orcid: 0000-0002-9357-9415
- first_name: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Linlin
  full_name: Qi, Linlin
  id: 44B04502-A9ED-11E9-B6FC-583AE6697425
  last_name: Qi
  orcid: 0000-0001-5187-8401
- first_name: Frédérique
  full_name: Tellier, Frédérique
  last_name: Tellier
- first_name: Adrijana
  full_name: Smoljan, Adrijana
  id: cced8a85-223e-11ed-af04-b0596c55053b
  last_name: Smoljan
- first_name: Hana
  full_name: Rakusova, Hana
  id: 4CAAA450-78D2-11EA-8E57-B40A396E08BA
  last_name: Rakusova
- first_name: Petr
  full_name: Valošek, Petr
  id: 3CDB6F94-F248-11E8-B48F-1D18A9856A87
  last_name: Valošek
- first_name: Huibin
  full_name: Han, Huibin
  id: 31435098-F248-11E8-B48F-1D18A9856A87
  last_name: Han
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: Jean Denis
  full_name: Faure, Jean Denis
  last_name: Faure
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Babic D, Abualia R, Fiedler L, et al. Biosynthesis of very long-chain fatty
    acids is required for Arabidopsis auxin-mediated embryonic and post-embryonic
    development. <i>Plant Journal</i>. 2025;123(3). doi:<a href="https://doi.org/10.1111/tpj.70396">10.1111/tpj.70396</a>
  apa: Babic, D., Abualia, R., Fiedler, L., Qi, L., Tellier, F., Smoljan, A., … Friml,
    J. (2025). Biosynthesis of very long-chain fatty acids is required for Arabidopsis
    auxin-mediated embryonic and post-embryonic development. <i>Plant Journal</i>.
    Wiley. <a href="https://doi.org/10.1111/tpj.70396">https://doi.org/10.1111/tpj.70396</a>
  chicago: Babic, David, Rashed Abualia, Lukas Fiedler, Linlin Qi, Frédérique Tellier,
    Adrijana Smoljan, Hana Rakusova, et al. “Biosynthesis of Very Long-Chain Fatty
    Acids Is Required for Arabidopsis Auxin-Mediated Embryonic and Post-Embryonic
    Development.” <i>Plant Journal</i>. Wiley, 2025. <a href="https://doi.org/10.1111/tpj.70396">https://doi.org/10.1111/tpj.70396</a>.
  ieee: D. Babic <i>et al.</i>, “Biosynthesis of very long-chain fatty acids is required
    for Arabidopsis auxin-mediated embryonic and post-embryonic development,” <i>Plant
    Journal</i>, vol. 123, no. 3. Wiley, 2025.
  ista: Babic D, Abualia R, Fiedler L, Qi L, Tellier F, Smoljan A, Rakusova H, Valošek
    P, Han H, Benková E, Faure JD, Friml J. 2025. Biosynthesis of very long-chain
    fatty acids is required for Arabidopsis auxin-mediated embryonic and post-embryonic
    development. Plant Journal. 123(3), e70396.
  mla: Babic, David, et al. “Biosynthesis of Very Long-Chain Fatty Acids Is Required
    for Arabidopsis Auxin-Mediated Embryonic and Post-Embryonic Development.” <i>Plant
    Journal</i>, vol. 123, no. 3, e70396, Wiley, 2025, doi:<a href="https://doi.org/10.1111/tpj.70396">10.1111/tpj.70396</a>.
  short: D. Babic, R. Abualia, L. Fiedler, L. Qi, F. Tellier, A. Smoljan, H. Rakusova,
    P. Valošek, H. Han, E. Benková, J.D. Faure, J. Friml, Plant Journal 123 (2025).
corr_author: '1'
date_created: 2025-08-17T22:01:36Z
date_published: 2025-08-01T00:00:00Z
date_updated: 2026-04-07T11:52:02Z
day: '01'
ddc:
- '580'
department:
- _id: EvBe
- _id: JiFr
- _id: GradSch
doi: 10.1111/tpj.70396
external_id:
  isi:
  - '001547884300001'
  pmid:
  - '40782342'
file:
- access_level: open_access
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  creator: dernst
  date_created: 2025-09-01T14:09:31Z
  date_updated: 2025-09-01T14:09:31Z
  file_id: '20264'
  file_name: 2025_PlantJournal_Babic.pdf
  file_size: 5791111
  relation: main_file
  success: 1
file_date_updated: 2025-09-01T14:09:31Z
fulldoi: https://doi.org/10.1111/tpj.70396
has_accepted_license: '1'
intvolume: '       123'
isi: 1
issue: '3'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: bd76d395-d553-11ed-ba76-f678c14f9033
  grant_number: I06123
  name: Peptide receptors for auxin canalization in Arabidopsis
publication: Plant Journal
publication_identifier:
  eissn:
  - 1365-313X
  issn:
  - 0960-7412
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
  record:
  - id: '20362'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Biosynthesis of very long-chain fatty acids is required for Arabidopsis auxin-mediated
  embryonic and post-embryonic development
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 123
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20656'
abstract:
- lang: eng
  text: Phytohormone auxin and its directional transport mediate much of the remarkably
    plastic development of higher plants. Positive feedback between auxin signaling
    and transport is a prerequisite for (1) self-organizing processes, including vascular
    tissue formation, and (2) directional growth responses such as gravitropism. Here,
    we identify a mechanism by which auxin signaling directly targets PIN auxin transporters.
