---
_id: '922'
abstract:
- lang: eng
text: 'We study theoretically the morphologies of biological tubes affected by various
pathologies. When epithelial cells grow, the negative tension produced by their
division provokes a buckling instability. Several shapes are investigated: varicose,
dilated, sinuous, or sausagelike. They are all found in pathologies of tracheal,
renal tubes, or arteries. The final shape depends crucially on the mechanical
parameters of the tissues: Young''s modulus, wall-to-lumen ratio, homeostatic
pressure. We argue that since tissues must be in quasistatic mechanical equilibrium,
abnormal shapes convey information as to what causes the pathology. We calculate
a phase diagram of tubular instabilities which could be a helpful guide for investigating
the underlying genetic regulation.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Jacques
full_name: Prost, Jacques
last_name: Prost
- first_name: Jean
full_name: Joanny, Jean
last_name: Joanny
citation:
ama: Hannezo EB, Prost J, Joanny J. Mechanical instabilities of biological tubes.
Physical Review Letters. 2012;109(1). doi:10.1103/PhysRevLett.109.018101
apa: Hannezo, E. B., Prost, J., & Joanny, J. (2012). Mechanical instabilities
of biological tubes. Physical Review Letters. American Physical Society.
https://doi.org/10.1103/PhysRevLett.109.018101
chicago: Hannezo, Edouard B, Jacques Prost, and Jean Joanny. “Mechanical Instabilities
of Biological Tubes.” Physical Review Letters. American Physical Society,
2012. https://doi.org/10.1103/PhysRevLett.109.018101.
ieee: E. B. Hannezo, J. Prost, and J. Joanny, “Mechanical instabilities of biological
tubes,” Physical Review Letters, vol. 109, no. 1. American Physical Society,
2012.
ista: Hannezo EB, Prost J, Joanny J. 2012. Mechanical instabilities of biological
tubes. Physical Review Letters. 109(1).
mla: Hannezo, Edouard B., et al. “Mechanical Instabilities of Biological Tubes.”
Physical Review Letters, vol. 109, no. 1, American Physical Society, 2012,
doi:10.1103/PhysRevLett.109.018101.
short: E.B. Hannezo, J. Prost, J. Joanny, Physical Review Letters 109 (2012).
date_created: 2018-12-11T11:49:13Z
date_published: 2012-07-03T00:00:00Z
date_updated: 2021-01-12T08:21:56Z
day: '03'
doi: 10.1103/PhysRevLett.109.018101
extern: '1'
external_id:
arxiv:
- '1207.1516'
intvolume: ' 109'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1207.1516
month: '07'
oa: 1
oa_version: Preprint
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6519'
status: public
title: Mechanical instabilities of biological tubes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2012'
...
---
_id: '9451'
abstract:
- lang: eng
text: The Arabidopsis thaliana central cell, the companion cell of the egg, undergoes
DNA demethylation before fertilization, but the targeting preferences, mechanism,
and biological significance of this process remain unclear. Here, we show that
active DNA demethylation mediated by the DEMETER DNA glycosylase accounts for
all of the demethylation in the central cell and preferentially targets small,
AT-rich, and nucleosome-depleted euchromatic transposable elements. The vegetative
cell, the companion cell of sperm, also undergoes DEMETER-dependent demethylation
of similar sequences, and lack of DEMETER in vegetative cells causes reduced small
RNA–directed DNA methylation of transposons in sperm. Our results demonstrate
that demethylation in companion cells reinforces transposon methylation in plant
gametes and likely contributes to stable silencing of transposable elements across
generations.
article_processing_charge: No
article_type: original
author:
- first_name: Christian A.
full_name: Ibarra, Christian A.
last_name: Ibarra
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
last_name: Feng
- first_name: Vera K.
full_name: Schoft, Vera K.
last_name: Schoft
- first_name: Tzung-Fu
full_name: Hsieh, Tzung-Fu
last_name: Hsieh
- first_name: Rie
full_name: Uzawa, Rie
last_name: Uzawa
- first_name: Jessica A.
full_name: Rodrigues, Jessica A.
last_name: Rodrigues
- first_name: Assaf
full_name: Zemach, Assaf
last_name: Zemach
- first_name: Nina
full_name: Chumak, Nina
last_name: Chumak
- first_name: Adriana
full_name: Machlicova, Adriana
last_name: Machlicova
- first_name: Toshiro
full_name: Nishimura, Toshiro
last_name: Nishimura
- first_name: Denisse
full_name: Rojas, Denisse
last_name: Rojas
- first_name: Robert L.
full_name: Fischer, Robert L.
last_name: Fischer
- first_name: Hisashi
full_name: Tamaru, Hisashi
last_name: Tamaru
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Ibarra CA, Feng X, Schoft VK, et al. Active DNA demethylation in plant companion
cells reinforces transposon methylation in gametes. Science. 2012;337(6100):1360-1364.
doi:10.1126/science.1224839
apa: Ibarra, C. A., Feng, X., Schoft, V. K., Hsieh, T.-F., Uzawa, R., Rodrigues,
J. A., … Zilberman, D. (2012). Active DNA demethylation in plant companion cells
reinforces transposon methylation in gametes. Science. American Association
for the Advancement of Science. https://doi.org/10.1126/science.1224839
chicago: Ibarra, Christian A., Xiaoqi Feng, Vera K. Schoft, Tzung-Fu Hsieh, Rie
Uzawa, Jessica A. Rodrigues, Assaf Zemach, et al. “Active DNA Demethylation in
Plant Companion Cells Reinforces Transposon Methylation in Gametes.” Science.
American Association for the Advancement of Science, 2012. https://doi.org/10.1126/science.1224839.
ieee: C. A. Ibarra et al., “Active DNA demethylation in plant companion cells
reinforces transposon methylation in gametes,” Science, vol. 337, no. 6100.
American Association for the Advancement of Science, pp. 1360–1364, 2012.
ista: Ibarra CA, Feng X, Schoft VK, Hsieh T-F, Uzawa R, Rodrigues JA, Zemach A,
Chumak N, Machlicova A, Nishimura T, Rojas D, Fischer RL, Tamaru H, Zilberman
D. 2012. Active DNA demethylation in plant companion cells reinforces transposon
methylation in gametes. Science. 337(6100), 1360–1364.
mla: Ibarra, Christian A., et al. “Active DNA Demethylation in Plant Companion Cells
Reinforces Transposon Methylation in Gametes.” Science, vol. 337, no. 6100,
American Association for the Advancement of Science, 2012, pp. 1360–64, doi:10.1126/science.1224839.
short: C.A. Ibarra, X. Feng, V.K. Schoft, T.-F. Hsieh, R. Uzawa, J.A. Rodrigues,
A. Zemach, N. Chumak, A. Machlicova, T. Nishimura, D. Rojas, R.L. Fischer, H.
Tamaru, D. Zilberman, Science 337 (2012) 1360–1364.
date_created: 2021-06-04T07:51:31Z
date_published: 2012-09-14T00:00:00Z
date_updated: 2021-12-14T08:28:51Z
day: '14'
ddc:
- '580'
department:
- _id: DaZi
doi: 10.1126/science.1224839
extern: '1'
external_id:
pmid:
- '22984074'
has_accepted_license: '1'
intvolume: ' 337'
issue: '6100'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4034762/
month: '09'
oa: 1
oa_version: Published Version
page: 1360-1364
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Active DNA demethylation in plant companion cells reinforces transposon methylation
in gametes
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 337
year: '2012'
...
---
_id: '9497'
abstract:
- lang: eng
text: The regulation of eukaryotic chromatin relies on interactions between many
epigenetic factors, including histone modifications, DNA methylation, and the
incorporation of histone variants. H2A.Z, one of the most conserved but enigmatic
histone variants that is enriched at the transcriptional start sites of genes,
has been implicated in a variety of chromosomal processes. Recently, we reported
a genome-wide anticorrelation between H2A.Z and DNA methylation, an epigenetic
hallmark of heterochromatin that has also been found in the bodies of active genes
in plants and animals. Here, we investigate the basis of this anticorrelation
using a novel h2a.z loss-of-function line in Arabidopsis thaliana. Through genome-wide
bisulfite sequencing, we demonstrate that loss of H2A.Z in Arabidopsis has only
a minor effect on the level or profile of DNA methylation in genes, and we propose
that the global anticorrelation between DNA methylation and H2A.Z is primarily
caused by the exclusion of H2A.Z from methylated DNA. RNA sequencing and genomic
mapping of H2A.Z show that H2A.Z enrichment across gene bodies, rather than at
the TSS, is correlated with lower transcription levels and higher measures of
gene responsiveness. Loss of H2A.Z causes misregulation of many genes that are
disproportionately associated with response to environmental and developmental
stimuli. We propose that H2A.Z deposition in gene bodies promotes variability
in levels and patterns of gene expression, and that a major function of genic
DNA methylation is to exclude H2A.Z from constitutively expressed genes.
article_number: e1002988
article_processing_charge: No
article_type: original
author:
- first_name: Devin
full_name: Coleman-Derr, Devin
last_name: Coleman-Derr
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Coleman-Derr D, Zilberman D. Deposition of histone variant H2A.Z within gene
bodies regulates responsive genes. PLoS Genetics. 2012;8(10). doi:10.1371/journal.pgen.1002988
apa: Coleman-Derr, D., & Zilberman, D. (2012). Deposition of histone variant
H2A.Z within gene bodies regulates responsive genes. PLoS Genetics. Public
Library of Science. https://doi.org/10.1371/journal.pgen.1002988
chicago: Coleman-Derr, Devin, and Daniel Zilberman. “Deposition of Histone Variant
H2A.Z within Gene Bodies Regulates Responsive Genes.” PLoS Genetics. Public
Library of Science, 2012. https://doi.org/10.1371/journal.pgen.1002988.
ieee: D. Coleman-Derr and D. Zilberman, “Deposition of histone variant H2A.Z within
gene bodies regulates responsive genes,” PLoS Genetics, vol. 8, no. 10.
