---
_id: '14339'
abstract:
- lang: eng
text: Lateral roots are typically maintained at non-vertical angles with respect
to gravity. These gravitropic setpoint angles are intriguing because their maintenance
requires that roots are able to effect growth response both with and against the
gravity vector, a phenomenon previously attributed to gravitropism acting against
an antigravitropic offset mechanism. Here we show how the components mediating
gravitropism in the vertical primary root—PINs and phosphatases acting upon them—are
reconfigured in their regulation such that lateral root growth at a range of angles
can be maintained. We show that the ability of Arabidopsis lateral roots to bend
both downward and upward requires the generation of auxin asymmetries and is driven
by angle-dependent variation in downward gravitropic auxin flux acting against
angle-independent upward, antigravitropic flux. Further, we demonstrate a symmetry
in auxin distribution in lateral roots at gravitropic setpoint angle that can
be traced back to a net, balanced polarization of PIN3 and PIN7 auxin transporters
in the columella. These auxin fluxes are shifted by altering PIN protein phosphoregulation
in the columella, either by introducing PIN3 phosphovariant versions or via manipulation
of levels of the phosphatase subunit PP2A/RCN1. Finally, we show that auxin, in
addition to driving lateral root directional growth, acts within the lateral root
columella to induce more vertical growth by increasing RCN1 levels, causing a
downward shift in PIN3 localization, thereby diminishing the magnitude of the
upward, antigravitropic auxin flux.
acknowledgement: We thank D. Weijers, C. Schwechheimer and R. Offringa for generous
sharing of published and unpublished materials and P. Masson for advice on the use
of the ARL2 promoter. We are grateful to M. Del Bianco and O. Leyser for critical
reading of the manuscript. This work was supported by the BBSRC (grants BB/N010124/1
and BB/R000859/1 to S.K.), the Gatsby Charitable Foundation and the Leverhulme Trust
(RPG-2018-137 to S.K.).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: S
full_name: Roychoudhry, S
last_name: Roychoudhry
- first_name: K
full_name: Sageman-Furnas, K
last_name: Sageman-Furnas
- first_name: C
full_name: Wolverton, C
last_name: Wolverton
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Gergely
full_name: Molnar, Gergely
id: 34F1AF46-F248-11E8-B48F-1D18A9856A87
last_name: Molnar
- first_name: M
full_name: De Angelis, M
last_name: De Angelis
- first_name: HL
full_name: Goodman, HL
last_name: Goodman
- first_name: N
full_name: Capstaff, N
last_name: Capstaff
- first_name: Lloyd
full_name: JPB, Lloyd
last_name: JPB
- first_name: J
full_name: Mullen, J
last_name: Mullen
- first_name: R
full_name: Hangarter, R
last_name: Hangarter
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: S
full_name: Kepinski, S
last_name: Kepinski
citation:
ama: Roychoudhry S, Sageman-Furnas K, Wolverton C, et al. Antigravitropic PIN polarization
maintains non-vertical growth in lateral roots. Nature Plants. 2023;9:1500-1513.
doi:10.1038/s41477-023-01478-x
apa: Roychoudhry, S., Sageman-Furnas, K., Wolverton, C., Grones, P., Tan, S., Molnar,
G., … Kepinski, S. (2023). Antigravitropic PIN polarization maintains non-vertical
growth in lateral roots. Nature Plants. Springer Nature. https://doi.org/10.1038/s41477-023-01478-x
chicago: Roychoudhry, S, K Sageman-Furnas, C Wolverton, Peter Grones, Shutang Tan,
Gergely Molnar, M De Angelis, et al. “Antigravitropic PIN Polarization Maintains
Non-Vertical Growth in Lateral Roots.” Nature Plants. Springer Nature,
2023. https://doi.org/10.1038/s41477-023-01478-x.
ieee: S. Roychoudhry et al., “Antigravitropic PIN polarization maintains
non-vertical growth in lateral roots,” Nature Plants, vol. 9. Springer
Nature, pp. 1500–1513, 2023.
ista: Roychoudhry S, Sageman-Furnas K, Wolverton C, Grones P, Tan S, Molnar G, De
Angelis M, Goodman H, Capstaff N, JPB L, Mullen J, Hangarter R, Friml J, Kepinski
S. 2023. Antigravitropic PIN polarization maintains non-vertical growth in lateral
roots. Nature Plants. 9, 1500–1513.
mla: Roychoudhry, S., et al. “Antigravitropic PIN Polarization Maintains Non-Vertical
Growth in Lateral Roots.” Nature Plants, vol. 9, Springer Nature, 2023,
pp. 1500–13, doi:10.1038/s41477-023-01478-x.
short: S. Roychoudhry, K. Sageman-Furnas, C. Wolverton, P. Grones, S. Tan, G. Molnar,
M. De Angelis, H. Goodman, N. Capstaff, L. JPB, J. Mullen, R. Hangarter, J. Friml,
S. Kepinski, Nature Plants 9 (2023) 1500–1513.
date_created: 2023-09-15T09:56:01Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2023-12-13T12:23:49Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1038/s41477-023-01478-x
external_id:
isi:
- '001069238800014'
pmid:
- '37666965'
file:
- access_level: open_access
checksum: 3d6d5d5abb937c14a5f6f0afba3b8624
content_type: application/pdf
creator: dernst
date_created: 2023-09-20T10:51:31Z
date_updated: 2023-09-20T10:51:31Z
file_id: '14351'
file_name: 2023_NaturePlants_Roychoudhry.pdf
file_size: 9647103
relation: main_file
success: 1
file_date_updated: 2023-09-20T10:51:31Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 1500-1513
pmid: 1
publication: Nature Plants
publication_identifier:
issn:
- 2055-0278
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Antigravitropic PIN polarization maintains non-vertical growth in lateral roots
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: 9
year: '2023'
...
---
_id: '8582'
abstract:
- lang: eng
text: "Cell and tissue polarization is fundamental for plant growth and morphogenesis.
The polar, cellular localization of Arabidopsis PIN‐FORMED (PIN) proteins is crucial
for their function in directional auxin transport. The clustering of PIN polar
cargoes within the plasma membrane has been proposed to be important for the maintenance
of their polar distribution. However, the more detailed features of PIN clusters
and the cellular requirements of cargo clustering remain unclear.\r\nHere, we
characterized PIN clusters in detail by means of multiple advanced microscopy
and quantification methods, such as 3D quantitative imaging or freeze‐fracture
replica labeling. The size and aggregation types of PIN clusters were determined
by electron microscopy at the nanometer level at different polar domains and at
different developmental stages, revealing a strong preference for clustering at
the polar domains.\r\nPharmacological and genetic studies revealed that PIN clusters
depend on phosphoinositol pathways, cytoskeletal structures and specific cell‐wall
components as well as connections between the cell wall and the plasma membrane.\r\nThis
study identifies the role of different cellular processes and structures in polar
cargo clustering and provides initial mechanistic insight into the maintenance
of polarity in plants and other systems."