    Via the cell-surface AUXIN-BINDING PROTEIN1 (ABP1)-TRANSMEMBRANE KINASE 1 (TMK1)
    receptor module, auxin rapidly induces phosphorylation and thus stabilization
    of PIN2. Following gravistimulation, initial auxin asymmetry activates autophosphorylation
    of the TMK1 kinase. This induces TMK1 interaction with and phosphorylation of
    PIN2, stabilizing PIN2 at the lower root side, thus reinforcing asymmetric auxin
    flow for root bending. Upstream of TMK1 in this regulation, ABP1 acts redundantly
    with the root-expressed ABP1-LIKE 3 (ABL3) auxin receptor. Such positive feedback
    between cell-surface auxin signaling and PIN-mediated polar auxin transport is
    fundamental for robust root gravitropism and presumably for other self-organizing
    developmental phenomena.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
acknowledgement: We gratefully acknowledge Tongda Xu for experimental, material, and
  conceptual support. We thank William Gray for providing material, Nataliia Gnyliukh
  and Ema Cervenova for help with manuscript preparation, and Julia Schmid for help
  with cloning. We thank Dolf Weijers, Mark Roosjen, and Andre Kuhn for discussions
  and support with phospho-proteomic analyses. We thank the Bioimaging and Life Science
  facilities at the Institute of Science and Technology Austria (ISTA) for their excellent
  service and assistance. The research leading to these results has received funding
  from the European Union (ERC, CYNIPS, 101142681) and Austrian Science Fund (FWF;
  I 6123-B) to J.F., and Y.J. was funded by ERC no. 3363360-APPL under FP/2007-2013.
  L.R. was supported by the FP7-PEOPLE-2011-COFUND ISTFELLOW program (IC1023FELL01)
  and the European Molecular Biology Organization (EMBO) long-term postdoctoral fellowship
  (ALTF 985-2016). S.T. was supported by the National Natural Science Foundation of
  China (32321001, 32570366). The work of J.H. was supported by the project JG_2024_003
  implemented within the Palacký University Young Researcher Grant.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- 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: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Minxia
  full_name: Zou, Minxia
  id: 5c243f41-03f3-11ec-841c-96faf48a7ef9
  last_name: Zou
- first_name: Caterina
  full_name: Giannini, Caterina
  id: e3fdddd5-f6e0-11ea-865d-ca99ee6367f4
  last_name: Giannini
- first_name: Aline
  full_name: Monzer, Aline
  id: 2DB5D88C-D7B3-11E9-B8FD-7907E6697425
  last_name: Monzer
- first_name: Dmitrii
  full_name: Vladimirtsev, Dmitrii
  id: 60466724-5355-11ee-ae5a-fa55e8f99c3d
  last_name: Vladimirtsev
- first_name: Marek
  full_name: Randuch, Marek
  id: 6ac4636d-15b2-11ec-abd3-fb8df79972ae
  last_name: Randuch
- first_name: Yongfan
  full_name: Yu, Yongfan
  last_name: Yu
- first_name: Zuzana
  full_name: Gelová, Zuzana
  id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
  last_name: Gelová
  orcid: 0000-0003-4783-1752
- first_name: Inge
  full_name: Verstraeten, Inge
  id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
  last_name: Verstraeten
  orcid: 0000-0001-7241-2328
- first_name: Jakub
  full_name: Hajny, Jakub
  id: 4800CC20-F248-11E8-B48F-1D18A9856A87
  last_name: Hajny
  orcid: 0000-0003-2140-7195
- first_name: Meng
  full_name: Chen, Meng
  last_name: Chen
- first_name: Shutang
  full_name: Tan, Shutang
  id: 2DE75584-F248-11E8-B48F-1D18A9856A87
  last_name: Tan
  orcid: 0000-0002-0471-8285
- first_name: Lukas
  full_name: Hörmayer, Lukas
  id: 2EEE7A2A-F248-11E8-B48F-1D18A9856A87
  last_name: Hörmayer
  orcid: 0000-0001-8295-2926
- first_name: Lanxin
  full_name: Li, Lanxin
  id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0002-5607-272X
- first_name: Maria Mar
  full_name: Marques-Bueno, Maria Mar
  last_name: Marques-Bueno
- first_name: Zainab
  full_name: Quddoos, Zainab
  id: 32ff3c64-04a0-11f0-a50f-d0c45bfac466
  last_name: Quddoos
- first_name: Gergely
  full_name: Molnar, Gergely
  id: 34F1AF46-F248-11E8-B48F-1D18A9856A87
  last_name: Molnar
- first_name: Ivan
  full_name: Kulich, Ivan
  id: 57a1567c-8314-11eb-9063-c9ddc3451a54
  last_name: Kulich
- first_name: Yvon
  full_name: Jaillais, Yvon
  last_name: Jaillais
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Rodriguez Solovey L, Fiedler L, Zou M, et al. ABP1/ABL3-TMK1 cell-surface auxin
    signaling targets PIN2-mediated auxin fluxes for root gravitropism. <i>Cell</i>.
    2025;188(22):6138-6150.e17. doi:<a href="https://doi.org/10.1016/j.cell.2025.08.026">10.1016/j.cell.2025.08.026</a>
  apa: Rodriguez Solovey, L., Fiedler, L., Zou, M., Giannini, C., Monzer, A., Vladimirtsev,
    D., … Friml, J. (2025). ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated
    auxin fluxes for root gravitropism. <i>Cell</i>. Elsevier. <a href="https://doi.org/10.1016/j.cell.2025.08.026">https://doi.org/10.1016/j.cell.2025.08.026</a>
  chicago: Rodriguez Solovey, Lesia, Lukas Fiedler, Minxia Zou, Caterina Giannini,
    Aline Monzer, Dmitrii Vladimirtsev, Marek Randuch, et al. “ABP1/ABL3-TMK1 Cell-Surface
    Auxin Signaling Targets PIN2-Mediated Auxin Fluxes for Root Gravitropism.” <i>Cell</i>.