Public Library of Science, 2012.
ista: Coleman-Derr D, Zilberman D. 2012. Deposition of histone variant H2A.Z within
gene bodies regulates responsive genes. PLoS Genetics. 8(10), e1002988.
mla: Coleman-Derr, Devin, and Daniel Zilberman. “Deposition of Histone Variant H2A.Z
within Gene Bodies Regulates Responsive Genes.” PLoS Genetics, vol. 8,
no. 10, e1002988, Public Library of Science, 2012, doi:10.1371/journal.pgen.1002988.
short: D. Coleman-Derr, D. Zilberman, PLoS Genetics 8 (2012).
date_created: 2021-06-07T10:55:27Z
date_published: 2012-10-11T00:00:00Z
date_updated: 2021-12-14T08:29:57Z
day: '11'
department:
- _id: DaZi
doi: 10.1371/journal.pgen.1002988
extern: '1'
external_id:
pmid:
- '23071449'
intvolume: ' 8'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1371/journal.pgen.1002988
month: '10'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS Genetics
publication_identifier:
eissn:
- 1553-7404
issn:
- 1553-7390
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deposition of histone variant H2A.Z within gene bodies regulates responsive
genes
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 8
year: '2012'
...
---
_id: '9499'
abstract:
- lang: eng
text: EMBRYONIC FLOWER1 (EMF1) is a plant-specific gene crucial to Arabidopsis vegetative
development. Loss of function mutants in the EMF1 gene mimic the phenotype caused
by mutations in Polycomb Group protein (PcG) genes, which encode epigenetic repressors
that regulate many aspects of eukaryotic development. In Arabidopsis, Polycomb
Repressor Complex 2 (PRC2), made of PcG proteins, catalyzes trimethylation of
lysine 27 on histone H3 (H3K27me3) and PRC1-like proteins catalyze H2AK119 ubiquitination.
Despite functional similarity to PcG proteins, EMF1 lacks sequence homology with
known PcG proteins; thus, its role in the PcG mechanism is unclear. To study the
EMF1 functions and its mechanism of action, we performed genome-wide mapping of
EMF1 binding and H3K27me3 modification sites in Arabidopsis seedlings. The EMF1
binding pattern is similar to that of H3K27me3 modification on the chromosomal
and genic level. ChIPOTLe peak finding and clustering analyses both show that
the highly trimethylated genes also have high enrichment levels of EMF1 binding,
termed EMF1_K27 genes. EMF1 interacts with regulatory genes, which are silenced
to allow vegetative growth, and with genes specifying cell fates during growth
and differentiation. H3K27me3 marks not only these genes but also some genes that
are involved in endosperm development and maternal effects. Transcriptome analysis,
coupled with the H3K27me3 pattern, of EMF1_K27 genes in emf1 and PRC2 mutants
showed that EMF1 represses gene activities via diverse mechanisms and plays a
novel role in the PcG mechanism.
article_number: e1002512
article_processing_charge: No
article_type: original
author:
- first_name: Sang Yeol
full_name: Kim, Sang Yeol
last_name: Kim
- first_name: Jungeun
full_name: Lee, Jungeun
last_name: Lee
- first_name: Leor
full_name: Eshed-Williams, Leor
last_name: Eshed-Williams
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
- first_name: Z. Renee
full_name: Sung, Z. Renee
last_name: Sung
citation:
ama: Kim SY, Lee J, Eshed-Williams L, Zilberman D, Sung ZR. EMF1 and PRC2 cooperate
to repress key regulators of Arabidopsis development. PLoS Genetics. 2012;8(3).
doi:10.1371/journal.pgen.1002512
apa: Kim, S. Y., Lee, J., Eshed-Williams, L., Zilberman, D., & Sung, Z. R. (2012).
EMF1 and PRC2 cooperate to repress key regulators of Arabidopsis development.
PLoS Genetics. Public Library of Science. https://doi.org/10.1371/journal.pgen.1002512
chicago: Kim, Sang Yeol, Jungeun Lee, Leor Eshed-Williams, Daniel Zilberman, and
Z. Renee Sung. “EMF1 and PRC2 Cooperate to Repress Key Regulators of Arabidopsis
Development.” PLoS Genetics. Public Library of Science, 2012. https://doi.org/10.1371/journal.pgen.1002512.
ieee: S. Y. Kim, J. Lee, L. Eshed-Williams, D. Zilberman, and Z. R. Sung, “EMF1
and PRC2 cooperate to repress key regulators of Arabidopsis development,” PLoS
Genetics, vol. 8, no. 3. Public Library of Science, 2012.
ista: Kim SY, Lee J, Eshed-Williams L, Zilberman D, Sung ZR. 2012. EMF1 and PRC2
cooperate to repress key regulators of Arabidopsis development. PLoS Genetics.
8(3), e1002512.
mla: Kim, Sang Yeol, et al. “EMF1 and PRC2 Cooperate to Repress Key Regulators of
Arabidopsis Development.” PLoS Genetics, vol. 8, no. 3, e1002512, Public
Library of Science, 2012, doi:10.1371/journal.pgen.1002512.
short: S.Y. Kim, J. Lee, L. Eshed-Williams, D. Zilberman, Z.R. Sung, PLoS Genetics
8 (2012).
date_created: 2021-06-07T11:07:56Z
date_published: 2012-03-22T00:00:00Z
date_updated: 2021-12-14T08:31:14Z
day: '22'
department:
- _id: DaZi
doi: 10.1371/journal.pgen.1002512
extern: '1'
external_id:
pmid:
- '22457632'
intvolume: ' 8'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1371/journal.pgen.1002512
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS Genetics
publication_identifier:
eissn:
- 1553-7404
issn:
- 1553-7390
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: EMF1 and PRC2 cooperate to repress key regulators of Arabidopsis development
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 8
year: '2012'
...
---
_id: '9528'
abstract:
- lang: eng
text: Accumulating evidence points toward diverse functions for plant chromatin.
Remarkable progress has been made over the last few years in elucidating the mechanisms
for a number of these functions. Activity of the histone demethylase IBM1 accurately
targets DNA methylation to silent repeats and transposable elements, not to genes.
A genetic screen uncovered the surprising role of H2A.Z-containing nucleosomes
in sensing precise differences in ambient temperature and consequent gene regulation.
Precise maintenance of chromosome number is assured by a histone modification
that suppresses inappropriate DNA replication and by centromeric histone H3 regulation
of chromosome segregation. Histones and noncoding RNAs regulate FLOWERING LOCUS
C, the expression of which quantitatively measures the duration of cold exposure,
functioning as memory of winter. These findings are a testament to the power of
using plants to research chromatin organization, and demonstrate examples of how
chromatin functions to achieve biological accuracy, precision, and memory.
article_processing_charge: No
article_type: review
author:
- first_name: Jason T.
full_name: Huff, Jason T.
last_name: Huff
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Huff JT, Zilberman D. Regulation of biological accuracy, precision, and memory
by plant chromatin organization. Current Opinion in Genetics and Development.
2012;22(2):132-138. doi:10.1016/j.gde.2012.01.007
apa: Huff, J. T., & Zilberman, D. (2012). Regulation of biological accuracy,
precision, and memory by plant chromatin organization. Current Opinion in Genetics
and Development. Elsevier. https://doi.org/10.1016/j.gde.2012.01.007
chicago: Huff, Jason T., and Daniel Zilberman. “Regulation of Biological Accuracy,
Precision, and Memory by Plant Chromatin Organization.” Current Opinion in
Genetics and Development. Elsevier, 2012. https://doi.org/10.1016/j.gde.2012.01.007.
ieee: J. T. Huff and D. Zilberman, “Regulation of biological accuracy, precision,
and memory by plant chromatin organization,” Current Opinion in Genetics and
Development, vol. 22, no. 2. Elsevier, pp. 132–138, 2012.
ista: Huff JT, Zilberman D. 2012. Regulation of biological accuracy, precision,
and memory by plant chromatin organization. Current Opinion in Genetics and Development.
22(2), 132–138.
mla: Huff, Jason T., and Daniel Zilberman. “Regulation of Biological Accuracy, Precision,
and Memory by Plant Chromatin Organization.” Current Opinion in Genetics and
Development, vol. 22, no. 2, Elsevier, 2012, pp. 132–38, doi:10.1016/j.gde.2012.01.007.
short: J.T. Huff, D. Zilberman, Current Opinion in Genetics and Development 22 (2012)
132–138.
date_created: 2021-06-08T08:58:52Z
date_published: 2012-04-01T00:00:00Z
date_updated: 2021-12-14T08:32:38Z
department:
- _id: DaZi
doi: 10.1016/j.gde.2012.01.007
extern: '1'
external_id:
pmid:
- '22336527'
intvolume: ' 22'
issue: '2'
language:
- iso: eng
month: '04'
oa_version: None
page: 132-138
pmid: 1
publication: Current Opinion in Genetics and Development
publication_identifier:
issn:
- 0959-437X
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Regulation of biological accuracy, precision, and memory by plant chromatin
organization
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 22
year: '2012'
...
---
_id: '9535'
abstract:
- lang: eng
text: The most well-studied function of DNA methylation in eukaryotic cells is the
transcriptional silencing of genes and transposons. More recent results showed
that many eukaryotes methylate the bodies of genes as well and that this methylation
correlates with transcriptional activity rather than repression. The purpose of
gene body methylation remains mysterious, but is potentially related to the histone
variant H2A.Z. Studies in plants and animals have shown that the genome-wide distributions
of H2A.Z and DNA methylation are strikingly anticorrelated. Furthermore, we and
other investigators have shown that this relationship is likely to be the result
of an ancient but unknown mechanism by which DNA methylation prevents the incorporation
of H2A.Z. Recently, we discovered strong correlations between the presence of
H2A.Z within gene bodies, the degree to which a gene's expression varies across
tissue types or environmental conditions, and transcriptional misregulation in
an h2a.z mutant. We propose that one basal function of gene body methylation is
the establishment of constitutive expression patterns within housekeeping genes
by excluding H2A.Z from their bodies.
article_processing_charge: No
article_type: review
author:
- first_name: D.
full_name: Coleman-Derr, D.
last_name: Coleman-Derr
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Coleman-Derr D, Zilberman D. DNA methylation, H2A.Z, and the regulation of
constitutive expression. Cold Spring Harbor Symposia on Quantitative Biology.
