---
_id: '2874'
abstract:
- lang: eng
  text: The apical hook develops in the upper part of the hypocotyl when seeds buried
    in the soil germinate, and serves to protect cotyledons and the shoot apical meristem
    from possible damage caused by pushing through the soil. The curvature is formed
    through differential cell growth that occurs at the two opposite sides of the
    hypocotyl, and it is established by a gradient of auxin activity and refined by
    the coordinated action of auxin and ethylene. Here we show that gibberellins (GAs)
    promote hook development through the transcriptional regulation of several genes
    of the ethylene and auxin pathways in Arabidopsis. The level of GA activity determines
    the speed of hook formation and the extent of the curvature during the formation
    phase independently of ethylene, probably by modulating auxin transport and response
    through HLS1, PIN3, and PIN7. Moreover, GAs cooperate with ethylene in preventing
    hook opening, in part through the induction of ethylene production mediated by
    ACS5/ETO2 and ACS8.
author:
- first_name: Javier
  full_name: Gallego-Bartolomé, Javier
  last_name: Gallego Bartolomé
- first_name: María
  full_name: Arana, María V
  last_name: Arana
- first_name: Filip
  full_name: Vandenbussche, Filip
  last_name: Vandenbussche
- first_name: Petra
  full_name: Žádníková, Petra
  last_name: Žádníková
- first_name: Eugenio
  full_name: Minguet, Eugenio G
  last_name: Minguet
- first_name: Vicente
  full_name: Guardiola, Vicente
  last_name: Guardiola
- first_name: Dominique
  full_name: Van Der Straeten, Dominique
  last_name: Van Der Straeten
- first_name: Eva
  full_name: Eva Benková
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: David
  full_name: Alabadí, David
  last_name: Alabadí
- first_name: Miguel
  full_name: Blázquez, Miguel A
  last_name: Blázquez
citation:
  ama: Gallego Bartolomé J, Arana M, Vandenbussche F, et al. Hierarchy of hormone
    action controlling apical hook development in Arabidopsis. <i>Plant Journal</i>.
    2011;67(4):622-634. doi:<a href="https://doi.org/10.1111/j.1365-313X.2011.04621.x">10.1111/j.1365-313X.2011.04621.x</a>
  apa: Gallego Bartolomé, J., Arana, M., Vandenbussche, F., Žádníková, P., Minguet,
    E., Guardiola, V., … Blázquez, M. (2011). Hierarchy of hormone action controlling
    apical hook development in Arabidopsis. <i>Plant Journal</i>. Wiley-Blackwell.
    <a href="https://doi.org/10.1111/j.1365-313X.2011.04621.x">https://doi.org/10.1111/j.1365-313X.2011.04621.x</a>
  chicago: Gallego Bartolomé, Javier, María Arana, Filip Vandenbussche, Petra Žádníková,
    Eugenio Minguet, Vicente Guardiola, Dominique Van Der Straeten, Eva Benková, David
    Alabadí, and Miguel Blázquez. “Hierarchy of Hormone Action Controlling Apical
    Hook Development in Arabidopsis.” <i>Plant Journal</i>. Wiley-Blackwell, 2011.
    <a href="https://doi.org/10.1111/j.1365-313X.2011.04621.x">https://doi.org/10.1111/j.1365-313X.2011.04621.x</a>.
  ieee: J. Gallego Bartolomé <i>et al.</i>, “Hierarchy of hormone action controlling
    apical hook development in Arabidopsis,” <i>Plant Journal</i>, vol. 67, no. 4.
    Wiley-Blackwell, pp. 622–634, 2011.
  ista: Gallego Bartolomé J, Arana M, Vandenbussche F, Žádníková P, Minguet E, Guardiola
    V, Van Der Straeten D, Benková E, Alabadí D, Blázquez M. 2011. Hierarchy of hormone
    action controlling apical hook development in Arabidopsis. Plant Journal. 67(4),
    622–634.
  mla: Gallego Bartolomé, Javier, et al. “Hierarchy of Hormone Action Controlling
    Apical Hook Development in Arabidopsis.” <i>Plant Journal</i>, vol. 67, no. 4,
    Wiley-Blackwell, 2011, pp. 622–34, doi:<a href="https://doi.org/10.1111/j.1365-313X.2011.04621.x">10.1111/j.1365-313X.2011.04621.x</a>.
  short: J. Gallego Bartolomé, M. Arana, F. Vandenbussche, P. Žádníková, E. Minguet,
    V. Guardiola, D. Van Der Straeten, E. Benková, D. Alabadí, M. Blázquez, Plant
    Journal 67 (2011) 622–634.
date_created: 2018-12-11T12:00:04Z
date_published: 2011-08-01T00:00:00Z
date_updated: 2021-01-12T07:00:24Z
day: '01'
doi: 10.1111/j.1365-313X.2011.04621.x
extern: 1
intvolume: '        67'
issue: '4'
month: '08'
page: 622 - 634
publication: Plant Journal
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3891'
quality_controlled: 0
status: public
title: Hierarchy of hormone action controlling apical hook development in Arabidopsis
type: journal_article
volume: 67
year: '2011'
...