acknowledged_ssus:
- _id: Bio
acknowledgement: We thank Dr Ingo Heilmann (Martin‐Luther‐University Halle‐Wittenberg)
for the XVE>>PIP5K1‐YFP line, Dr Brad Day (Michigan State University) for the ndr1‐1
mutant and the complementation lines, and Dr Patricia C. Zambryski (University of
California, Berkeley) for the 35S::P30‐GFP line, the Bioimaging team (IST Austria)
for assistance with imaging, group members for discussions, Martine De Cock for
help in preparing the manuscript and Nataliia Gnyliukh for critical reading and
revision of the manuscript. This project received funding from the European Research
Council (ERC) under the European Union's Horizon 2020 research and innovation program
(grant agreement No. 742985) and Comisión Nacional de Investigación Científica y
Tecnológica (Project CONICYT‐PAI 82130047). DvW received funding from the People
Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme
(FP7/2007‐2013) under REA grant agreement no. 291734.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Hongjiang
full_name: Li, Hongjiang
id: 33CA54A6-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0001-5039-9660
- first_name: Daniel
full_name: von Wangenheim, Daniel
id: 49E91952-F248-11E8-B48F-1D18A9856A87
last_name: von Wangenheim
orcid: 0000-0002-6862-1247
- first_name: Xixi
full_name: Zhang, Xixi
id: 61A66458-47E9-11EA-85BA-8AEAAF14E49A
last_name: Zhang
orcid: 0000-0001-7048-4627
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Nasser
full_name: Darwish-Miranda, Nasser
id: 39CD9926-F248-11E8-B48F-1D18A9856A87
last_name: Darwish-Miranda
orcid: 0000-0002-8821-8236
- first_name: Satoshi
full_name: Naramoto, Satoshi
last_name: Naramoto
- first_name: Krzysztof T
full_name: Wabnik, Krzysztof T
id: 4DE369A4-F248-11E8-B48F-1D18A9856A87
last_name: Wabnik
orcid: 0000-0001-7263-0560
- first_name: Riet
full_name: de Rycke, Riet
last_name: de Rycke
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Daniel J
full_name: Gütl, Daniel J
id: 381929CE-F248-11E8-B48F-1D18A9856A87
last_name: Gütl
- first_name: Ricardo
full_name: Tejos, Ricardo
last_name: Tejos
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Meiyu
full_name: Ke, Meiyu
last_name: Ke
- first_name: Xu
full_name: Chen, Xu
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Jan
full_name: Dettmer, Jan
last_name: Dettmer
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Li H, von Wangenheim D, Zhang X, et al. Cellular requirements for PIN polar
cargo clustering in Arabidopsis thaliana. New Phytologist. 2021;229(1):351-369.
doi:10.1111/nph.16887
apa: Li, H., von Wangenheim, D., Zhang, X., Tan, S., Darwish-Miranda, N., Naramoto,
S., … Friml, J. (2021). Cellular requirements for PIN polar cargo clustering in
Arabidopsis thaliana. New Phytologist. Wiley. https://doi.org/10.1111/nph.16887
chicago: Li, Hongjiang, Daniel von Wangenheim, Xixi Zhang, Shutang Tan, Nasser Darwish-Miranda,
Satoshi Naramoto, Krzysztof T Wabnik, et al. “Cellular Requirements for PIN Polar
Cargo Clustering in Arabidopsis Thaliana.” New Phytologist. Wiley, 2021.
https://doi.org/10.1111/nph.16887.
ieee: H. Li et al., “Cellular requirements for PIN polar cargo clustering
in Arabidopsis thaliana,” New Phytologist, vol. 229, no. 1. Wiley, pp.
351–369, 2021.
ista: Li H, von Wangenheim D, Zhang X, Tan S, Darwish-Miranda N, Naramoto S, Wabnik
KT, de Rycke R, Kaufmann W, Gütl DJ, Tejos R, Grones P, Ke M, Chen X, Dettmer
J, Friml J. 2021. Cellular requirements for PIN polar cargo clustering in Arabidopsis
thaliana. New Phytologist. 229(1), 351–369.
mla: Li, Hongjiang, et al. “Cellular Requirements for PIN Polar Cargo Clustering
in Arabidopsis Thaliana.” New Phytologist, vol. 229, no. 1, Wiley, 2021,
pp. 351–69, doi:10.1111/nph.16887.
short: H. Li, D. von Wangenheim, X. Zhang, S. Tan, N. Darwish-Miranda, S. Naramoto,
K.T. Wabnik, R. de Rycke, W. Kaufmann, D.J. Gütl, R. Tejos, P. Grones, M. Ke,
X. Chen, J. Dettmer, J. Friml, New Phytologist 229 (2021) 351–369.
date_created: 2020-09-28T08:59:28Z
date_published: 2021-01-01T00:00:00Z
date_updated: 2023-08-04T11:01:21Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
- _id: EM-Fac
- _id: Bio
- _id: EvBe
doi: 10.1111/nph.16887
ec_funded: 1
external_id:
isi:
- '000570187900001'
file:
- access_level: open_access
checksum: b45621607b4cab97eeb1605ab58e896e
content_type: application/pdf
creator: dernst
date_created: 2021-02-04T09:44:17Z
date_updated: 2021-02-04T09:44:17Z
file_id: '9084'
file_name: 2021_NewPhytologist_Li.pdf
file_size: 4061962
relation: main_file
success: 1
file_date_updated: 2021-02-04T09:44:17Z
has_accepted_license: '1'
intvolume: ' 229'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 351-369
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: New Phytologist
publication_identifier:
eissn:
- '14698137'
issn:
- 0028646X
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cellular requirements for PIN polar cargo clustering 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 229
year: '2021'
...
---
_id: '191'
abstract:
- lang: eng
text: Intercellular distribution of the plant hormone auxin largely depends on the
polar subcellular distribution of the plasma membrane PIN-FORMED (PIN) auxin transporters.
PIN polarity switches in response to different developmental and environmental
signals have been shown to redirect auxin fluxes mediating certain developmental
responses. PIN phosphorylation at different sites and by different kinases is
crucial for PIN function. Here we investigate the role of PIN phosphorylation
during gravitropic response. Loss- and gain-of-function mutants in PINOID and
related kinases but not in D6PK kinase as well as mutations mimicking constitutive
dephosphorylated or phosphorylated status of two clusters of predicted phosphorylation
sites partially disrupted PIN3 phosphorylation and caused defects in gravitropic
bending in roots and hypocotyls. In particular, they impacted PIN3 polarity rearrangements
in response to gravity and during feed-back regulation by auxin itself. Thus PIN
phosphorylation, besides regulating transport activity and apical-basal targeting,
is also important for the rapid polarity switches in response to environmental
and endogenous signals.
article_number: '10279'
article_processing_charge: No
author:
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Melinda F
full_name: Abas, Melinda F
id: 3CFB3B1C-F248-11E8-B48F-1D18A9856A87
last_name: Abas
- first_name: Jakub
full_name: Hajny, Jakub
id: 4800CC20-F248-11E8-B48F-1D18A9856A87
last_name: Hajny
orcid: 0000-0003-2140-7195
- first_name: Angharad
full_name: Jones, Angharad
last_name: Jones
- first_name: Sascha
full_name: Waidmann, Sascha
last_name: Waidmann
- first_name: Jürgen
full_name: Kleine Vehn, Jürgen
last_name: Kleine Vehn
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Grones P, Abas MF, Hajny J, et al. PID/WAG-mediated phosphorylation of the
Arabidopsis PIN3 auxin transporter mediates polarity switches during gravitropism.