2012;77:147-154. doi:10.1101/sqb.2012.77.014944
apa: Coleman-Derr, D., & Zilberman, D. (2012). DNA methylation, H2A.Z, and the
regulation of constitutive expression. Cold Spring Harbor Symposia on Quantitative
Biology. Cold Spring Harbor Laboratory Press. https://doi.org/10.1101/sqb.2012.77.014944
chicago: Coleman-Derr, D., and Daniel Zilberman. “DNA Methylation, H2A.Z, and the
Regulation of Constitutive Expression.” Cold Spring Harbor Symposia on Quantitative
Biology. Cold Spring Harbor Laboratory Press, 2012. https://doi.org/10.1101/sqb.2012.77.014944.
ieee: D. Coleman-Derr and D. Zilberman, “DNA methylation, H2A.Z, and the regulation
of constitutive expression,” Cold Spring Harbor Symposia on Quantitative Biology,
vol. 77. Cold Spring Harbor Laboratory Press, pp. 147–154, 2012.
ista: Coleman-Derr D, Zilberman D. 2012. DNA methylation, H2A.Z, and the regulation
of constitutive expression. Cold Spring Harbor Symposia on Quantitative Biology.
77, 147–154.
mla: Coleman-Derr, D., and Daniel Zilberman. “DNA Methylation, H2A.Z, and the Regulation
of Constitutive Expression.” Cold Spring Harbor Symposia on Quantitative Biology,
vol. 77, Cold Spring Harbor Laboratory Press, 2012, pp. 147–54, doi:10.1101/sqb.2012.77.014944.
short: D. Coleman-Derr, D. Zilberman, Cold Spring Harbor Symposia on Quantitative
Biology 77 (2012) 147–154.
date_created: 2021-06-08T13:01:23Z
date_published: 2012-12-18T00:00:00Z
date_updated: 2021-12-14T08:33:09Z
day: '18'
department:
- _id: DaZi
doi: 10.1101/sqb.2012.77.014944
extern: '1'
external_id:
pmid:
- '23250988'
intvolume: ' 77'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/sqb.2012.77.014944
month: '12'
oa: 1
oa_version: Published Version
page: 147-154
pmid: 1
publication: Cold Spring Harbor Symposia on Quantitative Biology
publication_identifier:
eissn:
- 1943-4456
issn:
- 0091-7451
publication_status: published
publisher: Cold Spring Harbor Laboratory Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: DNA methylation, H2A.Z, and the regulation of constitutive expression
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 77
year: '2012'
...
---
_id: '966'
abstract:
- lang: eng
text: Motivated by recent experiments on Ba3NiSb2O 9, we investigate possible quantum
spin liquid ground states for spin S=1 Heisenberg models on the triangular lattice.
We use variational Monte Carlo techniques to calculate the energies of microscopic
spin liquid wave functions where spin is represented by three flavors of fermionic
spinon operators. These energies are compared with the energies of various competing
three-sublattice ordered states. Our approach shows that the antiferromagnetic
Heisenberg model with biquadratic term and single-ion anisotropy does not have
a low-temperature spin liquid phase. However, for an SU(3)-invariant model with
sufficiently strong ring-exchange terms, we find a paired chiral quantum spin
liquid with a Fermi surface of deconfined spinons that is stable against all types
of ordering patterns we considered. We discuss the physics of this exotic spin
liquid state in relation to the recent experiment and suggest new ways to test
this scenario.
acknowledgement: We thank Kuang-Ting Chen, Rebecca Flint, Dmitri Ivanov, Z.-X. Liu,
Tai-Kai Ng, Lara Thompson, Tamás Tóth, and Fa Wang for helpful discussions. T.S.
is supported by NSF DMR 1005434. P.A.L. is supported by NSF DMR 1104498. S.B. acknowledges
support from the Swiss National Science Foundation (SNSF).
author:
- first_name: Samuel
full_name: Bieri, Samuel
last_name: Bieri
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Todadri
full_name: Senthil, Todadri S
last_name: Senthil
- first_name: Patrick
full_name: Lee, Patrick
last_name: Lee
citation:
ama: Bieri S, Serbyn M, Senthil T, Lee P. Paired chiral spin liquid with a Fermi
surface in S=1 model on the triangular lattice. Physical Review B - Condensed
Matter and Materials Physics. 2012;86(22). doi:10.1103/PhysRevB.86.224409
apa: Bieri, S., Serbyn, M., Senthil, T., & Lee, P. (2012). Paired chiral spin
liquid with a Fermi surface in S=1 model on the triangular lattice. Physical
Review B - Condensed Matter and Materials Physics. American Physical Society.
https://doi.org/10.1103/PhysRevB.86.224409
chicago: Bieri, Samuel, Maksym Serbyn, Todadri Senthil, and Patrick Lee. “Paired
Chiral Spin Liquid with a Fermi Surface in S=1 Model on the Triangular Lattice.”
Physical Review B - Condensed Matter and Materials Physics. American Physical
Society, 2012. https://doi.org/10.1103/PhysRevB.86.224409.
ieee: S. Bieri, M. Serbyn, T. Senthil, and P. Lee, “Paired chiral spin liquid with
a Fermi surface in S=1 model on the triangular lattice,” Physical Review B
- Condensed Matter and Materials Physics, vol. 86, no. 22. American Physical
Society, 2012.
ista: Bieri S, Serbyn M, Senthil T, Lee P. 2012. Paired chiral spin liquid with
a Fermi surface in S=1 model on the triangular lattice. Physical Review B - Condensed
Matter and Materials Physics. 86(22).
mla: Bieri, Samuel, et al. “Paired Chiral Spin Liquid with a Fermi Surface in S=1
Model on the Triangular Lattice.” Physical Review B - Condensed Matter and
Materials Physics, vol. 86, no. 22, American Physical Society, 2012, doi:10.1103/PhysRevB.86.224409.
short: S. Bieri, M. Serbyn, T. Senthil, P. Lee, Physical Review B - Condensed Matter
and Materials Physics 86 (2012).
date_created: 2018-12-11T11:49:27Z
date_published: 2012-12-13T00:00:00Z
date_updated: 2021-01-12T08:22:18Z
day: '13'
doi: 10.1103/PhysRevB.86.224409
extern: 1
intvolume: ' 86'
issue: '22'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1208.3231
month: '12'
oa: 1
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6431'
quality_controlled: 0
status: public
title: Paired chiral spin liquid with a Fermi surface in S=1 model on the triangular
lattice
type: journal_article
volume: 86
year: '2012'
...
---
_id: '9755'
abstract:
- lang: eng
text: Due to the omnipresent risk of epidemics, insect societies have evolved sophisticated
disease defences at the individual and colony level. An intriguing yet little
understood phenomenon is that social contact to pathogen-exposed individuals reduces
susceptibility of previously naive nestmates to this pathogen. We tested whether
such social immunisation in Lasius ants against the entomopathogenic fungus Metarhizium
anisopliae is based on active upregulation of the immune system of nestmates following
contact to an infectious individual or passive protection via transfer of immune
effectors among group members—that is, active versus passive immunisation. We
found no evidence for involvement of passive immunisation via transfer of antimicrobials
among colony members. Instead, intensive allogrooming behaviour between naive
and pathogen-exposed ants before fungal conidia firmly attached to their cuticle
suggested passage of the pathogen from the exposed individuals to their nestmates.
By tracing fluorescence-labelled conidia we indeed detected frequent pathogen
transfer to the nestmates, where they caused low-level infections as revealed
by growth of small numbers of fungal colony forming units from their dissected
body content. These infections rarely led to death, but instead promoted an enhanced
ability to inhibit fungal growth and an active upregulation of immune genes involved
in antifungal defences (defensin and prophenoloxidase, PPO). Contrarily, there
was no upregulation of the gene cathepsin L, which is associated with antibacterial
and antiviral defences, and we found no increased antibacterial activity of nestmates
of fungus-exposed ants. This indicates that social immunisation after fungal exposure
is specific, similar to recent findings for individual-level immune priming in
invertebrates. Epidemiological modeling further suggests that active social immunisation
is adaptive, as it leads to faster elimination of the disease and lower death
rates than passive immunisation. Interestingly, humans have also utilised the
protective effect of low-level infections to fight smallpox by intentional transfer
of low pathogen doses (“variolation” or “inoculation”).
article_processing_charge: No
author:
- first_name: Matthias
full_name: Konrad, Matthias
id: 46528076-F248-11E8-B48F-1D18A9856A87
last_name: Konrad
- first_name: Meghan
full_name: Vyleta, Meghan
id: 418901AA-F248-11E8-B48F-1D18A9856A87
last_name: Vyleta
- first_name: Fabian
full_name: Theis, Fabian
last_name: Theis
- first_name: Miriam
full_name: Stock, Miriam
id: 42462816-F248-11E8-B48F-1D18A9856A87
last_name: Stock
- first_name: Martina
full_name: Klatt, Martina
id: E60F29C6-E9AE-11E9-AF6E-D190C7302F38
last_name: Klatt
- first_name: Verena
full_name: Drescher, Verena
last_name: Drescher
- first_name: Carsten
full_name: Marr, Carsten
last_name: Marr
- first_name: Line V
full_name: Ugelvig, Line V
id: 3DC97C8E-F248-11E8-B48F-1D18A9856A87
last_name: Ugelvig
orcid: 0000-0003-1832-8883
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: 'Konrad M, Vyleta M, Theis F, et al. Data from: Social transfer of pathogenic
fungus promotes active immunisation in ant colonies. 2012. doi:10.5061/dryad.sv37s'
apa: 'Konrad, M., Vyleta, M., Theis, F., Stock, M., Klatt, M., Drescher, V., … Cremer,
S. (2012). Data from: Social transfer of pathogenic fungus promotes active immunisation
in ant colonies. Dryad. https://doi.org/10.5061/dryad.sv37s'
chicago: 'Konrad, Matthias, Meghan Vyleta, Fabian Theis, Miriam Stock, Martina Klatt,
Verena Drescher, Carsten Marr, Line V Ugelvig, and Sylvia Cremer. “Data from:
Social Transfer of Pathogenic Fungus Promotes Active Immunisation in Ant Colonies.”