    Elsevier, 2025. <a href="https://doi.org/10.1016/j.cell.2025.08.026">https://doi.org/10.1016/j.cell.2025.08.026</a>.
  ieee: L. Rodriguez Solovey <i>et al.</i>, “ABP1/ABL3-TMK1 cell-surface auxin signaling
    targets PIN2-mediated auxin fluxes for root gravitropism,” <i>Cell</i>, vol. 188,
    no. 22. Elsevier, p. 6138–6150.e17, 2025.
  ista: Rodriguez Solovey L, Fiedler L, Zou M, Giannini C, Monzer A, Vladimirtsev
    D, Randuch M, Yu Y, Gelová Z, Verstraeten I, Hajny J, Chen M, Tan S, Hörmayer
    L, Li L, Marques-Bueno MM, Quddoos Z, Molnar G, Kulich I, Jaillais Y, Friml J.
    2025. ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated auxin
    fluxes for root gravitropism. Cell. 188(22), 6138–6150.e17.
  mla: Rodriguez Solovey, Lesia, et al. “ABP1/ABL3-TMK1 Cell-Surface Auxin Signaling
    Targets PIN2-Mediated Auxin Fluxes for Root Gravitropism.” <i>Cell</i>, vol. 188,
    no. 22, Elsevier, 2025, p. 6138–6150.e17, doi:<a href="https://doi.org/10.1016/j.cell.2025.08.026">10.1016/j.cell.2025.08.026</a>.
  short: L. Rodriguez Solovey, L. Fiedler, M. Zou, C. Giannini, A. Monzer, D. Vladimirtsev,
    M. Randuch, Y. Yu, Z. Gelová, I. Verstraeten, J. Hajny, M. Chen, S. Tan, L. Hörmayer,
    L. Li, M.M. Marques-Bueno, Z. Quddoos, G. Molnar, I. Kulich, Y. Jaillais, J. Friml,
    Cell 188 (2025) 6138–6150.e17.
corr_author: '1'
date_created: 2025-11-19T09:44:31Z
date_published: 2025-10-30T00:00:00Z
date_updated: 2026-07-06T12:51:13Z
day: '30'
ddc:
- '580'
department:
- _id: JiFr
- _id: XiFe
doi: 10.1016/j.cell.2025.08.026
ec_funded: 1
external_id:
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  - '001616077900005'
  pmid:
  - '41043433'
file:
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fulldoi: https://doi.org/10.1016/j.cell.2025.08.026
has_accepted_license: '1'
intvolume: '       188'
isi: 1
issue: '22'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 6138-6150.e17
pmid: 1
project:
- _id: 8f347782-16d5-11f0-9cad-8c19706ee739
  grant_number: '101142681'
  name: Cyclic nucleotides as second messengers in plants
- _id: bd76d395-d553-11ed-ba76-f678c14f9033
  grant_number: I06123
  name: Peptide receptors for auxin canalization in Arabidopsis
- _id: 26060676-B435-11E9-9278-68D0E5697425
  grant_number: ALTF 985-2016
  name: Cell surface receptor complexes for auxin signaling in plants
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication: Cell
publication_identifier:
  issn:
  - 0092-8674
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '19399'
    relation: earlier_version
    status: public
status: public
title: ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated auxin fluxes
  for root gravitropism
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: 188
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '19399'
abstract:
- lang: eng
  text: Phytohormone auxin and its directional transport mediate much of the remarkably
    plastic development of higher plants. Positive feedback between auxin signaling
    and transport is a key prerequisite for (i) self-organizing processes including
    vascular tissue formation and (ii) directional growth responses such as gravitropism.
    Here we identify a mechanism, by which auxin signaling directly targets PIN auxin
    transporters. Via the cell-surface ABP1-TMK1 receptor module, auxin rapidly induces
    phosphorylation and thus stabilization of PIN2. Following gravistimulation, initial
    auxin asymmetry activates autophosphorylation of the TMK1 kinase. This induces
    TMK1 interaction with and phosphorylation of PIN2, stabilizing PIN2 at the lower
    root side, thus reinforcing asymmetric auxin flow for root bending. Upstream of
    TMK1 in this regulation, ABP1 acts redundantly with the root-expressed ABP1-LIKE
    auxin receptor ABL3. Such positive feedback between cell-surface auxin signaling
    and PIN-mediated polar auxin transport is fundamental for robust root gravitropism
    and presumably also for other self-organizing developmental phenomena.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
acknowledgement: 'We thank W. Gray for providing material; N. Gnyliukh and E. Cervenova
  for help with manuscript preparation; J. Schmid for help with cloning. We thank
  Dolf Weijers, Mark Roosjen, and Andre Kuhn for discussions and support with phospho-proteomic
  analyses. We thank the Bioimaging and Life Science facilities at ISTA for their
  excellent service and assistance. The research leading to these results has received
  funding from the European Research Council (ERC) under the European Union’s Horizon
  2020 research and innovation program grant agreement No 742985 and Austrian Science
  Fund (FWF): I3630-775 B25 to J.F; National Natural Science Foundation of China (Grant
  32130010, 31422008), start-up funds from FAFU to T.X., Y.J. was funded by ERC no.