Scientific Reports. 2018;8(1). doi:10.1038/s41598-018-28188-1
apa: Grones, P., Abas, M. F., Hajny, J., Jones, A., Waidmann, S., Kleine Vehn, J.,
& Friml, J. (2018). PID/WAG-mediated phosphorylation of the Arabidopsis PIN3
auxin transporter mediates polarity switches during gravitropism. Scientific
Reports. Springer. https://doi.org/10.1038/s41598-018-28188-1
chicago: Grones, Peter, Melinda F Abas, Jakub Hajny, Angharad Jones, Sascha Waidmann,
Jürgen Kleine Vehn, and Jiří Friml. “PID/WAG-Mediated Phosphorylation of the Arabidopsis
PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” Scientific
Reports. Springer, 2018. https://doi.org/10.1038/s41598-018-28188-1.
ieee: P. Grones et al., “PID/WAG-mediated phosphorylation of the Arabidopsis
PIN3 auxin transporter mediates polarity switches during gravitropism,” Scientific
Reports, vol. 8, no. 1. Springer, 2018.
ista: Grones P, Abas MF, Hajny J, Jones A, Waidmann S, Kleine Vehn J, Friml J. 2018.
PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter mediates
polarity switches during gravitropism. Scientific Reports. 8(1), 10279.
mla: Grones, Peter, et al. “PID/WAG-Mediated Phosphorylation of the Arabidopsis
PIN3 Auxin Transporter Mediates Polarity Switches during Gravitropism.” Scientific
Reports, vol. 8, no. 1, 10279, Springer, 2018, doi:10.1038/s41598-018-28188-1.
short: P. Grones, M.F. Abas, J. Hajny, A. Jones, S. Waidmann, J. Kleine Vehn, J.
Friml, Scientific Reports 8 (2018).
date_created: 2018-12-11T11:45:06Z
date_published: 2018-07-06T00:00:00Z
date_updated: 2025-05-07T11:12:31Z
day: '06'
ddc:
- '581'
department:
- _id: JiFr
- _id: EvBe
doi: 10.1038/s41598-018-28188-1
ec_funded: 1
external_id:
isi:
- '000437673200053'
file:
- access_level: open_access
checksum: 266b03f4fb8198e83141617aaa99dcab
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T15:38:56Z
date_updated: 2020-07-14T12:45:20Z
file_id: '5714'
file_name: 2018_ScientificReports_Grones.pdf
file_size: 2413876
relation: main_file
file_date_updated: 2020-07-14T12:45:20Z
has_accepted_license: '1'
intvolume: ' 8'
isi: 1
issue: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
publication: Scientific Reports
publication_status: published
publisher: Springer
publist_id: '7729'
quality_controlled: '1'
related_material:
record:
- id: '8822'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: PID/WAG-mediated phosphorylation of the Arabidopsis PIN3 auxin transporter
mediates polarity switches during 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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 8
year: '2018'
...
---
_id: '147'
abstract:
- lang: eng
text: The trafficking of subcellular cargos in eukaryotic cells crucially depends
on vesicle budding, a process mediated by ARF-GEFs (ADP-ribosylation factor guanine
nucleotide exchange factors). In plants, ARF-GEFs play essential roles in endocytosis,
vacuolar trafficking, recycling, secretion, and polar trafficking. Moreover, they
are important for plant development, mainly through controlling the polar subcellular
localization of PIN-FORMED (PIN) transporters of the plant hormone auxin. Here,
using a chemical genetics screen in Arabidopsis thaliana, we identified Endosidin
4 (ES4), an inhibitor of eukaryotic ARF-GEFs. ES4 acts similarly to and synergistically
with the established ARF-GEF inhibitor Brefeldin A and has broad effects on intracellular
trafficking, including endocytosis, exocytosis, and vacuolar targeting. Additionally,
Arabidopsis and yeast (Sacharomyces cerevisiae) mutants defective in ARF-GEF show
altered sensitivity to ES4. ES4 interferes with the activation-based membrane
association of the ARF1 GTPases, but not of their mutant variants that are activated
independently of ARF-GEF activity. Biochemical approaches and docking simulations
confirmed that ES4 specifically targets the SEC7 domain-containing ARF-GEFs. These
observations collectively identify ES4 as a chemical tool enabling the study of
ARF-GEF-mediated processes, including ARF-GEF-mediated plant development.
acknowledgement: We thank Gerd Jürgens, Sandra Richter, and Sheng Yang He for providing
antibodies; Maciek Adamowski, Fernando Aniento, Sebastian Bednarek, Nico Callewaert,
Matyás Fendrych, Elena Feraru, and Mugurel I. Feraru for helpful suggestions; Siamsa
Doyle for critical reading of the manuscript and helpful comments and suggestions;
and Stephanie Smith and Martine De Cock for help in editing and language corrections.
We acknowledge the core facility Cellular Imaging of CEITEC supported by the Czech-BioImaging
large RI project (LM2015062 funded by MEYS CR) for their support with obtaining
scientific data presented in this article. Plant Sciences Core Facility of CEITEC
Masaryk University is gratefully acknowledged for obtaining part of the scientific
data presented in this article. We acknowledge support from the Fondation pour la
Recherche Médicale and from the Institut National du Cancer (J.C.). The research
leading to these results was funded by the European Research Council under the European
Union's 7th Framework Program (FP7/2007-2013)/ERC grant agreement numbers 282300
and 742985 and the Czech Science Foundation GAČR (GA18-26981S; J.F.); Ministry of
Education, Youth, and Sports/MEYS of the Czech Republic under the Project CEITEC
2020 (LQ1601; T.N.); the China Science Council for a predoctoral fellowship (Q.L.);
a joint research project within the framework of cooperation between the Research
Foundation-Flanders and the Bulgarian Academy of Sciences (VS.025.13N; K.M. and
E.R.); Vetenskapsrådet and Vinnova (Verket för Innovationssystem; S.R.), Knut och
Alice Wallenbergs Stiftelse via “Shapesystem” Grant 2012.0050 (S.R.), Kempe stiftelserna
(P.G.), Tryggers CTS410 (P.G.).
article_processing_charge: No
article_type: original
author:
- first_name: Urszula
full_name: Kania, Urszula
id: 4AE5C486-F248-11E8-B48F-1D18A9856A87
last_name: Kania
- first_name: Tomasz
full_name: Nodzyński, Tomasz
last_name: Nodzyński
- first_name: Qing
full_name: Lu, Qing
last_name: Lu
- first_name: Glenn R
full_name: Hicks, Glenn R
last_name: Hicks
- first_name: Wim
full_name: Nerinckx, Wim
last_name: Nerinckx
- first_name: Kiril
full_name: Mishev, Kiril
last_name: Mishev
- first_name: Francois
full_name: Peurois, Francois
last_name: Peurois
- first_name: Jacqueline
full_name: Cherfils, Jacqueline
last_name: Cherfils
- first_name: Rycke Riet Maria
full_name: De, Rycke Riet Maria
last_name: De
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Stéphanie
full_name: Robert, Stéphanie
last_name: Robert
- first_name: Eugenia
full_name: Russinova, Eugenia
last_name: Russinova
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Kania U, Nodzyński T, Lu Q, et al. The inhibitor Endosidin 4 targets SEC7 domain-type
ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes.