Dryad, 2012. https://doi.org/10.5061/dryad.sv37s.'
ieee: 'M. Konrad et al., “Data from: Social transfer of pathogenic fungus
promotes active immunisation in ant colonies.” Dryad, 2012.'
ista: 'Konrad M, Vyleta M, Theis F, Stock M, Klatt M, Drescher V, Marr C, Ugelvig
LV, Cremer S. 2012. Data from: Social transfer of pathogenic fungus promotes active
immunisation in ant colonies, Dryad, 10.5061/dryad.sv37s.'
mla: 'Konrad, Matthias, et al. Data from: Social Transfer of Pathogenic Fungus
Promotes Active Immunisation in Ant Colonies. Dryad, 2012, doi:10.5061/dryad.sv37s.'
short: M. Konrad, M. Vyleta, F. Theis, M. Stock, M. Klatt, V. Drescher, C. Marr,
L.V. Ugelvig, S. Cremer, (2012).
date_created: 2021-07-30T08:39:13Z
date_published: 2012-09-27T00:00:00Z
date_updated: 2025-09-30T07:50:00Z
day: '27'
department:
- _id: SyCr
doi: 10.5061/dryad.sv37s
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.sv37s
month: '09'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '3242'
relation: used_in_publication
status: public
status: public
title: 'Data from: Social transfer of pathogenic fungus promotes active immunisation
in ant colonies'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2012'
...
---
_id: '9757'
abstract:
- lang: eng
text: To fight infectious diseases, host immune defences are employed at multiple
levels. Sanitary behaviour, such as pathogen avoidance and removal, acts as a
first line of defence to prevent infection [1] before activation of the physiological
immune system. Insect societies have evolved a wide range of collective hygiene
measures and intensive health care towards pathogen-exposed group members [2].
One of the most common behaviours is allogrooming, in which nestmates remove infectious
particles from the body surfaces of exposed individuals [3]. Here we show that,
in invasive garden ants, grooming of fungus-exposed brood is effective beyond
the sheer mechanical removal of fungal conidiospores as it also includes chemical
disinfection through the application of poison produced by the ants themselves.
Formic acid is the main active component of the poison. It inhibits fungal growth
of conidiospores remaining on the brood surface after grooming and also those
collected in the mouth of the grooming ant. This dual function is achieved by
uptake of the poison droplet into the mouth through acidopore self-grooming and
subsequent application onto the infectious brood via brood grooming. This extraordinary
behaviour extends current understanding of grooming and the establishment of social
immunity in insect societies.
article_processing_charge: No
author:
- first_name: Simon
full_name: Tragust, Simon
id: 35A7A418-F248-11E8-B48F-1D18A9856A87
last_name: Tragust
- first_name: Barbara
full_name: Mitteregger, Barbara
id: 479DDAAC-E9CD-11E9-9B5F-82450873F7A1
last_name: Mitteregger
- first_name: Vanessa
full_name: Barone, Vanessa
id: 419EECCC-F248-11E8-B48F-1D18A9856A87
last_name: Barone
orcid: 0000-0003-2676-3367
- first_name: Matthias
full_name: Konrad, Matthias
id: 46528076-F248-11E8-B48F-1D18A9856A87
last_name: Konrad
- first_name: Line V
full_name: Ugelvig, Line V
id: 3DC97C8E-F248-11E8-B48F-1D18A9856A87
last_name: Ugelvig
orcid: 0000-0003-1832-8883
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: 'Tragust S, Mitteregger B, Barone V, Konrad M, Ugelvig LV, Cremer S. Data from:
Ants disinfect fungus-exposed brood by oral uptake and spread of their poison.
2012. doi:10.5061/dryad.61649'
apa: 'Tragust, S., Mitteregger, B., Barone, V., Konrad, M., Ugelvig, L. V., &
Cremer, S. (2012). Data from: Ants disinfect fungus-exposed brood by oral uptake
and spread of their poison. Dryad. https://doi.org/10.5061/dryad.61649'
chicago: 'Tragust, Simon, Barbara Mitteregger, Vanessa Barone, Matthias Konrad,
Line V Ugelvig, and Sylvia Cremer. “Data from: Ants Disinfect Fungus-Exposed Brood
by Oral Uptake and Spread of Their Poison.” Dryad, 2012. https://doi.org/10.5061/dryad.61649.'
ieee: 'S. Tragust, B. Mitteregger, V. Barone, M. Konrad, L. V. Ugelvig, and S. Cremer,
“Data from: Ants disinfect fungus-exposed brood by oral uptake and spread of their
poison.” Dryad, 2012.'
ista: 'Tragust S, Mitteregger B, Barone V, Konrad M, Ugelvig LV, Cremer S. 2012.
Data from: Ants disinfect fungus-exposed brood by oral uptake and spread of their
poison, Dryad, 10.5061/dryad.61649.'
mla: 'Tragust, Simon, et al. Data from: Ants Disinfect Fungus-Exposed Brood by
Oral Uptake and Spread of Their Poison. Dryad, 2012, doi:10.5061/dryad.61649.'
short: S. Tragust, B. Mitteregger, V. Barone, M. Konrad, L.V. Ugelvig, S. Cremer,
(2012).
date_created: 2021-07-30T12:31:31Z
date_published: 2012-12-14T00:00:00Z
date_updated: 2025-09-30T08:15:49Z
day: '14'
department:
- _id: SyCr
doi: 10.5061/dryad.61649
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.61649
month: '12'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2926'
relation: used_in_publication
status: public
status: public
title: 'Data from: Ants disinfect fungus-exposed brood by oral uptake and spread of
their poison'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2012'
...
---
_id: '9758'
abstract:
- lang: eng
text: 'We propose a two-step procedure for estimating multiple migration rates in
an approximate Bayesian computation (ABC) framework, accounting for global nuisance
parameters. The approach is not limited to migration, but generally of interest
for inference problems with multiple parameters and a modular structure (e.g.
independent sets of demes or loci). We condition on a known, but complex demographic
model of a spatially subdivided population, motivated by the reintroduction of
Alpine ibex (Capra ibex) into Switzerland. In the first step, the global parameters
ancestral mutation rate and male mating skew have been estimated for the whole
population in Aeschbacher et al. (Genetics 2012; 192: 1027). In the second step,
we estimate in this study the migration rates independently for clusters of demes
putatively connected by migration. For large clusters (many migration rates),
ABC faces the problem of too many summary statistics. We therefore assess by simulation
if estimation per pair of demes is a valid alternative. We find that the trade-off
between reduced dimensionality for the pairwise estimation on the one hand and
lower accuracy due to the assumption of pairwise independence on the other depends
on the number of migration rates to be inferred: the accuracy of the pairwise
approach increases with the number of parameters, relative to the joint estimation
approach. To distinguish between low and zero migration, we perform ABC-type model
comparison between a model with migration and one without. Applying the approach
to microsatellite data from Alpine ibex, we find no evidence for substantial gene
flow via migration, except for one pair of demes in one direction.'
article_processing_charge: No
author:
- first_name: Simon
full_name: Aeschbacher, Simon
id: 2D35326E-F248-11E8-B48F-1D18A9856A87
last_name: Aeschbacher
- first_name: Andreas
full_name: Futschik, Andreas
last_name: Futschik
- first_name: Mark
full_name: Beaumont, Mark
last_name: Beaumont
citation:
ama: 'Aeschbacher S, Futschik A, Beaumont M. Data from: Approximate Bayesian computation
for modular inference problems with many parameters: the example of migration
rates. 2012. doi:10.5061/dryad.274b1'
apa: 'Aeschbacher, S., Futschik, A., & Beaumont, M. (2012). Data from: Approximate
Bayesian computation for modular inference problems with many parameters: the
example of migration rates. Dryad. https://doi.org/10.5061/dryad.274b1'
chicago: 'Aeschbacher, Simon, Andreas Futschik, and Mark Beaumont. “Data from: Approximate
Bayesian Computation for Modular Inference Problems with Many Parameters: The
Example of Migration Rates.” Dryad, 2012. https://doi.org/10.5061/dryad.274b1.'
ieee: 'S. Aeschbacher, A. Futschik, and M. Beaumont, “Data from: Approximate Bayesian
computation for modular inference problems with many parameters: the example of
migration rates.” Dryad, 2012.'
ista: 'Aeschbacher S, Futschik A, Beaumont M. 2012. Data from: Approximate Bayesian
computation for modular inference problems with many parameters: the example of
migration rates, Dryad, 10.5061/dryad.274b1.'
mla: 'Aeschbacher, Simon, et al. Data from: Approximate Bayesian Computation
for Modular Inference Problems with Many Parameters: The Example of Migration
Rates. Dryad, 2012, doi:10.5061/dryad.274b1.'
short: S. Aeschbacher, A. Futschik, M. Beaumont, (2012).
date_created: 2021-07-30T12:36:39Z
date_published: 2012-11-14T00:00:00Z
date_updated: 2025-09-29T13:25:35Z
day: '14'
department:
- _id: NiBa
doi: 10.5061/dryad.274b1
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.274b1
month: '11'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2944'
relation: used_in_publication
status: public
status: public
title: 'Data from: Approximate Bayesian computation for modular inference problems
with many parameters: the example of migration rates'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2012'
...