  3363360-APPL under FP/2007-2013. L.R. was supported by FP7-PEOPLE-2011-COFUND ISTFELLOW
  program (IC1023FELL01) and the European Molecular Biology Organization (EMBO) long-term
  postdoctoral fellowship (ALTF 985- 2016). S.T. was supported by the National Natural
  Science Foundation of China (32321001).'
article_processing_charge: No
author:
- 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: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Minxia
  full_name: Zou, Minxia
  id: 5c243f41-03f3-11ec-841c-96faf48a7ef9
  last_name: Zou
- first_name: Caterina
  full_name: Giannini, Caterina
  id: e3fdddd5-f6e0-11ea-865d-ca99ee6367f4
  last_name: Giannini
- first_name: Aline
  full_name: Monzer, Aline
  id: 2DB5D88C-D7B3-11E9-B8FD-7907E6697425
  last_name: Monzer
- first_name: Dmitrii
  full_name: Vladimirtsev, Dmitrii
  id: 60466724-5355-11ee-ae5a-fa55e8f99c3d
  last_name: Vladimirtsev
- first_name: Marek
  full_name: Randuch, Marek
  id: 6ac4636d-15b2-11ec-abd3-fb8df79972ae
  last_name: Randuch
- first_name: Yongfan
  full_name: Yu, Yongfan
  last_name: Yu
- first_name: Zuzana
  full_name: Gelová, Zuzana
  id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
  last_name: Gelová
  orcid: 0000-0003-4783-1752
- first_name: Inge
  full_name: Verstraeten, Inge
  id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
  last_name: Verstraeten
  orcid: 0000-0001-7241-2328
- first_name: Jakub
  full_name: Hajny, Jakub
  id: 4800CC20-F248-11E8-B48F-1D18A9856A87
  last_name: Hajny
  orcid: 0000-0003-2140-7195
- first_name: Meng
  full_name: Chen, Meng
  last_name: Chen
- first_name: Shutang
  full_name: Tan, Shutang
  id: 2DE75584-F248-11E8-B48F-1D18A9856A87
  last_name: Tan
  orcid: 0000-0002-0471-8285
- first_name: Lukas
  full_name: Hörmayer, Lukas
  id: 2EEE7A2A-F248-11E8-B48F-1D18A9856A87
  last_name: Hörmayer
  orcid: 0000-0001-8295-2926
- first_name: Lanxin
  full_name: Li, Lanxin
  id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0002-5607-272X
- first_name: Maria Mar
  full_name: Marques-Bueno, Maria Mar
  last_name: Marques-Bueno
- first_name: Zainab
  full_name: Quddoos, Zainab
  id: 32ff3c64-04a0-11f0-a50f-d0c45bfac466
  last_name: Quddoos
- first_name: Gergely
  full_name: Molnar, Gergely
  id: 34F1AF46-F248-11E8-B48F-1D18A9856A87
  last_name: Molnar
- first_name: Tongda
  full_name: Xu, Tongda
  last_name: Xu
- first_name: Ivan
  full_name: Kulich, Ivan
  id: 57a1567c-8314-11eb-9063-c9ddc3451a54
  last_name: Kulich
- first_name: Yvon
  full_name: Jaillais, Yvon
  last_name: Jaillais
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Rodriguez Solovey L, Fiedler L, Zou M, et al. ABP1/ABL3-TMK1 cell-surface auxin
    signaling directly targets PIN2-mediated auxin fluxes for root gravitropism. <i>bioRxiv</i>.
    doi:<a href="https://doi.org/10.1101/2022.11.30.518503">10.1101/2022.11.30.518503</a>
  apa: Rodriguez Solovey, L., Fiedler, L., Zou, M., Giannini, C., Monzer, A., Vladimirtsev,
    D., … Friml, J. (n.d.). ABP1/ABL3-TMK1 cell-surface auxin signaling directly targets
    PIN2-mediated auxin fluxes for root gravitropism. <i>bioRxiv</i>. <a href="https://doi.org/10.1101/2022.11.30.518503">https://doi.org/10.1101/2022.11.30.518503</a>
  chicago: Rodriguez Solovey, Lesia, Lukas Fiedler, Minxia Zou, Caterina Giannini,
    Aline Monzer, Dmitrii Vladimirtsev, Marek Randuch, et al. “ABP1/ABL3-TMK1 Cell-Surface
    Auxin Signaling Directly Targets PIN2-Mediated Auxin Fluxes for Root Gravitropism.”
    <i>BioRxiv</i>, n.d. <a href="https://doi.org/10.1101/2022.11.30.518503">https://doi.org/10.1101/2022.11.30.518503</a>.
  ieee: L. Rodriguez Solovey <i>et al.</i>, “ABP1/ABL3-TMK1 cell-surface auxin signaling
    directly targets PIN2-mediated auxin fluxes for root gravitropism,” <i>bioRxiv</i>.
    .
  ista: Rodriguez Solovey L, Fiedler L, Zou M, Giannini C, Monzer A, Vladimirtsev
    D, Randuch M, Yu Y, Gelová Z, Verstraeten I, Hajny J, Chen M, Tan S, Hörmayer
    L, Li L, Marques-Bueno MM, Quddoos Z, Molnar G, Xu T, Kulich I, Jaillais Y, Friml
    J. ABP1/ABL3-TMK1 cell-surface auxin signaling directly targets PIN2-mediated
    auxin fluxes for root gravitropism. bioRxiv, <a href="https://doi.org/10.1101/2022.11.30.518503">10.1101/2022.11.30.518503</a>.
  mla: Rodriguez Solovey, Lesia, et al. “ABP1/ABL3-TMK1 Cell-Surface Auxin Signaling
    Directly Targets PIN2-Mediated Auxin Fluxes for Root Gravitropism.” <i>BioRxiv</i>,
    doi:<a href="https://doi.org/10.1101/2022.11.30.518503">10.1101/2022.11.30.518503</a>.
