---
_id: '2290'
abstract:
- lang: eng
text: The plant hormone indole-acetic acid (auxin) is essential for many aspects
of plant development. Auxin-mediated growth regulation typically involves the
establishment of an auxin concentration gradient mediated by polarly localized
auxin transporters. The localization of auxin carriers and their amount at the
plasma membrane are controlled by membrane trafficking processes such as secretion,
endocytosis, and recycling. In contrast to endocytosis or recycling, how the secretory
pathway mediates the localization of auxin carriers is not well understood. In
this study we have used the differential cell elongation process during apical
hook development to elucidate the mechanisms underlying the post-Golgi trafficking
of auxin carriers in Arabidopsis. We show that differential cell elongation during
apical hook development is defective in Arabidopsis mutant echidna (ech). ECH
protein is required for the trans-Golgi network (TGN)-mediated trafficking of
the auxin influx carrier AUX1 to the plasma membrane. In contrast, ech mutation
only marginally perturbs the trafficking of the highly related auxin influx carrier
LIKE-AUX1-3 or the auxin efflux carrier PIN-FORMED-3, both also involved in hook
development. Electron tomography reveals that the trafficking defects in ech mutant
are associated with the perturbation of secretory vesicle genesis from the TGN.
Our results identify differential mechanisms for the post-Golgi trafficking of
de novo-synthesized auxin carriers to plasma membrane from the TGN and reveal
how trafficking of auxin influx carriers mediates the control of differential
cell elongation in apical hook development.
author:
- first_name: Yohann
full_name: Boutté, Yohann
last_name: Boutté
- first_name: Kristoffer
full_name: Jonsson, Kristoffer
last_name: Jonsson
- first_name: Heather
full_name: Mcfarlane, Heather
last_name: Mcfarlane
- first_name: Errin
full_name: Johnson, Errin
last_name: Johnson
- first_name: Delphine
full_name: Gendre, Delphine
last_name: Gendre
- first_name: Ranjan
full_name: Swarup, Ranjan
last_name: Swarup
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Lacey
full_name: Samuels, Lacey
last_name: Samuels
- first_name: Stéphanie
full_name: Robert, Stéphanie
last_name: Robert
- first_name: Rishikesh
full_name: Bhalerao, Rishikesh
last_name: Bhalerao
citation:
ama: Boutté Y, Jonsson K, Mcfarlane H, et al. ECHIDNA mediated post Golgi trafficking
of auxin carriers for differential cell elongation. PNAS. 2013;110(40):16259-16264.
doi:10.1073/pnas.1309057110
apa: Boutté, Y., Jonsson, K., Mcfarlane, H., Johnson, E., Gendre, D., Swarup, R.,
… Bhalerao, R. (2013). ECHIDNA mediated post Golgi trafficking of auxin carriers
for differential cell elongation. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1309057110
chicago: Boutté, Yohann, Kristoffer Jonsson, Heather Mcfarlane, Errin Johnson, Delphine
Gendre, Ranjan Swarup, Jiří Friml, Lacey Samuels, Stéphanie Robert, and Rishikesh
Bhalerao. “ECHIDNA Mediated Post Golgi Trafficking of Auxin Carriers for Differential
Cell Elongation.” PNAS. National Academy of Sciences, 2013. https://doi.org/10.1073/pnas.1309057110.
ieee: Y. Boutté et al., “ECHIDNA mediated post Golgi trafficking of auxin
carriers for differential cell elongation,” PNAS, vol. 110, no. 40. National
Academy of Sciences, pp. 16259–16264, 2013.
ista: Boutté Y, Jonsson K, Mcfarlane H, Johnson E, Gendre D, Swarup R, Friml J,
Samuels L, Robert S, Bhalerao R. 2013. ECHIDNA mediated post Golgi trafficking
of auxin carriers for differential cell elongation. PNAS. 110(40), 16259–16264.
mla: Boutté, Yohann, et al. “ECHIDNA Mediated Post Golgi Trafficking of Auxin Carriers
for Differential Cell Elongation.” PNAS, vol. 110, no. 40, National Academy
of Sciences, 2013, pp. 16259–64, doi:10.1073/pnas.1309057110.
short: Y. Boutté, K. Jonsson, H. Mcfarlane, E. Johnson, D. Gendre, R. Swarup, J.
Friml, L. Samuels, S. Robert, R. Bhalerao, PNAS 110 (2013) 16259–16264.
date_created: 2018-12-11T11:56:48Z
date_published: 2013-10-01T00:00:00Z
date_updated: 2021-01-12T06:56:33Z
day: '01'
department:
- _id: JiFr
doi: 10.1073/pnas.1309057110
external_id:
pmid:
- '24043780'
intvolume: ' 110'
issue: '40'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3791722/
month: '10'
oa: 1
oa_version: Submitted Version
page: 16259 - 16264
pmid: 1
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '4639'
quality_controlled: '1'
scopus_import: 1
status: public
title: ECHIDNA mediated post Golgi trafficking of auxin carriers for differential
cell elongation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 110
year: '2013'
...