---
OA_place: publisher
_id: '6588'
abstract:
- lang: eng
text: First we note that the best polynomial approximation to vertical bar x vertical
bar on the set, which consists of an interval on the positive half-axis and a
point on the negative half-axis, can be given by means of the classical Chebyshev
polynomials. Then we explore the cases when a solution of the related problem
on two intervals can be given in elementary functions.
acknowledgement: "This work is supported by the Austrian Science Fund (FWF), Project
P22025-N18.\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Florian
full_name: Pausinger, Florian
id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
last_name: Pausinger
orcid: 0000-0002-8379-3768
citation:
ama: Pausinger F. Elementary solutions of the Bernstein problem on two intervals.
Journal of Mathematical Physics, Analysis, Geometry. 2012;8(1):63-78.
apa: Pausinger, F. (2012). Elementary solutions of the Bernstein problem on two
intervals. Journal of Mathematical Physics, Analysis, Geometry. B. Verkin
Institute for Low Temperature Physics and Engineering.
chicago: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two
Intervals.” Journal of Mathematical Physics, Analysis, Geometry. B. Verkin
Institute for Low Temperature Physics and Engineering, 2012.
ieee: F. Pausinger, “Elementary solutions of the Bernstein problem on two intervals,”
Journal of Mathematical Physics, Analysis, Geometry, vol. 8, no. 1. B.
Verkin Institute for Low Temperature Physics and Engineering, pp. 63–78, 2012.
ista: Pausinger F. 2012. Elementary solutions of the Bernstein problem on two intervals.
Journal of Mathematical Physics, Analysis, Geometry. 8(1), 63–78.
mla: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two Intervals.”
Journal of Mathematical Physics, Analysis, Geometry, vol. 8, no. 1, B.
Verkin Institute for Low Temperature Physics and Engineering, 2012, pp. 63–78.
short: F. Pausinger, Journal of Mathematical Physics, Analysis, Geometry 8 (2012)
63–78.
corr_author: '1'
date_created: 2019-06-27T08:16:56Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2026-06-18T19:08:51Z
day: '01'
ddc:
- '500'
department:
- _id: HeEd
external_id:
isi:
- '000301173600004'
intvolume: ' 8'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mathnet.ru/eng/jmag525
month: '01'
oa: 1
oa_version: Published Version
page: 63-78
publication: Journal of Mathematical Physics, Analysis, Geometry
publication_identifier:
issn:
- 1812-9471
publication_status: published
publisher: B. Verkin Institute for Low Temperature Physics and Engineering
quality_controlled: '1'
scopus_import: '1'
status: public
title: Elementary solutions of the Bernstein problem on two intervals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2012'
...
---
_id: '6746'
abstract:
- lang: eng
text: This paper proposes a novel cooperative approach for two-hop amplify-and-forward
(A&F) relaying that exploits both the signal forwarded by the relay and the one
directly transmitted by the source in impulse-radio ultra-wideband (IR-UWB) systems.
Specifically, we focus on a non-coherent setup employing a double-differential
encoding scheme at the source node and a single differential demodulation at the
relay and destination. The log-likelihood ratio based decision rule is derived
at the destination node. A semi-analytical power allocation strategy is presented
by evaluating a closed-form expression for the effective signal to noise ratio
(SNR) at the destination, which is maximized by exhaustive search. Numerical simulations
show that the proposed system outperforms both the direct transmission with single
differential encoding and the non-cooperative multi-hop approach in different
scenarios.
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Qi
full_name: Zhou, Qi
last_name: Zhou
- first_name: Xiaoli
full_name: Ma, Xiaoli
last_name: Ma
- first_name: Vincenzo
full_name: Lottici, Vincenzo
last_name: Lottici
citation:
ama: 'Mondelli M, Zhou Q, Ma X, Lottici V. A cooperative approach for amplify-and-forward
differential transmitted reference IR-UWB relay systems. In: 2012 IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE; 2012:2905-2908.
doi:10.1109/icassp.2012.6288524'
apa: 'Mondelli, M., Zhou, Q., Ma, X., & Lottici, V. (2012). A cooperative approach
for amplify-and-forward differential transmitted reference IR-UWB relay systems.
In 2012 IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP) (pp. 2905–2908). Kyoto, Japan: IEEE. https://doi.org/10.1109/icassp.2012.6288524'
chicago: Mondelli, Marco, Qi Zhou, Xiaoli Ma, and Vincenzo Lottici. “A Cooperative
Approach for Amplify-and-Forward Differential Transmitted Reference IR-UWB Relay
Systems.” In 2012 IEEE International Conference on Acoustics, Speech and Signal
Processing (ICASSP), 2905–8. IEEE, 2012. https://doi.org/10.1109/icassp.2012.6288524.
ieee: M. Mondelli, Q. Zhou, X. Ma, and V. Lottici, “A cooperative approach for amplify-and-forward
differential transmitted reference IR-UWB relay systems,” in 2012 IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP), Kyoto, Japan,
2012, pp. 2905–2908.
ista: 'Mondelli M, Zhou Q, Ma X, Lottici V. 2012. A cooperative approach for amplify-and-forward
differential transmitted reference IR-UWB relay systems. 2012 IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP). ICASSP: International
Conference on Acoustics, Speech and Signal Processing, 2905–2908.'
mla: Mondelli, Marco, et al. “A Cooperative Approach for Amplify-and-Forward Differential
Transmitted Reference IR-UWB Relay Systems.” 2012 IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2012, pp. 2905–08,
doi:10.1109/icassp.2012.6288524.
short: M. Mondelli, Q. Zhou, X. Ma, V. Lottici, in:, 2012 IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2012, pp. 2905–2908.
conference:
end_date: 2012-03-30
location: Kyoto, Japan
name: 'ICASSP: International Conference on Acoustics, Speech and Signal Processing'
start_date: 2012-03-25
date_created: 2019-07-31T09:14:48Z
date_published: 2012-07-31T00:00:00Z
date_updated: 2021-01-12T08:08:49Z
day: '31'
doi: 10.1109/icassp.2012.6288524
extern: '1'
language:
- iso: eng
month: '07'
oa_version: None
page: 2905-2908
publication: 2012 IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP)
publication_identifier:
issn:
- 1520-6149
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: A cooperative approach for amplify-and-forward differential transmitted reference
IR-UWB relay systems
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '7074'
abstract:
- lang: eng
text: The Seebeck coefficients, electrical resistivities, total thermal conductivities,
and magnetization are reported for temperatures between 5 and 350 K for n-type
Bi0.88Sb0.12 nano-composite alloys made by Ho-doping at the 0, 1, and 3 % atomic
levels. The alloys were prepared using a dc hot-pressing method, and are shown
to be single phase for both Ho contents with grain sizes on the average of 900
nm. We find the parent compound has a maximum of ZT = 0.28 at 231 K, while doping
1 % Ho increases the maximum ZT to 0.31 at 221 K and the 3 % doped sample suppresses
the maximum ZT = 0.24 at a temperature of 260 K.
article_processing_charge: No
article_type: original
author:
- first_name: K. C.
full_name: Lukas, K. C.
last_name: Lukas
- first_name: G.
full_name: Joshi, G.
last_name: Joshi
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Z. F.
full_name: Ren, Z. F.
last_name: Ren
- first_name: C. P.
full_name: Opeil, C. P.
last_name: Opeil
citation:
ama: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. Thermoelectric properties of
Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 2012;47(15):5729-5734.
doi:10.1007/s10853-012-6463-6
apa: Lukas, K. C., Joshi, G., Modic, K. A., Ren, Z. F., & Opeil, C. P. (2012).
Thermoelectric properties of Ho-doped Bi0.88Sb0.12. Journal of Materials Science.
Springer Nature. https://doi.org/10.1007/s10853-012-6463-6
chicago: Lukas, K. C., G. Joshi, Kimberly A Modic, Z. F. Ren, and C. P. Opeil. “Thermoelectric
Properties of Ho-Doped Bi0.88Sb0.12.” Journal of Materials Science. Springer
Nature, 2012. https://doi.org/10.1007/s10853-012-6463-6.
ieee: K. C. Lukas, G. Joshi, K. A. Modic, Z. F. Ren, and C. P. Opeil, “Thermoelectric
properties of Ho-doped Bi0.88Sb0.12,” Journal of Materials Science, vol.
47, no. 15. Springer Nature, pp. 5729–5734, 2012.
ista: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. 2012. Thermoelectric properties
of Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 47(15), 5729–5734.
mla: Lukas, K. C., et al. “Thermoelectric Properties of Ho-Doped Bi0.88Sb0.12.”
Journal of Materials Science, vol. 47, no. 15, Springer Nature, 2012, pp.
5729–34, doi:10.1007/s10853-012-6463-6.
short: K.C. Lukas, G. Joshi, K.A. Modic, Z.F. Ren, C.P. Opeil, Journal of Materials
Science 47 (2012) 5729–5734.
date_created: 2019-11-19T13:36:54Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2021-01-12T08:11:43Z
day: '01'
doi: 10.1007/s10853-012-6463-6
extern: '1'
intvolume: ' 47'
issue: '15'
language:
- iso: eng
month: '08'
oa_version: None
page: 5729-5734
publication: Journal of Materials Science
publication_identifier:
eissn:
- 1573-4803
issn:
- 0022-2461
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Thermoelectric properties of Ho-doped Bi0.88Sb0.12
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '7308'
abstract:
- lang: eng
text: 'Carbon has been used widely as the basis of porous cathodes for nonaqueous
Li–O2 cells. However, the stability of carbon and the effect of carbon on electrolyte
decomposition in such cells are complex and depend on the hydrophobicity/hydrophilicity
of the carbon surface. Analyzing carbon cathodes, cycled in Li–O2 cells between
2 and 4 V, using acid treatment and Fenton’s reagent, and combined with differential
electrochemical mass spectrometry and FTIR, demonstrates the following: Carbon
is relatively stable below 3.5 V (vs Li/Li+) on discharge or charge, especially
so for hydrophobic carbon, but is unstable on charging above 3.5 V (in the presence
of Li2O2), oxidatively decomposing to form Li2CO3. Direct chemical reaction with
Li2O2 accounts for only a small proportion of the total carbon decomposition on
cycling. Carbon promotes electrolyte decomposition during discharge and charge
in a Li–O2 cell, giving rise to Li2CO3 and Li carboxylates (DMSO and tetraglyme
electrolytes). The Li2CO3 and Li carboxylates present at the end of discharge
and those that form on charge result in polarization on the subsequent charge.