The Plant Cell. 2018;30(10):2553-2572. doi:10.1105/tpc.18.00127
apa: Kania, U., Nodzyński, T., Lu, Q., Hicks, G. R., Nerinckx, W., Mishev, K., …
Friml, J. (2018). The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase
exchange factors and interferes with sub cellular trafficking in eukaryotes. The
Plant Cell. Oxford University Press. https://doi.org/10.1105/tpc.18.00127
chicago: Kania, Urszula, Tomasz Nodzyński, Qing Lu, Glenn R Hicks, Wim Nerinckx,
Kiril Mishev, Francois Peurois, et al. “The Inhibitor Endosidin 4 Targets SEC7
Domain-Type ARF GTPase Exchange Factors and Interferes with Sub Cellular Trafficking
in Eukaryotes.” The Plant Cell. Oxford University Press, 2018. https://doi.org/10.1105/tpc.18.00127.
ieee: U. Kania et al., “The inhibitor Endosidin 4 targets SEC7 domain-type
ARF GTPase exchange factors and interferes with sub cellular trafficking in eukaryotes,”
The Plant Cell, vol. 30, no. 10. Oxford University Press, pp. 2553–2572,
2018.
ista: Kania U, Nodzyński T, Lu Q, Hicks GR, Nerinckx W, Mishev K, Peurois F, Cherfils
J, De RRM, Grones P, Robert S, Russinova E, Friml J. 2018. The inhibitor Endosidin
4 targets SEC7 domain-type ARF GTPase exchange factors and interferes with sub
cellular trafficking in eukaryotes. The Plant Cell. 30(10), 2553–2572.
mla: Kania, Urszula, et al. “The Inhibitor Endosidin 4 Targets SEC7 Domain-Type
ARF GTPase Exchange Factors and Interferes with Sub Cellular Trafficking in Eukaryotes.”
The Plant Cell, vol. 30, no. 10, Oxford University Press, 2018, pp. 2553–72,
doi:10.1105/tpc.18.00127.
short: U. Kania, T. Nodzyński, Q. Lu, G.R. Hicks, W. Nerinckx, K. Mishev, F. Peurois,
J. Cherfils, R.R.M. De, P. Grones, S. Robert, E. Russinova, J. Friml, The Plant
Cell 30 (2018) 2553–2572.
date_created: 2018-12-11T11:44:52Z
date_published: 2018-11-12T00:00:00Z
date_updated: 2025-05-07T11:12:30Z
day: '12'
department:
- _id: JiFr
doi: 10.1105/tpc.18.00127
ec_funded: 1
external_id:
isi:
- '000450000500023'
pmid:
- '30018156'
intvolume: ' 30'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1105/tpc.18.00127
month: '11'
oa: 1
oa_version: Published Version
page: 2553 - 2572
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
publication: The Plant Cell
publication_identifier:
issn:
- 1040-4651
publication_status: published
publisher: Oxford University Press
publist_id: '7776'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The inhibitor Endosidin 4 targets SEC7 domain-type ARF GTPase exchange factors
and interferes with sub cellular trafficking in eukaryotes
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 30
year: '2018'
...
---
_id: '1372'
abstract:
- lang: eng
text: Redirection of intercellular auxin fluxes via relocalization of the PIN-FORMED
3 (PIN3) and PIN7 auxin efflux carriers has been suggested to be necessary for
the root gravitropic response. Cytokinins have also been proposed to play a role
in controlling root gravitropism, but conclusive evidence is lacking. We present
a detailed study of the dynamics of root bending early after gravistimulation,
which revealed a delayed gravitropic response in transgenic lines with depleted
endogenous cytokinins (Pro35S:AtCKX) and cytokinin signaling mutants. Pro35S:AtCKX
lines, as well as a cytokinin receptor mutant ahk3, showed aberrations in the
auxin response distribution in columella cells consistent with defects in the
auxin transport machinery. Using in vivo real-time imaging of PIN3-GFP and PIN7-GFP
in AtCKX3 overexpression and ahk3 backgrounds, we observed wild-type-like relocalization
of PIN proteins in the columella early after gravistimulation, with gravity-induced
relocalization of PIN7 faster than that of PIN3. Nonetheless, the cellular distribution
of PIN3 and PIN7 and expression of PIN7 and the auxin influx carrier AUX1 was
affected in AtCKX overexpression lines. Based on the retained cytokinin sensitivity
in pin3 pin4 pin7 mutant, we propose the AUX1-mediated auxin transport rather
than columella-located PIN proteins as a target of endogenous cytokinins in the
control of root gravitropism.
acknowledgement: 'Funded by Ministry of Education, Youth and Sports Czech Republic.
Grant Numbers: CEITEC 2020, LQ1601, LO1204, LH14104 and The European Research Council.
Grant Number: ERC-2011-StG-20101109-PSDP and The Czech Science Foundation. Grant
Numbers: GAP501/11/1150, GA13-40637S, GP14-30004P'
author:
- first_name: Markéta
full_name: Pernisová, Markéta
last_name: Pernisová
- first_name: Tomas
full_name: Prat, Tomas
id: 3DA3BFEE-F248-11E8-B48F-1D18A9856A87
last_name: Prat
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Danka
full_name: Haruštiaková, Danka
last_name: Haruštiaková
- first_name: Martina
full_name: Matonohova, Martina
last_name: Matonohova
- first_name: Lukáš
full_name: Spíchal, Lukáš
last_name: Spíchal
- first_name: Tomasz
full_name: Nodzyński, Tomasz
last_name: Nodzyński
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Jan
full_name: Hejátko, Jan
last_name: Hejátko
citation:
ama: Pernisová M, Prat T, Grones P, et al. Cytokinins influence root gravitropism
via differential regulation of auxin transporter expression and localization in
Arabidopsis. New Phytologist. 2016;212(2):497-509. doi:10.1111/nph.14049
apa: Pernisová, M., Prat, T., Grones, P., Haruštiaková, D., Matonohova, M., Spíchal,
L., … Hejátko, J. (2016). Cytokinins influence root gravitropism via differential
regulation of auxin transporter expression and localization in Arabidopsis. New
Phytologist. Wiley-Blackwell. https://doi.org/10.1111/nph.14049
chicago: Pernisová, Markéta, Tomas Prat, Peter Grones, Danka Haruštiaková, Martina
Matonohova, Lukáš Spíchal, Tomasz Nodzyński, Jiří Friml, and Jan Hejátko. “Cytokinins
Influence Root Gravitropism via Differential Regulation of Auxin Transporter Expression
and Localization in Arabidopsis.” New Phytologist. Wiley-Blackwell, 2016.