  short: L. Rodriguez Solovey, L. Fiedler, M. Zou, C. Giannini, A. Monzer, D. Vladimirtsev,
    M. Randuch, Y. Yu, Z. Gelová, I. Verstraeten, J. Hajny, M. Chen, S. Tan, L. Hörmayer,
    L. Li, M.M. Marques-Bueno, Z. Quddoos, G. Molnar, T. Xu, I. Kulich, Y. Jaillais,
    J. Friml, BioRxiv (n.d.).
corr_author: '1'
das_tickbox: '1'
date_created: 2025-03-13T08:36:48Z
date_published: 2025-02-20T00:00:00Z
date_updated: 2026-08-14T09:33:45Z
day: '20'
ddc:
- '580'
department:
- _id: JiFr
- _id: XiFe
doi: 10.1101/2022.11.30.518503
ec_funded: 1
fulldoi: https://doi.org/10.1101/2022.11.30.518503
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2022.11.30.518503
month: '02'
oa: 1
oa_version: Published Version
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: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 26060676-B435-11E9-9278-68D0E5697425
  grant_number: ALTF 985-2016
  name: Cell surface receptor complexes for auxin signaling in plants
publication: bioRxiv
publication_status: draft
related_material:
  record:
  - id: '20656'
    relation: later_version
    status: public
  - id: '20364'
    relation: dissertation_contains
    status: public
  - id: '19395'
    relation: dissertation_contains
    status: public
status: public
title: ABP1/ABL3-TMK1 cell-surface auxin signaling directly targets PIN2-mediated
  auxin fluxes for root gravitropism
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2025'
...
---
_id: '14447'
abstract:
- lang: eng
  text: "Auxin belongs among major phytohormones and governs multiple aspects of plant
    growth and development. The establishment of auxin concentration gradients, determines,
    among other processes, plant organ positioning and growth responses to environmental
    stimuli.\r\nHerein we report the synthesis of new NBD- or DNS-labelled IAA derivatives
    and the elucidation of their biological activity, fluorescence properties and
    subcellular accumulation patterns in planta. These novel compounds did not show
    auxin-like activity, but instead antagonized physiological auxin effects. The
    DNS-labelled derivatives FL5 and FL6 showed strong anti-auxin activity in roots
    and hypocotyls, which also occurred at the level of gene transcription as confirmed
    by quantitative PCR analysis. The auxin antagonism of our derivatives was further
    demonstrated in vitro using an SPR-based binding assay. The NBD-labelled compound
    FL4 with the best fluorescence properties proved to be unsuitable to study auxin
    accumulation patterns in planta. On the other hand, the strongest anti-auxin activity
    possessing compounds FL5 and FL6 could be useful to study binding mechanisms to
    auxin receptors and for manipulations of auxin-regulated processes."
acknowledgement: The authors would like to thank Karolína Kubiasová and Iñigo Saiz-Fernández
  for valuable scientific discussions. Open access publishing supported by the National
  Technical Library in Prague. This work was supported by the Palacký University Olomouc
  Young Researcher Grant Competition (JG_2020_002), by the Internal Grant Agency of
  Palacký University Olomouc (IGA_PrF_2023_016, IGA_PrF_2023_031), by the Ministry
  of Education, Youth and Sports of the Czech Republic through the European Regional
  Development Fund-Project Plants as a tool for sustainable global development (CZ.02.1.01/0.0/0.0/16_019/0000827)
  and the project Support of mobility at Palacký University Olomouc II. (CZ.02.2.69/0.0/0.0/18_053/0016919).
  The Biacore T200 SPR instrument was provided by the WISB Research Technology Facility
  within the School of Life Sciences, University of Warwick.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Kristýna
  full_name: Bieleszová, Kristýna
  last_name: Bieleszová
- first_name: Pavel
  full_name: Hladík, Pavel
  last_name: Hladík
- first_name: Martin
  full_name: Kubala, Martin
  last_name: Kubala
- first_name: Richard
  full_name: Napier, Richard
  last_name: Napier
- first_name: Federica
  full_name: Brunoni, Federica
  last_name: Brunoni
- first_name: Zuzana
  full_name: Gelová, Zuzana
  id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
  last_name: Gelová
  orcid: 0000-0003-4783-1752
- first_name: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Ivan
  full_name: Kulich, Ivan
  id: 57a1567c-8314-11eb-9063-c9ddc3451a54
  last_name: Kulich
- first_name: Miroslav
  full_name: Strnad, Miroslav
  last_name: Strnad
- first_name: Karel
  full_name: Doležal, Karel
  last_name: Doležal
- first_name: Ondřej
  full_name: Novák, Ondřej
  last_name: Novák
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Asta
  full_name: Žukauskaitė, Asta
  last_name: Žukauskaitė
citation:
  ama: 'Bieleszová K, Hladík P, Kubala M, et al. New fluorescent auxin derivatives:
    Anti-auxin activity and accumulation patterns in Arabidopsis thaliana. <i>Plant
    Growth Regulation</i>. 2024;102:589-602. doi:<a href="https://doi.org/10.1007/s10725-023-01083-0">10.1007/s10725-023-01083-0</a>'
  apa: 'Bieleszová, K., Hladík, P., Kubala, M., Napier, R., Brunoni, F., Gelová, Z.,
    … Žukauskaitė, A. (2024). New fluorescent auxin derivatives: Anti-auxin activity
    and accumulation patterns in Arabidopsis thaliana. <i>Plant Growth Regulation</i>.