Li2CO3 (derived from carbon and from the electrolyte) as well as the Li carboxylates
(derived from the electrolyte) decompose and form on charging. Oxidation of Li2CO3
on charging to ∼4 V is incomplete; Li2CO3 accumulates on cycling resulting in
electrode passivation and capacity fading. Hydrophilic carbon is less stable and
more catalytically active toward electrolyte decomposition than carbon with a
hydrophobic surface. If the Li–O2 cell could be charged at or below 3.5 V, then
carbon may be relatively stable, however, its ability to promote electrolyte decomposition,
presenting problems for its use in a practical Li–O2 battery. The results emphasize
that stable cycling of Li2O2 at the cathode in a Li–O2 cell depends on the synergy
between electrolyte and electrode; the stability of the electrode and the electrolyte
cannot be considered in isolation.'
article_processing_charge: No
article_type: original
author:
- first_name: Muhammed M.
full_name: Ottakam Thotiyl, Muhammed M.
last_name: Ottakam Thotiyl
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Zhangquan
full_name: Peng, Zhangquan
last_name: Peng
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Ottakam Thotiyl MM, Freunberger SA, Peng Z, Bruce PG. The carbon electrode
in nonaqueous Li–O2 cells. Journal of the American Chemical Society. 2012;135(1):494-500.
doi:10.1021/ja310258x
apa: Ottakam Thotiyl, M. M., Freunberger, S. A., Peng, Z., & Bruce, P. G. (2012).
The carbon electrode in nonaqueous Li–O2 cells. Journal of the American Chemical
Society. ACS. https://doi.org/10.1021/ja310258x
chicago: Ottakam Thotiyl, Muhammed M., Stefan Alexander Freunberger, Zhangquan Peng,
and Peter G. Bruce. “The Carbon Electrode in Nonaqueous Li–O2 Cells.” Journal
of the American Chemical Society. ACS, 2012. https://doi.org/10.1021/ja310258x.
ieee: M. M. Ottakam Thotiyl, S. A. Freunberger, Z. Peng, and P. G. Bruce, “The carbon
electrode in nonaqueous Li–O2 cells,” Journal of the American Chemical Society,
vol. 135, no. 1. ACS, pp. 494–500, 2012.
ista: Ottakam Thotiyl MM, Freunberger SA, Peng Z, Bruce PG. 2012. The carbon electrode
in nonaqueous Li–O2 cells. Journal of the American Chemical Society. 135(1), 494–500.
mla: Ottakam Thotiyl, Muhammed M., et al. “The Carbon Electrode in Nonaqueous Li–O2
Cells.” Journal of the American Chemical Society, vol. 135, no. 1, ACS,
2012, pp. 494–500, doi:10.1021/ja310258x.
short: M.M. Ottakam Thotiyl, S.A. Freunberger, Z. Peng, P.G. Bruce, Journal of the
American Chemical Society 135 (2012) 494–500.
date_created: 2020-01-15T12:18:57Z
date_published: 2012-11-28T00:00:00Z
date_updated: 2021-01-12T08:12:56Z
day: '28'
doi: 10.1021/ja310258x
extern: '1'
intvolume: ' 135'
issue: '1'
language:
- iso: eng
month: '11'
oa_version: None
page: 494-500
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: The carbon electrode in nonaqueous Li–O2 cells
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 135
year: '2012'
...
---
_id: '7309'
abstract:
- lang: eng
text: Energy‐storage technologies, including electrical double‐layer capacitors
and rechargeable batteries, have attracted significant attention for applications
in portable electronic devices, electric vehicles, bulk electricity storage at
power stations, and “load leveling” of renewable sources, such as solar energy
and wind power. Transforming lithium batteries and electric double‐layer capacitors
requires a step change in the science underpinning these devices, including the
discovery of new materials, new electrochemistry, and an increased understanding
of the processes on which the devices depend. The Review will consider some of
the current scientific issues underpinning lithium batteries and electric double‐layer
capacitors.
article_processing_charge: No
article_type: original
author:
- first_name: Nam-Soon
full_name: Choi, Nam-Soon
last_name: Choi
- first_name: Zonghai
full_name: Chen, Zonghai
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Xiulei
full_name: Ji, Xiulei
last_name: Ji
- first_name: Yang-Kook
full_name: Sun, Yang-Kook
last_name: Sun
- first_name: Khalil
full_name: Amine, Khalil
last_name: Amine
- first_name: Gleb
full_name: Yushin, Gleb
last_name: Yushin
- first_name: Linda F.
full_name: Nazar, Linda F.
last_name: Nazar
- first_name: Jaephil
full_name: Cho, Jaephil
last_name: Cho
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Choi N-S, Chen Z, Freunberger SA, et al. Challenges facing Lithium batteries
and electrical double-layer capacitors. Angewandte Chemie International Edition.
2012;51(40):9994-10024. doi:10.1002/anie.201201429
apa: Choi, N.-S., Chen, Z., Freunberger, S. A., Ji, X., Sun, Y.-K., Amine, K., …
Bruce, P. G. (2012). Challenges facing Lithium batteries and electrical double-layer
capacitors. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201201429
chicago: Choi, Nam-Soon, Zonghai Chen, Stefan Alexander Freunberger, Xiulei Ji,
Yang-Kook Sun, Khalil Amine, Gleb Yushin, Linda F. Nazar, Jaephil Cho, and Peter
G. Bruce. “Challenges Facing Lithium Batteries and Electrical Double-Layer Capacitors.”
Angewandte Chemie International Edition. Wiley, 2012. https://doi.org/10.1002/anie.201201429.
ieee: N.-S. Choi et al., “Challenges facing Lithium batteries and electrical
double-layer capacitors,” Angewandte Chemie International Edition, vol.
51, no. 40. Wiley, pp. 9994–10024, 2012.
ista: Choi N-S, Chen Z, Freunberger SA, Ji X, Sun Y-K, Amine K, Yushin G, Nazar
LF, Cho J, Bruce PG. 2012. Challenges facing Lithium batteries and electrical
double-layer capacitors. Angewandte Chemie International Edition. 51(40), 9994–10024.
mla: Choi, Nam-Soon, et al. “Challenges Facing Lithium Batteries and Electrical
Double-Layer Capacitors.” Angewandte Chemie International Edition, vol.
51, no. 40, Wiley, 2012, pp. 9994–10024, doi:10.1002/anie.201201429.
short: N.-S. Choi, Z. Chen, S.A. Freunberger, X. Ji, Y.-K. Sun, K. Amine, G. Yushin,
L.F. Nazar, J. Cho, P.G. Bruce, Angewandte Chemie International Edition 51 (2012)
9994–10024.
date_created: 2020-01-15T12:19:11Z
date_published: 2012-10-01T00:00:00Z
date_updated: 2021-01-12T08:12:56Z
day: '01'
doi: 10.1002/anie.201201429
extern: '1'
intvolume: ' 51'
issue: '40'
language:
- iso: eng
month: '10'
oa_version: None
page: 9994-10024
publication: Angewandte Chemie International Edition
publication_identifier:
issn:
- 1433-7851
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Challenges facing Lithium batteries and electrical double-layer capacitors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 51
year: '2012'
...
---
_id: '7310'
abstract:
- lang: eng
text: The rechargeable nonaqueous lithium-air (Li-O2) battery is receiving a great
deal of interest because, theoretically, its specific energy far exceeds the best
that can be achieved with lithium-ion cells. Operation of the rechargeable Li-O2
battery depends critically on repeated and highly reversible formation/decomposition
of lithium peroxide (Li2O2) at the cathode upon cycling. Here, we show that this
process is possible with the use of a dimethyl sulfoxide electrolyte and a porous
gold electrode (95% capacity retention from cycles 1 to 100), whereas previously
only partial Li2O2 formation/decomposition and limited cycling could occur. Furthermore,
we present data indicating that the kinetics of Li2O2 oxidation on charge is approximately
10 times faster than on carbon electrodes.
article_processing_charge: No
article_type: original
author:
- first_name: Z.
full_name: Peng, Z.
last_name: Peng
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Y.
full_name: Chen, Y.
last_name: Chen
- first_name: P. G.
full_name: Bruce, P. G.
last_name: Bruce
citation:
ama: Peng Z, Freunberger SA, Chen Y, Bruce PG. A reversible and higher-rate Li-O2
battery. Science. 2012;337(6094):563-566. doi:10.1126/science.1223985
apa: Peng, Z., Freunberger, S. A., Chen, Y., & Bruce, P. G. (2012). A reversible
and higher-rate Li-O2 battery. Science. AAAS. https://doi.org/10.1126/science.1223985
chicago: Peng, Z., Stefan Alexander Freunberger, Y. Chen, and P. G. Bruce. “A Reversible
and Higher-Rate Li-O2 Battery.” Science. AAAS, 2012. https://doi.org/10.1126/science.1223985.
ieee: Z. Peng, S. A. Freunberger, Y. Chen, and P. G. Bruce, “A reversible and higher-rate
Li-O2 battery,” Science, vol. 337, no. 6094. AAAS, pp. 563–566, 2012.
ista: Peng Z, Freunberger SA, Chen Y, Bruce PG. 2012. A reversible and higher-rate
Li-O2 battery. Science. 337(6094), 563–566.
mla: Peng, Z., et al. “A Reversible and Higher-Rate Li-O2 Battery.” Science,
vol. 337, no. 6094, AAAS, 2012, pp. 563–66, doi:10.1126/science.1223985.
short: Z. Peng, S.A. Freunberger, Y. Chen, P.G. Bruce, Science 337 (2012) 563–566.
date_created: 2020-01-15T12:19:23Z
date_published: 2012-08-03T00:00:00Z
date_updated: 2021-01-12T08:12:57Z
day: '03'
doi: 10.1126/science.1223985
extern: '1'
intvolume: ' 337'
issue: '6094'
language:
- iso: eng
month: '08'
oa_version: None
page: 563-566
publication: Science
publication_identifier:
issn:
- 0036-8075
- 1095-9203
publication_status: published
publisher: AAAS
quality_controlled: '1'
status: public
title: A reversible and higher-rate Li-O2 battery
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 337
year: '2012'
...