https://doi.org/10.1111/nph.14049.
ieee: M. Pernisová et al., “Cytokinins influence root gravitropism via differential
regulation of auxin transporter expression and localization in Arabidopsis,” New
Phytologist, vol. 212, no. 2. Wiley-Blackwell, pp. 497–509, 2016.
ista: Pernisová M, Prat T, Grones P, Haruštiaková D, Matonohova M, Spíchal L, Nodzyński
T, Friml J, Hejátko J. 2016. Cytokinins influence root gravitropism via differential
regulation of auxin transporter expression and localization in Arabidopsis. New
Phytologist. 212(2), 497–509.
mla: Pernisová, Markéta, et al. “Cytokinins Influence Root Gravitropism via Differential
Regulation of Auxin Transporter Expression and Localization in Arabidopsis.” New
Phytologist, vol. 212, no. 2, Wiley-Blackwell, 2016, pp. 497–509, doi:10.1111/nph.14049.
short: M. Pernisová, T. Prat, P. Grones, D. Haruštiaková, M. Matonohova, L. Spíchal,
T. Nodzyński, J. Friml, J. Hejátko, New Phytologist 212 (2016) 497–509.
date_created: 2018-12-11T11:51:38Z
date_published: 2016-10-01T00:00:00Z
date_updated: 2021-01-12T06:50:13Z
day: '01'
ddc:
- '581'
department:
- _id: JiFr
doi: 10.1111/nph.14049
file:
- access_level: open_access
checksum: 27fd841ceaf0403559d7048ef51500f9
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:53Z
date_updated: 2020-07-14T12:44:47Z
file_id: '5108'
file_name: IST-2018-1006-v1+1_Pernisova_NewPhytol_2016_peer_review.pdf
file_size: 972763
relation: main_file
file_date_updated: 2020-07-14T12:44:47Z
has_accepted_license: '1'
intvolume: ' 212'
issue: '2'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
page: 497 - 509
publication: New Phytologist
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5839'
pubrep_id: '1006'
quality_controlled: '1'
scopus_import: 1
status: public
title: Cytokinins influence root gravitropism via differential regulation of auxin
transporter expression and localization in Arabidopsis
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 212
year: '2016'
...
---
_id: '1847'
acknowledgement: This work was supported by the European Research Council (project
ERC-2011-StG-20101109-PSDP), European Social Fund (CZ.1.07/2.3.00/20.0043), and
the Czech Science Foundation GAČR (GA13-40637S).
author:
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Jiřĺ
full_name: Friml, Jiřĺ
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: 'Grones P, Friml J. ABP1: Finally docking. Molecular Plant. 2015;8(3):356-358.
doi:10.1016/j.molp.2014.12.013'
apa: 'Grones, P., & Friml, J. (2015). ABP1: Finally docking. Molecular Plant.
Elsevier. https://doi.org/10.1016/j.molp.2014.12.013'
chicago: 'Grones, Peter, and Jiří Friml. “ABP1: Finally Docking.” Molecular Plant.
Elsevier, 2015. https://doi.org/10.1016/j.molp.2014.12.013.'
ieee: 'P. Grones and J. Friml, “ABP1: Finally docking,” Molecular Plant,
vol. 8, no. 3. Elsevier, pp. 356–358, 2015.'
ista: 'Grones P, Friml J. 2015. ABP1: Finally docking. Molecular Plant. 8(3), 356–358.'
mla: 'Grones, Peter, and Jiří Friml. “ABP1: Finally Docking.” Molecular Plant,
vol. 8, no. 3, Elsevier, 2015, pp. 356–58, doi:10.1016/j.molp.2014.12.013.'
short: P. Grones, J. Friml, Molecular Plant 8 (2015) 356–358.
date_created: 2018-12-11T11:54:20Z
date_published: 2015-03-02T00:00:00Z
date_updated: 2021-01-12T06:53:35Z
day: '02'
department:
- _id: JiFr
doi: 10.1016/j.molp.2014.12.013
intvolume: ' 8'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 356 - 358
publication: Molecular Plant
publication_status: published
publisher: Elsevier
publist_id: '5254'
quality_controlled: '1'
scopus_import: 1
status: public
title: 'ABP1: Finally docking'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2015'
...
---
_id: '1871'
abstract:
- lang: eng
text: The plant hormone auxin is a key regulator of plant growth and development.
Differences in auxin distribution within tissues are mediated by the polar auxin
transport machinery, and cellular auxin responses occur depending on changes in
cellular auxin levels. Multiple receptor systems at the cell surface and in the
interior operate to sense and interpret fluctuations in auxin distribution that
occur during plant development. Until now, three proteins or protein complexes
that can bind auxin have been identified. SCFTIR1 [a SKP1-cullin-1-F-box complex
that contains transport inhibitor response 1 (TIR1) as the F-box protein] and
S-phase-kinaseassociated protein 2 (SKP2) localize to the nucleus, whereas auxinbinding
protein 1 (ABP1), predominantly associates with the endoplasmic reticulum and
cell surface. In this Cell Science at a Glance article, we summarize recent discoveries
in the field of auxin transport and signaling that have led to the identification
of new components of these pathways, as well as their mutual interaction.
acknowledgement: This work was supported by the European Research Council [project
ERC-2011-StG-20101109-PSDP]; European Social Fund [grant number CZ.1.07/2.3.00/20.0043]
and the Czech Science Foundation GAČR [grant number GA13-40637S]
author:
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Grones P, Friml J. Auxin transporters and binding proteins at a glance. Journal
of Cell Science. 2015;128(1):1-7. doi:10.1242/jcs.159418
apa: Grones, P., & Friml, J. (2015). Auxin transporters and binding proteins
at a glance. Journal of Cell Science. Company of Biologists. https://doi.org/10.1242/jcs.159418
chicago: Grones, Peter, and Jiří Friml. “Auxin Transporters and Binding Proteins
at a Glance.” Journal of Cell Science. Company of Biologists, 2015. https://doi.org/10.1242/jcs.159418.
ieee: P. Grones and J. Friml, “Auxin transporters and binding proteins at a glance,”
Journal of Cell Science, vol. 128, no. 1. Company of Biologists, pp. 1–7,
2015.
ista: Grones P, Friml J. 2015. Auxin transporters and binding proteins at a glance.