    Springer Nature. <a href="https://doi.org/10.1007/s10725-023-01083-0">https://doi.org/10.1007/s10725-023-01083-0</a>'
  chicago: 'Bieleszová, Kristýna, Pavel Hladík, Martin Kubala, Richard Napier, Federica
    Brunoni, Zuzana Gelová, Lukas Fiedler, et al. “New Fluorescent Auxin Derivatives:
    Anti-Auxin Activity and Accumulation Patterns in Arabidopsis Thaliana.” <i>Plant
    Growth Regulation</i>. Springer Nature, 2024. <a href="https://doi.org/10.1007/s10725-023-01083-0">https://doi.org/10.1007/s10725-023-01083-0</a>.'
  ieee: 'K. Bieleszová <i>et al.</i>, “New fluorescent auxin derivatives: Anti-auxin
    activity and accumulation patterns in Arabidopsis thaliana,” <i>Plant Growth Regulation</i>,
    vol. 102. Springer Nature, pp. 589–602, 2024.'
  ista: 'Bieleszová K, Hladík P, Kubala M, Napier R, Brunoni F, Gelová Z, Fiedler
    L, Kulich I, Strnad M, Doležal K, Novák O, Friml J, Žukauskaitė A. 2024. New fluorescent
    auxin derivatives: Anti-auxin activity and accumulation patterns in Arabidopsis
    thaliana. Plant Growth Regulation. 102, 589–602.'
  mla: 'Bieleszová, Kristýna, et al. “New Fluorescent Auxin Derivatives: Anti-Auxin
    Activity and Accumulation Patterns in Arabidopsis Thaliana.” <i>Plant Growth Regulation</i>,
    vol. 102, Springer Nature, 2024, pp. 589–602, doi:<a href="https://doi.org/10.1007/s10725-023-01083-0">10.1007/s10725-023-01083-0</a>.'
  short: K. Bieleszová, P. Hladík, M. Kubala, R. Napier, F. Brunoni, Z. Gelová, L.
    Fiedler, I. Kulich, M. Strnad, K. Doležal, O. Novák, J. Friml, A. Žukauskaitė,
    Plant Growth Regulation 102 (2024) 589–602.
date_created: 2023-10-22T22:01:15Z
date_published: 2024-04-01T00:00:00Z
date_updated: 2024-07-16T08:13:39Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1007/s10725-023-01083-0
external_id:
  isi:
  - '001084334300001'
file:
- access_level: open_access
  checksum: e63271b1d57c1f03c1d993fd62cba59c
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-16T08:13:24Z
  date_updated: 2024-07-16T08:13:24Z
  file_id: '17252'
  file_name: 2024_PlantGrowthReg_Bieleszova.pdf
  file_size: 2847929
  relation: main_file
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file_date_updated: 2024-07-16T08:13:24Z
fulldoi: https://doi.org/10.1007/s10725-023-01083-0
has_accepted_license: '1'
intvolume: '       102'
isi: 1
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 589-602
publication: Plant Growth Regulation
publication_identifier:
  eissn:
  - 1573-5087
  issn:
  - 0167-6903
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'New fluorescent auxin derivatives: Anti-auxin activity and accumulation patterns
  in Arabidopsis thaliana'
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: 102
year: '2024'
...
---
_id: '14313'
abstract:
- lang: eng
  text: To respond to auxin, the chief orchestrator of their multicellularity, plants
    evolved multiple receptor systems and signal transduction cascades. Despite decades
    of research, however, we are still lacking a satisfactory synthesis of various
    auxin signaling mechanisms. The chief discrepancy and historical controversy of
    the field is that of rapid and slow auxin effects on plant physiology and development.
    How is it possible that ions begin to trickle across the plasma membrane as soon
    as auxin enters the cell, even though the best-characterized transcriptional auxin
    pathway can take effect only after tens of minutes? Recently, unexpected progress
    has been made in understanding this and other unknowns of auxin signaling. We
    provide a perspective on these exciting developments and concepts whose general
    applicability might have ramifications beyond auxin signaling.
acknowledgement: The opening quote is not intended to reflect any political views
  of the authors. The authors by no means endorse the rhetoric of Donald Rumsfeld
  or the 2003 invasion of Iraq by the United States. Nevertheless, Rumsfeld's quote
  led to both public and academic debates on the concept of known and unknown unknowns,
  which can be applied to the recent unexpected developments in the auxin signaling
  field. We thank Linlin Qi and Huihuang Chen for their suggestions on figure presentation
  and inspiring discussions of TIR1/AFB signaling. Finally, we thank Aroosa Hussain
  for discussion of Greek mythology.
article_number: '102443'
article_processing_charge: No
article_type: review
author:
- first_name: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: 'Fiedler L, Friml J. Rapid auxin signaling: Unknowns old and new. <i>Current
    Opinion in Plant Biology</i>. 2023;75(10). doi:<a href="https://doi.org/10.1016/j.pbi.2023.102443">10.1016/j.pbi.2023.102443</a>'
  apa: 'Fiedler, L., &#38; Friml, J. (2023). Rapid auxin signaling: Unknowns old and
    new. <i>Current Opinion in Plant Biology</i>. Elsevier. <a href="https://doi.org/10.1016/j.pbi.2023.102443">https://doi.org/10.1016/j.pbi.2023.102443</a>'
  chicago: 'Fiedler, Lukas, and Jiří Friml. “Rapid Auxin Signaling: Unknowns Old and
    New.” <i>Current Opinion in Plant Biology</i>. Elsevier, 2023. <a href="https://doi.org/10.1016/j.pbi.2023.102443">https://doi.org/10.1016/j.pbi.2023.102443</a>.'
  ieee: 'L. Fiedler and J. Friml, “Rapid auxin signaling: Unknowns old and new,” <i>Current
    Opinion in Plant Biology</i>, vol. 75, no. 10. Elsevier, 2023.'
  ista: 'Fiedler L, Friml J. 2023. Rapid auxin signaling: Unknowns old and new. Current
    Opinion in Plant Biology. 75(10), 102443.'
  mla: 'Fiedler, Lukas, and Jiří Friml. “Rapid Auxin Signaling: Unknowns Old and New.”