---
_id: '7311'
abstract:
- lang: eng
text: Stability of the electrolyte toward reduced oxygen species generated at the
cathode is a crucial challenge for the rechargeable nonaqueous Li–O2 battery.
Here, we investigate dimethylformamide as the basis of an electrolyte. Although
reactions at the O2 cathode on the first discharge–charge cycle are dominated
by reversible Li2O2 formation/decomposition, there is also electrolyte decomposition,
which increases on cycling. The products of decomposition at the cathode on discharge
are Li2O2, Li2CO3, HCO2Li, CH3CO2Li, NO, H2O, and CO2. Li2CO3 accumulates in the
electrode with cycling. The stability of dimethylformamide toward reduced oxygen
species is insufficient for its use in the rechargeable nonaqueous Li–O2 battery.
article_processing_charge: No
article_type: original
author:
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Zhangquan
full_name: Peng, Zhangquan
last_name: Peng
- first_name: Fanny
full_name: Bardé, Fanny
last_name: Bardé
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Chen Y, Freunberger SA, Peng Z, Bardé F, Bruce PG. Li–O2 battery with a dimethylformamide
electrolyte. Journal of the American Chemical Society. 2012;134(18):7952-7957.
doi:10.1021/ja302178w
apa: Chen, Y., Freunberger, S. A., Peng, Z., Bardé, F., & Bruce, P. G. (2012).
Li–O2 battery with a dimethylformamide electrolyte. Journal of the American
Chemical Society. ACS. https://doi.org/10.1021/ja302178w
chicago: Chen, Yuhui, Stefan Alexander Freunberger, Zhangquan Peng, Fanny Bardé,
and Peter G. Bruce. “Li–O2 Battery with a Dimethylformamide Electrolyte.” Journal
of the American Chemical Society. ACS, 2012. https://doi.org/10.1021/ja302178w.
ieee: Y. Chen, S. A. Freunberger, Z. Peng, F. Bardé, and P. G. Bruce, “Li–O2 battery
with a dimethylformamide electrolyte,” Journal of the American Chemical Society,
vol. 134, no. 18. ACS, pp. 7952–7957, 2012.
ista: Chen Y, Freunberger SA, Peng Z, Bardé F, Bruce PG. 2012. Li–O2 battery with
a dimethylformamide electrolyte. Journal of the American Chemical Society. 134(18),
7952–7957.
mla: Chen, Yuhui, et al. “Li–O2 Battery with a Dimethylformamide Electrolyte.” Journal
of the American Chemical Society, vol. 134, no. 18, ACS, 2012, pp. 7952–57,
doi:10.1021/ja302178w.
short: Y. Chen, S.A. Freunberger, Z. Peng, F. Bardé, P.G. Bruce, Journal of the
American Chemical Society 134 (2012) 7952–7957.
date_created: 2020-01-15T12:19:36Z
date_published: 2012-04-19T00:00:00Z
date_updated: 2021-01-12T08:12:58Z
day: '19'
doi: 10.1021/ja302178w
extern: '1'
intvolume: ' 134'
issue: '18'
language:
- iso: eng
month: '04'
oa_version: None
page: 7952-7957
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Li–O2 battery with a dimethylformamide electrolyte
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 134
year: '2012'
...
---
_id: '3104'
abstract:
- lang: eng
text: |2-
Gradients of the plant hormone auxin, which depend on its active intercellular transport, are crucial for the maintenance of root meristematic activity. This directional transport is largely orchestrated by a complex interaction of specific influx and efflux carriers that mediate the auxin flow into and out of cells, respectively. Besides these transport proteins, plant-specific polyphenolic compounds knownasflavonols have beenshownto act as endogenous regulators of auxin transport. However, only limited information is available on how flavonol synthesis is developmentally regulated. Using reduction-of-function and overexpression approaches in parallel, we demonstrate that the WRKY23 transcription factor is needed for proper root growth and development by stimulating the local biosynthesis of flavonols. The expression of WRKY23 itself is controlled by auxin through the AUXIN RESPONSE FACTOR 7 (ARF7) and ARF19 transcriptional response pathway. Our results suggest a model in which WRKY23 is part of a transcriptional feedback loop of auxin on its own transport through local regulation of flavonol biosynthesis.
author:
- first_name: Wim
full_name: Grunewald, Wim
last_name: Grunewald
- first_name: Ive
full_name: De Smet, Ive
last_name: De Smet
- first_name: Daniel
full_name: Lewis, Daniel R
last_name: Lewis
- first_name: Christian
full_name: Löfke, Christian
last_name: Löfke
- first_name: Leentje
full_name: Jansen, Leentje
last_name: Jansen
- first_name: Geert
full_name: Goeminne, Geert
last_name: Goeminne
- first_name: Robin
full_name: Vanden Bossche, Robin
last_name: Vanden Bossche
- first_name: Mansour
full_name: Karimi, Mansour
last_name: Karimi
- first_name: Bert
full_name: De Rybel, Bert
last_name: De Rybel
- first_name: Bartel
full_name: Vanholme, Bartel
last_name: Vanholme
- first_name: Thomas
full_name: Teichmann, Thomas
last_name: Teichmann
- first_name: Wout
full_name: Boerjan, Wout
last_name: Boerjan
- first_name: Marc
full_name: Van Montagu, Marc C
last_name: Van Montagu
- first_name: Godelieve
full_name: Gheysen, Godelieve
last_name: Gheysen
- first_name: Gloria
full_name: Muday, Gloria K
last_name: Muday
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Tom
full_name: Beeckman, Tom
last_name: Beeckman
citation:
ama: Grunewald W, De Smet I, Lewis D, et al. Transcription factor WRKY23 assists
auxin distribution patterns during Arabidopsis root development through local
control on flavonol biosynthesis. PNAS. 2012;109(5):1554-1559. doi:10.1073/pnas.1121134109
apa: Grunewald, W., De Smet, I., Lewis, D., Löfke, C., Jansen, L., Goeminne, G.,
… Beeckman, T. (2012). Transcription factor WRKY23 assists auxin distribution
patterns during Arabidopsis root development through local control on flavonol
biosynthesis. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1121134109
chicago: Grunewald, Wim, Ive De Smet, Daniel Lewis, Christian Löfke, Leentje Jansen,
Geert Goeminne, Robin Vanden Bossche, et al. “Transcription Factor WRKY23 Assists
Auxin Distribution Patterns during Arabidopsis Root Development through Local
Control on Flavonol Biosynthesis.” PNAS. National Academy of Sciences,
2012. https://doi.org/10.1073/pnas.1121134109.
ieee: W. Grunewald et al., “Transcription factor WRKY23 assists auxin distribution
patterns during Arabidopsis root development through local control on flavonol
biosynthesis,” PNAS, vol. 109, no. 5. National Academy of Sciences, pp.
1554–1559, 2012.
ista: Grunewald W, De Smet I, Lewis D, Löfke C, Jansen L, Goeminne G, Vanden Bossche
R, Karimi M, De Rybel B, Vanholme B, Teichmann T, Boerjan W, Van Montagu M, Gheysen
G, Muday G, Friml J, Beeckman T. 2012. Transcription factor WRKY23 assists auxin
distribution patterns during Arabidopsis root development through local control
on flavonol biosynthesis. PNAS. 109(5), 1554–1559.
mla: Grunewald, Wim, et al. “Transcription Factor WRKY23 Assists Auxin Distribution
Patterns during Arabidopsis Root Development through Local Control on Flavonol
Biosynthesis.” PNAS, vol. 109, no. 5, National Academy of Sciences, 2012,
pp. 1554–59, doi:10.1073/pnas.1121134109.
short: W. Grunewald, I. De Smet, D. Lewis, C. Löfke, L. Jansen, G. Goeminne, R.
Vanden Bossche, M. Karimi, B. De Rybel, B. Vanholme, T. Teichmann, W. Boerjan,
M. Van Montagu, G. Gheysen, G. Muday, J. Friml, T. Beeckman, PNAS 109 (2012) 1554–1559.
date_created: 2018-12-11T12:01:24Z
date_published: 2012-01-31T00:00:00Z
date_updated: 2021-01-12T07:41:05Z
day: '31'
doi: 10.1073/pnas.1121134109
extern: 1
intvolume: ' 109'
issue: '5'
month: '01'
page: 1554 - 1559
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '3595'
quality_controlled: 0
status: public
title: Transcription factor WRKY23 assists auxin distribution patterns during Arabidopsis
root development through local control on flavonol biosynthesis
type: journal_article
volume: 109
year: '2012'
...
---
_id: '3105'
abstract:
- lang: eng
text: Growth and development are coordinated by an array of intercellular communications.
Known plant signaling molecules include phytohormones and hormone peptides. Although
both classes can be implicated in the same developmental processes, little is
known about the interplay between phytohormone action and peptide signaling within
the cellular microenvironment. We show that genes coding for small secretory peptides,
designated GOLVEN (GLV), modulate the distribution of the phytohormone auxin.