Journal of Cell Science. 128(1), 1–7.
mla: Grones, Peter, and Jiří Friml. “Auxin Transporters and Binding Proteins at
a Glance.” Journal of Cell Science, vol. 128, no. 1, Company of Biologists,
2015, pp. 1–7, doi:10.1242/jcs.159418.
short: P. Grones, J. Friml, Journal of Cell Science 128 (2015) 1–7.
date_created: 2018-12-11T11:54:28Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2021-01-12T06:53:45Z
day: '01'
ddc:
- '570'
department:
- _id: JiFr
doi: 10.1242/jcs.159418
file:
- access_level: open_access
checksum: 24c779f4cd9d549ca6833e26f486be27
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:11:00Z
date_updated: 2020-07-14T12:45:19Z
file_id: '4852'
file_name: IST-2016-563-v1+1_1.full.pdf
file_size: 1688844
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: ' 128'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 1 - 7
publication: Journal of Cell Science
publication_status: published
publisher: Company of Biologists
publist_id: '5225'
pubrep_id: '563'
quality_controlled: '1'
scopus_import: 1
status: public
title: Auxin transporters and binding proteins at a glance
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 128
year: '2015'
...
---
_id: '1562'
abstract:
- lang: eng
text: The plant hormone auxin is a key regulator of plant growth and development.
Auxin levels are sensed and interpreted by distinct receptor systems that activate
a broad range of cellular responses. The Auxin-Binding Protein1 (ABP1) that has
been identified based on its ability to bind auxin with high affinity is a prime
candidate for the extracellular receptor responsible for mediating a range of
auxin effects, in particular, the fast non-transcriptional ones. Contradictory
genetic studies suggested prominent or no importance of ABP1 in many developmental
processes. However, how crucial the role of auxin binding to ABP1 is for its functions
has not been addressed. Here, we show that the auxin-binding pocket of ABP1 is
essential for its gain-of-function cellular and developmental roles. In total,
16 different abp1 mutants were prepared that possessed substitutions in the metal
core or in the hydrophobic amino acids of the auxin-binding pocket as well as
neutral mutations. Their analysis revealed that an intact auxin-binding pocket
is a prerequisite for ABP1 to activate downstream components of the ABP1 signalling
pathway, such as Rho of Plants (ROPs) and to mediate the clathrin association
with membranes for endocytosis regulation. In planta analyses demonstrated the
importance of the auxin binding pocket for all known ABP1-mediated postembryonic
developmental processes, including morphology of leaf epidermal cells, root growth
and root meristem activity, and vascular tissue differentiation. Taken together,
these findings suggest that auxin binding to ABP1 is central to its function,
supporting the role of ABP1 as auxin receptor.
acknowledgement: This work was supported by ERC Independent Research grant (ERC-2011-StG-
20101109-PSDP to JF); the European Social Fund and the state budget of the Czech
Republic [the project ‘Employment of Newly Graduated Doctors of Science for Scientific
Excellence’ (CZ.1.07/2.3.00/30.0009) to TN]; the Czech Science Foundation (GACR)
[project 13-40637S to JF].
article_type: original
author:
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Xu
full_name: Chen, Xu
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Sibu
full_name: Simon, Sibu
id: 4542EF9A-F248-11E8-B48F-1D18A9856A87
last_name: Simon
orcid: 0000-0002-1998-6741
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Riet
full_name: De Rycke, Riet
last_name: De Rycke
- first_name: Tomasz
full_name: Nodzyński, Tomasz
last_name: Nodzyński
- first_name: Eva
full_name: Zažímalová, Eva
last_name: Zažímalová
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Grones P, Chen X, Simon S, et al. Auxin-binding pocket of ABP1 is crucial for
its gain-of-function cellular and developmental roles. Journal of Experimental
Botany. 2015;66(16):5055-5065. doi:10.1093/jxb/erv177
apa: Grones, P., Chen, X., Simon, S., Kaufmann, W., De Rycke, R., Nodzyński, T.,
… Friml, J. (2015). Auxin-binding pocket of ABP1 is crucial for its gain-of-function
cellular and developmental roles. Journal of Experimental Botany. Oxford
University Press. https://doi.org/10.1093/jxb/erv177
chicago: Grones, Peter, Xu Chen, Sibu Simon, Walter Kaufmann, Riet De Rycke, Tomasz
Nodzyński, Eva Zažímalová, and Jiří Friml. “Auxin-Binding Pocket of ABP1 Is Crucial
for Its Gain-of-Function Cellular and Developmental Roles.” Journal of Experimental
Botany. Oxford University Press, 2015. https://doi.org/10.1093/jxb/erv177.
ieee: P. Grones et al., “Auxin-binding pocket of ABP1 is crucial for its
gain-of-function cellular and developmental roles,” Journal of Experimental
Botany, vol. 66, no. 16. Oxford University Press, pp. 5055–5065, 2015.
ista: Grones P, Chen X, Simon S, Kaufmann W, De Rycke R, Nodzyński T, Zažímalová
E, Friml J. 2015. Auxin-binding pocket of ABP1 is crucial for its gain-of-function
cellular and developmental roles. Journal of Experimental Botany. 66(16), 5055–5065.
mla: Grones, Peter, et al. “Auxin-Binding Pocket of ABP1 Is Crucial for Its Gain-of-Function
Cellular and Developmental Roles.” Journal of Experimental Botany, vol.
66, no. 16, Oxford University Press, 2015, pp. 5055–65, doi:10.1093/jxb/erv177.
short: P. Grones, X. Chen, S. Simon, W. Kaufmann, R. De Rycke, T. Nodzyński, E.
Zažímalová, J. Friml, Journal of Experimental Botany 66 (2015) 5055–5065.
date_created: 2018-12-11T11:52:44Z
date_published: 2015-08-01T00:00:00Z
date_updated: 2023-02-23T10:04:26Z
day: '01'
department:
- _id: JiFr
- _id: EM-Fac
doi: 10.1093/jxb/erv177
ec_funded: 1
intvolume: ' 66'
issue: '16'
language:
- iso: eng
month: '08'
oa_version: None
page: 5055 - 5065
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Journal of Experimental Botany
publication_status: published
publisher: Oxford University Press
publist_id: '5609'
quality_controlled: '1'
scopus_import: 1
status: public
title: Auxin-binding pocket of ABP1 is crucial for its gain-of-function cellular and
developmental roles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 66
year: '2015'
...
---
_id: '1893'
abstract:
- lang: eng
text: Phosphatidylinositol (PtdIns) is a structural phospholipid that can be phosphorylated
into various lipid signaling molecules, designated polyphosphoinositides (PPIs).
The reversible phosphorylation of PPIs on the 3, 4, or 5 position of inositol
is performed by a set of organelle-specific kinases and phosphatases, and the
characteristic head groups make these molecules ideal for regulating biological
processes in time and space. In yeast and mammals, PtdIns3P and PtdIns(3,5)P2
play crucial roles in trafficking toward the lytic compartments, whereas the role
in plants is not yet fully understood. Here we identified the role of a land plant-specific
subgroup of PPI phosphatases, the suppressor of actin 2 (SAC2) to SAC5, during
vacuolar trafficking and morphogenesis in Arabidopsis thaliana. SAC2-SAC5 localize
to the tonoplast along with PtdIns3P, the presumable product of their activity.