    <i>Current Opinion in Plant Biology</i>, vol. 75, no. 10, 102443, Elsevier, 2023,
    doi:<a href="https://doi.org/10.1016/j.pbi.2023.102443">10.1016/j.pbi.2023.102443</a>.'
  short: L. Fiedler, J. Friml, Current Opinion in Plant Biology 75 (2023).
corr_author: '1'
date_created: 2023-09-10T22:01:11Z
date_published: 2023-10-01T00:00:00Z
date_updated: 2025-09-09T12:54:16Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1016/j.pbi.2023.102443
external_id:
  isi:
  - '001080095300001'
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  - '37666097'
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fulldoi: https://doi.org/10.1016/j.pbi.2023.102443
has_accepted_license: '1'
intvolume: '        75'
isi: 1
issue: '10'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
pmid: 1
publication: Current Opinion in Plant Biology
publication_identifier:
  issn:
  - 1369-5266
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Rapid auxin signaling: Unknowns old and new'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 75
year: '2023'
...
---
_id: '12291'
abstract:
- lang: eng
  text: The phytohormone auxin triggers transcriptional reprogramming through a well-characterized
    perception machinery in the nucleus. By contrast, mechanisms that underlie fast
    effects of auxin, such as the regulation of ion fluxes, rapid phosphorylation
    of proteins or auxin feedback on its transport, remain unclear1,2,3. Whether auxin-binding
    protein 1 (ABP1) is an auxin receptor has been a source of debate for decades1,4.
    Here we show that a fraction of Arabidopsis thaliana ABP1 is secreted and binds
    auxin specifically at an acidic pH that is typical of the apoplast. ABP1 and its
    plasma-membrane-localized partner, transmembrane kinase 1 (TMK1), are required
    for the auxin-induced ultrafast global phospho-response and for downstream processes
    that include the activation of H+-ATPase and accelerated cytoplasmic streaming.
    abp1 and tmk mutants cannot establish auxin-transporting channels and show defective
    auxin-induced vasculature formation and regeneration. An ABP1(M2X) variant that
    lacks the capacity to bind auxin is unable to complement these defects in abp1
    mutants. These data indicate that ABP1 is the auxin receptor for TMK1-based cell-surface
    signalling, which mediates the global phospho-response and auxin canalization.
acknowledged_ssus:
- _id: Bio
- _id: EM-Fac
- _id: LifeSc
acknowledgement: We acknowledge K. Kubiasová for excellent technical assistance, J.
  Neuhold, A. Lehner and A. Sedivy for technical assistance with protein production
  and purification at Vienna Biocenter Core Facilities; Creoptix for performing GCI;
  and the Bioimaging, Electron Microscopy and Life Science Facilities at ISTA, the
  Plant Sciences Core Facility of CEITEC Masaryk University, the Core Facility CELLIM
  (MEYS CR, LM2018129 Czech-BioImaging) and J. Sprakel for their assistance. J.F.
  is grateful to R. Napier for many insightful suggestions and support. We thank all
  past and present members of the Friml group for their support and for other contributions
  to this effort to clarify the controversial role of ABP1 over the past seven years.
  The project received funding from the European Research Council (ERC) under the
  European Union’s Horizon 2020 research and innovation program (grant agreement no.
  742985 to J.F. and 833867 to D.W.); the Austrian Science Fund (FWF; P29988 to J.F.);
  the Netherlands Organization for Scientific Research (NWO; VICI grant 865.14.001
  to D.W. and VENI grant VI.Veni.212.003 to A.K.); the Ministry of Education, Science
  and Technological Development of the Republic of Serbia (contract no. 451-03-68/2022-14/200053
  to B.D.Ž.); and the MEXT/JSPS KAKENHI to K.T. (20K06685) and T.K. (20H05687 and
  20H05910).
article_processing_charge: No
article_type: original
author:
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Michelle C
  full_name: Gallei, Michelle C
  id: 35A03822-F248-11E8-B48F-1D18A9856A87
  last_name: Gallei
  orcid: 0000-0003-1286-7368
- first_name: Zuzana
  full_name: Gelová, Zuzana
  id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
  last_name: Gelová
  orcid: 0000-0003-4783-1752
- 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: Ewa
  full_name: Mazur, Ewa
  last_name: Mazur
- first_name: Aline
  full_name: Monzer, Aline
  id: 2DB5D88C-D7B3-11E9-B8FD-7907E6697425
  last_name: Monzer
- 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: Mark
  full_name: Roosjen, Mark
  last_name: Roosjen
- first_name: Inge
  full_name: Verstraeten, Inge
  id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
  last_name: Verstraeten
  orcid: 0000-0001-7241-2328
- first_name: Branka D.
  full_name: Živanović, Branka D.