The deregulation of the GLV function impairs the formation of auxin gradients
and alters the reorientation of shoots and roots after a gravity stimulus. Specifically,
the GLV signal modulates the trafficking dynamics of the auxin efflux carrier
PIN-FORMED2 involved in root tropic responses and meristem organization. Our work
links the local action of secretory peptides with phytohormone transport. Root
growth factor (RGF) or GOLVEN (GLV) secreted peptides have previously been implicated
in meristem regulation. Whitford et al. now show that RGF/GLV peptides induce
rapid relocalization of the auxin efflux regulator PIN2, regulate auxin gradients,
and modulate auxin-dependent root responses to specific stimuli.
author:
- first_name: Ryan
full_name: Whitford, Ryan
last_name: Whitford
- first_name: Ana
full_name: Fernandez, Ana
last_name: Fernandez
- first_name: Ricardo
full_name: Tejos, Ricardo
last_name: Tejos
- first_name: Amparo
full_name: Pérez, Amparo Cuéllar
last_name: Pérez
- first_name: Jürgen
full_name: Kleine-Vehn, Jürgen
last_name: Kleine Vehn
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Andrzej
full_name: Drozdzecki, Andrzej
last_name: Drozdzecki
- first_name: Johannes
full_name: Leitner, Johannes
last_name: Leitner
- first_name: Lindy
full_name: Abas, Lindy
last_name: Abas
- first_name: Maarten
full_name: Aerts, Maarten
last_name: Aerts
- first_name: Kurt
full_name: Hoogewijs, Kurt
last_name: Hoogewijs
- first_name: Pawel
full_name: Pawel Baster
id: 3028BD74-F248-11E8-B48F-1D18A9856A87
last_name: Baster
- first_name: Ruth
full_name: De Groodt, Ruth
last_name: De Groodt
- first_name: Yao
full_name: Lin, Yao-Cheng
last_name: Lin
- first_name: Véronique
full_name: Storme, Véronique
last_name: Storme
- first_name: Yves
full_name: Van de Peer, Yves
last_name: Van De Peer
- first_name: Tom
full_name: Beeckman, Tom
last_name: Beeckman
- first_name: Annemieke
full_name: Madder, Annemieke
last_name: Madder
- first_name: Bart
full_name: Devreese, Bart
last_name: Devreese
- first_name: Christian
full_name: Luschnig, Christian
last_name: Luschnig
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Pierre
full_name: Hilson, Pierre
last_name: Hilson
citation:
ama: Whitford R, Fernandez A, Tejos R, et al. GOLVEN secretory peptides regulate
auxin carrier turnover during plant gravitropic responses. Developmental Cell.
2012;22(3):678-685. doi:10.1016/j.devcel.2012.02.002
apa: Whitford, R., Fernandez, A., Tejos, R., Pérez, A., Kleine Vehn, J., Vanneste,
S., … Hilson, P. (2012). GOLVEN secretory peptides regulate auxin carrier turnover
during plant gravitropic responses. Developmental Cell. Cell Press. https://doi.org/10.1016/j.devcel.2012.02.002
chicago: Whitford, Ryan, Ana Fernandez, Ricardo Tejos, Amparo Pérez, Jürgen Kleine
Vehn, Steffen Vanneste, Andrzej Drozdzecki, et al. “GOLVEN Secretory Peptides
Regulate Auxin Carrier Turnover during Plant Gravitropic Responses.” Developmental
Cell. Cell Press, 2012. https://doi.org/10.1016/j.devcel.2012.02.002.
ieee: R. Whitford et al., “GOLVEN secretory peptides regulate auxin carrier
turnover during plant gravitropic responses,” Developmental Cell, vol.
22, no. 3. Cell Press, pp. 678–685, 2012.
ista: Whitford R, Fernandez A, Tejos R, Pérez A, Kleine Vehn J, Vanneste S, Drozdzecki
A, Leitner J, Abas L, Aerts M, Hoogewijs K, Baster P, De Groodt R, Lin Y, Storme
V, Van De Peer Y, Beeckman T, Madder A, Devreese B, Luschnig C, Friml J, Hilson
P. 2012. GOLVEN secretory peptides regulate auxin carrier turnover during plant
gravitropic responses. Developmental Cell. 22(3), 678–685.
mla: Whitford, Ryan, et al. “GOLVEN Secretory Peptides Regulate Auxin Carrier Turnover
during Plant Gravitropic Responses.” Developmental Cell, vol. 22, no. 3,
Cell Press, 2012, pp. 678–85, doi:10.1016/j.devcel.2012.02.002.
short: R. Whitford, A. Fernandez, R. Tejos, A. Pérez, J. Kleine Vehn, S. Vanneste,
A. Drozdzecki, J. Leitner, L. Abas, M. Aerts, K. Hoogewijs, P. Baster, R. De Groodt,
Y. Lin, V. Storme, Y. Van De Peer, T. Beeckman, A. Madder, B. Devreese, C. Luschnig,
J. Friml, P. Hilson, Developmental Cell 22 (2012) 678–685.
date_created: 2018-12-11T12:01:25Z
date_published: 2012-03-13T00:00:00Z
date_updated: 2021-01-12T07:41:06Z
day: '13'
doi: 10.1016/j.devcel.2012.02.002
extern: 1
intvolume: ' 22'
issue: '3'
month: '03'
page: 678 - 685
publication: Developmental Cell
publication_status: published
publisher: Cell Press
publist_id: '3594'
quality_controlled: 0
status: public
title: GOLVEN secretory peptides regulate auxin carrier turnover during plant gravitropic
responses
type: journal_article
volume: 22
year: '2012'
...
---
_id: '3106'
abstract:
- lang: eng
text: Cell polarization via asymmetrical distribution of structures or molecules
is essential for diverse cellular functions and development of organisms, but
how polarity is developmentally controlled has been poorly understood. In plants,
the asymmetrical distribution of the PIN-FORMED (PIN) proteins involved in the
cellular efflux of the quintessential phytohormone auxin plays a central role
in developmental patterning, morphogenesis, and differential growth. Recently
we showed that auxin promotes cell interdigitation by activating the Rho family
ROP GTPases in leaf epidermal pavement cells. Here we found that auxin activation
of the ROP2 signaling pathway regulates the asymmetric distribution of PIN1 by
inhibiting its endocytosis. ROP2 inhibits PIN1 endocytosis via the accumulation
of cortical actin microfilaments induced by the ROP2 effector protein RIC4. Our
findings suggest a link between the developmental auxin signal and polar PIN1
distribution via Rho-dependent cytoskeletal reorganization and reveal the conservation
of a design principle for cell polarization that is based on Rho GTPase-mediated
inhibition of endocytosis.
author:
- first_name: Shingo
full_name: Nagawa, Shingo
last_name: Nagawa
- first_name: Tongda
full_name: Xu, Tongda
last_name: Xu
- first_name: Deshu
full_name: Lin, Deshu
last_name: Lin
- first_name: Pankaj
full_name: Dhonukshe, Pankaj
last_name: Dhonukshe
- first_name: Xingxing
full_name: Zhang, Xingxing
last_name: Zhang
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Ben
full_name: Scheres, Ben
last_name: Scheres
- first_name: Ying
full_name: Fu, Ying
last_name: Fu
- first_name: Zhenbiao
full_name: Yang, Zhenbiao
last_name: Yang
citation:
ama: Nagawa S, Xu T, Lin D, et al. ROP GTPase-dependent actin microfilaments promote
PIN1 polarization by localized inhibition of clathrin-dependent endocytosis. PLoS
Biology. 2012;10(4). doi:10.1371/journal.pbio.1001299
apa: Nagawa, S., Xu, T., Lin, D., Dhonukshe, P., Zhang, X., Friml, J., … Yang, Z.
(2012). ROP GTPase-dependent actin microfilaments promote PIN1 polarization by
localized inhibition of clathrin-dependent endocytosis. PLoS Biology. Public
Library of Science. https://doi.org/10.1371/journal.pbio.1001299
chicago: Nagawa, Shingo, Tongda Xu, Deshu Lin, Pankaj Dhonukshe, Xingxing Zhang,
Jiří Friml, Ben Scheres, Ying Fu, and Zhenbiao Yang. “ROP GTPase-Dependent Actin
Microfilaments Promote PIN1 Polarization by Localized Inhibition of Clathrin-Dependent
Endocytosis.” PLoS Biology. Public Library of Science, 2012. https://doi.org/10.1371/journal.pbio.1001299.
ieee: S. Nagawa et al., “ROP GTPase-dependent actin microfilaments promote
PIN1 polarization by localized inhibition of clathrin-dependent endocytosis,”
PLoS Biology, vol. 10, no. 4. Public Library of Science, 2012.
ista: Nagawa S, Xu T, Lin D, Dhonukshe P, Zhang X, Friml J, Scheres B, Fu Y, Yang
Z. 2012. ROP GTPase-dependent actin microfilaments promote PIN1 polarization by
localized inhibition of clathrin-dependent endocytosis. PLoS Biology. 10(4).
mla: Nagawa, Shingo, et al. “ROP GTPase-Dependent Actin Microfilaments Promote PIN1
Polarization by Localized Inhibition of Clathrin-Dependent Endocytosis.” PLoS
Biology, vol. 10, no. 4, Public Library of Science, 2012, doi:10.1371/journal.pbio.1001299.
short: S. Nagawa, T. Xu, D. Lin, P. Dhonukshe, X. Zhang, J. Friml, B. Scheres, Y.
Fu, Z. Yang, PLoS Biology 10 (2012).
date_created: 2018-12-11T12:01:25Z
date_published: 2012-04-01T00:00:00Z
date_updated: 2021-01-12T07:41:06Z
day: '01'
doi: 10.1371/journal.pbio.1001299
extern: 1
intvolume: ' 10'
issue: '4'
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
publication: PLoS Biology
publication_status: published
publisher: Public Library of Science
publist_id: '3593'
quality_controlled: 0
status: public
title: ROP GTPase-dependent actin microfilaments promote PIN1 polarization by localized
inhibition of clathrin-dependent endocytosis
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
volume: 10
year: '2012'
...