In SAC gain- and loss-of-function mutants, the levels of PtdIns monophosphates
and bisphosphates were changed, with opposite effects on the morphology of storage
and lytic vacuoles, and the trafficking toward the vacuoles was defective. Moreover,
multiple sac knockout mutants had an increased number of smaller storage and lytic
vacuoles, whereas extralarge vacuoles were observed in the overexpression lines,
correlating with various growth and developmental defects. The fragmented vacuolar
phenotype of sac mutants could be mimicked by treating wild-type seedlings with
PtdIns(3,5)P2, corroborating that this PPI is important for vacuole morphology.
Taken together, these results provide evidence that PPIs, together with their
metabolic enzymes SAC2-SAC5, are crucial for vacuolar trafficking and for vacuolar
morphology and function in plants.
acknowledgement: This work was supported by grants from the Research Foundation-Flanders
(Odysseus).
author:
- first_name: Petra
full_name: Nováková, Petra
id: 44E59624-F248-11E8-B48F-1D18A9856A87
last_name: Nováková
- first_name: Sibylle
full_name: Hirsch, Sibylle
last_name: Hirsch
- first_name: Elena
full_name: Feraru, Elena
last_name: Feraru
- first_name: Ricardo
full_name: Tejos, Ricardo
last_name: Tejos
- first_name: Ringo
full_name: Van Wijk, Ringo
last_name: Van Wijk
- first_name: Tom
full_name: Viaene, Tom
last_name: Viaene
- first_name: Mareike
full_name: Heilmann, Mareike
last_name: Heilmann
- first_name: Jennifer
full_name: Lerche, Jennifer
last_name: Lerche
- first_name: Riet
full_name: De Rycke, Riet
last_name: De Rycke
- first_name: Mugurel
full_name: Feraru, Mugurel
last_name: Feraru
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Marc
full_name: Van Montagu, Marc
last_name: Van Montagu
- first_name: Ingo
full_name: Heilmann, Ingo
last_name: Heilmann
- first_name: Teun
full_name: Munnik, Teun
last_name: Munnik
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Marhavá P, Hirsch S, Feraru E, et al. SAC phosphoinositide phosphatases at
the tonoplast mediate vacuolar function in Arabidopsis. PNAS. 2014;111(7):2818-2823.
doi:10.1073/pnas.1324264111
apa: Marhavá, P., Hirsch, S., Feraru, E., Tejos, R., Van Wijk, R., Viaene, T., …
Friml, J. (2014). SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar
function in Arabidopsis. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1324264111
chicago: Marhavá, Petra, Sibylle Hirsch, Elena Feraru, Ricardo Tejos, Ringo Van
Wijk, Tom Viaene, Mareike Heilmann, et al. “SAC Phosphoinositide Phosphatases
at the Tonoplast Mediate Vacuolar Function in Arabidopsis.” PNAS. National
Academy of Sciences, 2014. https://doi.org/10.1073/pnas.1324264111.
ieee: P. Marhavá et al., “SAC phosphoinositide phosphatases at the tonoplast
mediate vacuolar function in Arabidopsis,” PNAS, vol. 111, no. 7. National
Academy of Sciences, pp. 2818–2823, 2014.
ista: Marhavá P, Hirsch S, Feraru E, Tejos R, Van Wijk R, Viaene T, Heilmann M,
Lerche J, De Rycke R, Feraru M, Grones P, Van Montagu M, Heilmann I, Munnik T,
Friml J. 2014. SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar
function in Arabidopsis. PNAS. 111(7), 2818–2823.
mla: Marhavá, Petra, et al. “SAC Phosphoinositide Phosphatases at the Tonoplast
Mediate Vacuolar Function in Arabidopsis.” PNAS, vol. 111, no. 7, National
Academy of Sciences, 2014, pp. 2818–23, doi:10.1073/pnas.1324264111.
short: P. Marhavá, S. Hirsch, E. Feraru, R. Tejos, R. Van Wijk, T. Viaene, M. Heilmann,
J. Lerche, R. De Rycke, M. Feraru, P. Grones, M. Van Montagu, I. Heilmann, T.
Munnik, J. Friml, PNAS 111 (2014) 2818–2823.
date_created: 2018-12-11T11:54:34Z
date_published: 2014-02-18T00:00:00Z
date_updated: 2021-01-12T06:53:53Z
day: '18'
department:
- _id: JiFr
doi: 10.1073/pnas.1324264111
ec_funded: 1
intvolume: ' 111'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3932866/
month: '02'
oa: 1
oa_version: Submitted Version
page: 2818 - 2823
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '5202'
scopus_import: 1
status: public
title: SAC phosphoinositide phosphatases at the tonoplast mediate vacuolar function
in Arabidopsis
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 111
year: '2014'
...
---
_id: '528'
abstract:
- lang: eng
text: Establishment of the embryonic axis foreshadows the main body axis of adults
both in plants and in animals, but underlying mechanisms are considered distinct.
Plants utilize directional, cell-to-cell transport of the growth hormone auxin
[1, 2] to generate an asymmetric auxin response that specifies the embryonic apical-basal
axis [3-6]. The auxin flow directionality depends on the polarized subcellular
localization of PIN-FORMED (PIN) auxin transporters [7, 8]. It remains unknown
which mechanisms and spatial cues guide cell polarization and axis orientation
in early embryos. Herein, we provide conceptually novel insights into the formation
of embryonic axis in Arabidopsis by identifying a crucial role of localized tryptophan-dependent
auxin biosynthesis [9-12]. Local auxin production at the base of young embryos
and the accompanying PIN7-mediated auxin flow toward the proembryo are required
for the apical auxin response maximum and the specification of apical embryonic
structures. Later in embryogenesis, the precisely timed onset of localized apical
auxin biosynthesis mediates PIN1 polarization, basal auxin response maximum, and
specification of the root pole. Thus, the tight spatiotemporal control of distinct
local auxin sources provides a necessary, non-cell-autonomous trigger for the
coordinated cell polarization and subsequent apical-basal axis orientation during
embryogenesis and, presumably, also for other polarization events during postembryonic
plant life [13, 14].
author:
- first_name: Hélène
full_name: Robert, Hélène
last_name: Robert
- first_name: Peter
full_name: Grones, Peter
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Anna
full_name: Stepanova, Anna
last_name: Stepanova
- first_name: Linda
full_name: Robles, Linda
last_name: Robles
- first_name: Annemarie
full_name: Lokerse, Annemarie
last_name: Lokerse
- first_name: Jose
full_name: Alonso, Jose
last_name: Alonso
- first_name: Dolf
full_name: Weijers, Dolf
last_name: Weijers
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Robert H, Grones P, Stepanova A, et al. Local auxin sources orient the apical
basal axis in arabidopsis embryos. Current Biology. 2013;23(24):2506-2512.
doi:10.1016/j.cub.2013.09.039
apa: Robert, H., Grones, P., Stepanova, A., Robles, L., Lokerse, A., Alonso, J.,
… Friml, J. (2013). Local auxin sources orient the apical basal axis in arabidopsis
embryos. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2013.09.039
chicago: Robert, Hélène, Peter Grones, Anna Stepanova, Linda Robles, Annemarie Lokerse,
Jose Alonso, Dolf Weijers, and Jiří Friml. “Local Auxin Sources Orient the Apical
Basal Axis in Arabidopsis Embryos.” Current Biology. Cell Press, 2013.