  last_name: Živanović
- first_name: Minxia
  full_name: Zou, Minxia
  id: 5c243f41-03f3-11ec-841c-96faf48a7ef9
  last_name: Zou
- first_name: Lukas
  full_name: Fiedler, Lukas
  id: 7c417475-8972-11ed-ae7b-8b674ca26986
  last_name: Fiedler
- first_name: Caterina
  full_name: Giannini, Caterina
  id: e3fdddd5-f6e0-11ea-865d-ca99ee6367f4
  last_name: Giannini
- first_name: Peter
  full_name: Grones, Peter
  last_name: Grones
- first_name: Mónika
  full_name: Hrtyan, Mónika
  id: 45A71A74-F248-11E8-B48F-1D18A9856A87
  last_name: Hrtyan
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- first_name: Andre
  full_name: Kuhn, Andre
  last_name: Kuhn
- first_name: Madhumitha
  full_name: Narasimhan, Madhumitha
  id: 44BF24D0-F248-11E8-B48F-1D18A9856A87
  last_name: Narasimhan
  orcid: 0000-0002-8600-0671
- first_name: Marek
  full_name: Randuch, Marek
  id: 6ac4636d-15b2-11ec-abd3-fb8df79972ae
  last_name: Randuch
- first_name: Nikola
  full_name: Rýdza, Nikola
  last_name: Rýdza
- first_name: Koji
  full_name: Takahashi, Koji
  last_name: Takahashi
- first_name: Shutang
  full_name: Tan, Shutang
  id: 2DE75584-F248-11E8-B48F-1D18A9856A87
  last_name: Tan
  orcid: 0000-0002-0471-8285
- first_name: Anastasiia
  full_name: Teplova, Anastasiia
  id: e3736151-106c-11ec-b916-c2558e2762c6
  last_name: Teplova
- first_name: Toshinori
  full_name: Kinoshita, Toshinori
  last_name: Kinoshita
- first_name: Dolf
  full_name: Weijers, Dolf
  last_name: Weijers
- first_name: Hana
  full_name: Rakusová, Hana
  last_name: Rakusová
citation:
  ama: Friml J, Gallei MC, Gelová Z, et al. ABP1–TMK auxin perception for global phosphorylation
    and auxin canalization. <i>Nature</i>. 2022;609(7927):575-581. doi:<a href="https://doi.org/10.1038/s41586-022-05187-x">10.1038/s41586-022-05187-x</a>
  apa: Friml, J., Gallei, M. C., Gelová, Z., Johnson, A. J., Mazur, E., Monzer, A.,
    … Rakusová, H. (2022). ABP1–TMK auxin perception for global phosphorylation and
    auxin canalization. <i>Nature</i>. Springer Nature. <a href="https://doi.org/10.1038/s41586-022-05187-x">https://doi.org/10.1038/s41586-022-05187-x</a>
  chicago: Friml, Jiří, Michelle C Gallei, Zuzana Gelová, Alexander J Johnson, Ewa
    Mazur, Aline Monzer, Lesia Rodriguez Solovey, et al. “ABP1–TMK Auxin Perception
    for Global Phosphorylation and Auxin Canalization.” <i>Nature</i>. Springer Nature,
    2022. <a href="https://doi.org/10.1038/s41586-022-05187-x">https://doi.org/10.1038/s41586-022-05187-x</a>.
  ieee: J. Friml <i>et al.</i>, “ABP1–TMK auxin perception for global phosphorylation
    and auxin canalization,” <i>Nature</i>, vol. 609, no. 7927. Springer Nature, pp.
    575–581, 2022.
  ista: Friml J, Gallei MC, Gelová Z, Johnson AJ, Mazur E, Monzer A, Rodriguez Solovey
    L, Roosjen M, Verstraeten I, Živanović BD, Zou M, Fiedler L, Giannini C, Grones
    P, Hrtyan M, Kaufmann W, Kuhn A, Narasimhan M, Randuch M, Rýdza N, Takahashi K,
    Tan S, Teplova A, Kinoshita T, Weijers D, Rakusová H. 2022. ABP1–TMK auxin perception
    for global phosphorylation and auxin canalization. Nature. 609(7927), 575–581.
  mla: Friml, Jiří, et al. “ABP1–TMK Auxin Perception for Global Phosphorylation and
    Auxin Canalization.” <i>Nature</i>, vol. 609, no. 7927, Springer Nature, 2022,
    pp. 575–81, doi:<a href="https://doi.org/10.1038/s41586-022-05187-x">10.1038/s41586-022-05187-x</a>.
  short: J. Friml, M.C. Gallei, Z. Gelová, A.J. Johnson, E. Mazur, A. Monzer, L. Rodriguez
    Solovey, M. Roosjen, I. Verstraeten, B.D. Živanović, M. Zou, L. Fiedler, C. Giannini,
    P. Grones, M. Hrtyan, W. Kaufmann, A. Kuhn, M. Narasimhan, M. Randuch, N. Rýdza,
    K. Takahashi, S. Tan, A. Teplova, T. Kinoshita, D. Weijers, H. Rakusová, Nature
    609 (2022) 575–581.
corr_author: '1'
date_created: 2023-01-16T10:04:48Z
date_published: 2022-09-15T00:00:00Z
date_updated: 2026-08-14T09:33:45Z
day: '15'
ddc:
- '580'
department:
- _id: JiFr
- _id: GradSch
- _id: EvBe
- _id: EM-Fac
doi: 10.1038/s41586-022-05187-x
ec_funded: 1
external_id:
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  pmid:
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intvolume: '       609'
isi: 1
issue: '7927'
language:
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month: '09'
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oa_version: Submitted Version
page: 575-581
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: 262EF96E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29988
  name: RNA-directed DNA methylation in plant development
publication: Nature
publication_identifier:
  eissn:
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  issn:
  - 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
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title: ABP1–TMK auxin perception for global phosphorylation and auxin canalization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 609
year: '2022'
...