https://doi.org/10.1016/j.cub.2013.09.039.
ieee: H. Robert et al., “Local auxin sources orient the apical basal axis
in arabidopsis embryos,” Current Biology, vol. 23, no. 24. Cell Press,
pp. 2506–2512, 2013.
ista: Robert H, Grones P, Stepanova A, Robles L, Lokerse A, Alonso J, Weijers D,
Friml J. 2013. Local auxin sources orient the apical basal axis in arabidopsis
embryos. Current Biology. 23(24), 2506–2512.
mla: Robert, Hélène, et al. “Local Auxin Sources Orient the Apical Basal Axis in
Arabidopsis Embryos.” Current Biology, vol. 23, no. 24, Cell Press, 2013,
pp. 2506–12, doi:10.1016/j.cub.2013.09.039.
short: H. Robert, P. Grones, A. Stepanova, L. Robles, A. Lokerse, J. Alonso, D.
Weijers, J. Friml, Current Biology 23 (2013) 2506–2512.
date_created: 2018-12-11T11:46:59Z
date_published: 2013-12-16T00:00:00Z
date_updated: 2021-01-12T08:01:25Z
day: '16'
department:
- _id: JiFr
doi: 10.1016/j.cub.2013.09.039
ec_funded: 1
intvolume: ' 23'
issue: '24'
language:
- iso: eng
month: '12'
oa_version: None
page: 2506 - 2512
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Current Biology
publication_status: published
publisher: Cell Press
publist_id: '7291'
quality_controlled: '1'
scopus_import: 1
status: public
title: Local auxin sources orient the apical basal axis in arabidopsis embryos
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 23
year: '2013'
...
---
_id: '3089'
abstract:
- lang: eng
text: The phytohormone auxin is an important determinant of plant development. Directional
auxin flow within tissues depends on polar localization of PIN auxin transporters.
To explore regulation of PIN-mediated auxin transport, we screened for suppressors
of PIN1 overexpression (supo) and identified an inositol polyphosphate 1-phosphatase
mutant (supo1), with elevated inositol trisphosphate (InsP 3) and cytosolic Ca
2+ levels. Pharmacological and genetic increases in InsP 3 or Ca 2+ levels also
suppressed the PIN1 gain-of-function phenotypes and caused defects in basal PIN
localization, auxin transport and auxin-mediated development. In contrast, the
reductions in InsP 3 levels and Ca 2+ signaling antagonized the effects of the
supo1 mutation and disrupted preferentially apical PIN localization. InsP 3 and
Ca 2+ are evolutionarily conserved second messengers involved in various cellular
functions, particularly stress responses. Our findings implicate them as modifiers
of cell polarity and polar auxin transport, and highlight a potential integration
point through which Ca 2+ signaling-related stimuli could influence auxin-mediated
development.
author:
- first_name: Jing
full_name: Zhang, Jing
last_name: Zhang
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Philip
full_name: Brewer, Philip B
last_name: Brewer
- first_name: Marta
full_name: Michniewicz, Marta
last_name: Michniewicz
- first_name: Peter
full_name: Peter Grones
id: 399876EC-F248-11E8-B48F-1D18A9856A87
last_name: Grones
- first_name: Jürgen
full_name: Kleine-Vehn, Jürgen
last_name: Kleine Vehn
- first_name: Christian
full_name: Löfke, Christian
last_name: Löfke
- first_name: Thomas
full_name: Teichmann, Thomas
last_name: Teichmann
- first_name: Agnieszka
full_name: Bielach, Agnieszka
last_name: Bielach
- first_name: Bernard
full_name: Cannoot, Bernard
last_name: Cannoot
- first_name: Klára
full_name: Hoyerová, Klára
last_name: Hoyerová
- first_name: Xu
full_name: Xu Chen
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Hong
full_name: Xue, Hong-Wei
last_name: Xue
- first_name: Eva
full_name: Eva Benková
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
- first_name: Eva
full_name: Zažímalová, Eva
last_name: Zažímalová
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Zhang J, Vanneste S, Brewer P, et al. Inositol trisphosphate-induced ca^2+
signaling modulates auxin transport and pin polarity. Developmental Cell.
2011;20(6):855-866. doi:10.1016/j.devcel.2011.05.013
apa: Zhang, J., Vanneste, S., Brewer, P., Michniewicz, M., Grones, P., Kleine Vehn,
J., … Friml, J. (2011). Inositol trisphosphate-induced ca^2+ signaling modulates
auxin transport and pin polarity. Developmental Cell. Cell Press. https://doi.org/10.1016/j.devcel.2011.05.013
chicago: Zhang, Jing, Steffen Vanneste, Philip Brewer, Marta Michniewicz, Peter
Grones, Jürgen Kleine Vehn, Christian Löfke, et al. “Inositol Trisphosphate-Induced
Ca^2+ Signaling Modulates Auxin Transport and Pin Polarity.” Developmental
Cell. Cell Press, 2011. https://doi.org/10.1016/j.devcel.2011.05.013.
ieee: J. Zhang et al., “Inositol trisphosphate-induced ca^2+ signaling modulates
auxin transport and pin polarity,” Developmental Cell, vol. 20, no. 6.
Cell Press, pp. 855–866, 2011.
ista: Zhang J, Vanneste S, Brewer P, Michniewicz M, Grones P, Kleine Vehn J, Löfke
C, Teichmann T, Bielach A, Cannoot B, Hoyerová K, Chen X, Xue H, Benková E, Zažímalová
E, Friml J. 2011. Inositol trisphosphate-induced ca^2+ signaling modulates auxin
transport and pin polarity. Developmental Cell. 20(6), 855–866.
mla: Zhang, Jing, et al. “Inositol Trisphosphate-Induced Ca^2+ Signaling Modulates
Auxin Transport and Pin Polarity.” Developmental Cell, vol. 20, no. 6,
Cell Press, 2011, pp. 855–66, doi:10.1016/j.devcel.2011.05.013.
short: J. Zhang, S. Vanneste, P. Brewer, M. Michniewicz, P. Grones, J. Kleine Vehn,
C. Löfke, T. Teichmann, A. Bielach, B. Cannoot, K. Hoyerová, X. Chen, H. Xue,
E. Benková, E. Zažímalová, J. Friml, Developmental Cell 20 (2011) 855–866.
date_created: 2018-12-11T12:01:18Z
date_published: 2011-06-14T00:00:00Z
date_updated: 2021-01-12T07:40:58Z
day: '14'
doi: 10.1016/j.devcel.2011.05.013
extern: 1
intvolume: ' 20'
issue: '6'
month: '06'
page: 855 - 866
publication: Developmental Cell
publication_status: published
publisher: Cell Press
publist_id: '3612'
quality_controlled: 0
status: public
title: Inositol trisphosphate-induced ca^2+ signaling modulates auxin transport and
pin polarity
type: journal_article
volume: 20
year: '2011'
...