Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis

Shade perception involves altered hormone synthesis and sensitivity. Here, we showed that several shade regulators act as positive and negative modulators of the hypocotyl auxin and/or brassinosteroid-induced elongation. The s hade a voidance s yndrome (SAS) refers to a set of plant responses initia...

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Autores: Bou Torrent, Jordi, Galstyan, Anahit, Gallemí, Marçal|||0000-0003-4675-6893, Cifuentes-Esquivel, Nicolás, Molina-Contreras, Maria José, Salla Martret, Mercè|||0000-0002-9092-8704, Jikumaru, Yusuke, Yamaguchi, Shinjiro, Kamiya, Yuji, Martínez-García, Jaume F.|||0000-0003-1516-0341
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:185013
Acceso en línea:https://ddd.uab.cat/record/185013
https://dx.doi.org/urn:doi:10.1093/jxb/eru083
Access Level:acceso abierto
Palabra clave:Arabidopsis
Auxins
Brassinosteroids
Gibberellins
Hypocotyl elongation
Plant proximity
Shade avoidance syndrome
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spelling Plant proximity perception dynamically modulates hormone levels and sensitivity in ArabidopsisBou Torrent, JordiGalstyan, AnahitGallemí, Marçal|||0000-0003-4675-6893Cifuentes-Esquivel, NicolásMolina-Contreras, Maria JoséSalla Martret, Mercè|||0000-0002-9092-8704Jikumaru, YusukeYamaguchi, ShinjiroKamiya, YujiMartínez-García, Jaume F.|||0000-0003-1516-0341ArabidopsisAuxinsBrassinosteroidsGibberellinsHypocotyl elongationPlant proximityShade avoidance syndromeShade perception involves altered hormone synthesis and sensitivity. Here, we showed that several shade regulators act as positive and negative modulators of the hypocotyl auxin and/or brassinosteroid-induced elongation. The s hade a voidance s yndrome (SAS) refers to a set of plant responses initiated after perception by the phytochromes of light enriched in far-red colour reflected from or filtered by neighbouring plants. These varied responses are aimed at anticipating eventual shading from potential competitor vegetation. In Arabidopsis thaliana, the most obvious SAS response at the seedling stage is the increase in hypocotyl elongation. Here, we describe how plant proximity perception rapidly and temporally alters the levels of not only auxins but also active brassinosteroids and gibberellins. At the same time, shade alters the seedling sensitivity to hormones. Plant proximity perception also involves dramatic changes in gene expression that rapidly result in a new balance between positive and negative factors in a network of interacting basic helix-loop-helix proteins, such as HFR1, PAR1, and BIM and BEE factors. Here, it was shown that several of these factors act as auxin- and BR-responsiveness modulators, which ultimately control the intensity or degree of hypocotyl elongation. It was deduced that, as a consequence of the plant proximity-dependent new, dynamic, and local balance between hormone synthesis and sensitivity (mechanistically resulting from a restructured network of SAS regulators), SAS responses are unleashed and hypocotyls elongate. 22014-01-0120142014-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/185013https://dx.doi.org/urn:doi:10.1093/jxb/eru083reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Ciencia e Innovación https://doi.org/10.13039/501100004837 BIO2011-23489Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 BIO2008-00169Ministerio de Educación y Ciencia https://doi.org/10.13039/501100003329 CSD2007-00036Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-697open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1850132026-06-06T12:50:31Z
dc.title.none.fl_str_mv Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
title Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
spellingShingle Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
Bou Torrent, Jordi
Arabidopsis
Auxins
Brassinosteroids
Gibberellins
Hypocotyl elongation
Plant proximity
Shade avoidance syndrome
title_short Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
title_full Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
title_fullStr Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
title_full_unstemmed Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
title_sort Plant proximity perception dynamically modulates hormone levels and sensitivity in Arabidopsis
dc.creator.none.fl_str_mv Bou Torrent, Jordi
Galstyan, Anahit
Gallemí, Marçal|||0000-0003-4675-6893
Cifuentes-Esquivel, Nicolás
Molina-Contreras, Maria José
Salla Martret, Mercè|||0000-0002-9092-8704
Jikumaru, Yusuke
Yamaguchi, Shinjiro
Kamiya, Yuji
Martínez-García, Jaume F.|||0000-0003-1516-0341
author Bou Torrent, Jordi
author_facet Bou Torrent, Jordi
Galstyan, Anahit
Gallemí, Marçal|||0000-0003-4675-6893
Cifuentes-Esquivel, Nicolás
Molina-Contreras, Maria José
Salla Martret, Mercè|||0000-0002-9092-8704
Jikumaru, Yusuke
Yamaguchi, Shinjiro
Kamiya, Yuji
Martínez-García, Jaume F.|||0000-0003-1516-0341
author_role author
author2 Galstyan, Anahit
Gallemí, Marçal|||0000-0003-4675-6893
Cifuentes-Esquivel, Nicolás
Molina-Contreras, Maria José
Salla Martret, Mercè|||0000-0002-9092-8704
Jikumaru, Yusuke
Yamaguchi, Shinjiro
Kamiya, Yuji
Martínez-García, Jaume F.|||0000-0003-1516-0341
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Arabidopsis
Auxins
Brassinosteroids
Gibberellins
Hypocotyl elongation
Plant proximity
Shade avoidance syndrome
topic Arabidopsis
Auxins
Brassinosteroids
Gibberellins
Hypocotyl elongation
Plant proximity
Shade avoidance syndrome
description Shade perception involves altered hormone synthesis and sensitivity. Here, we showed that several shade regulators act as positive and negative modulators of the hypocotyl auxin and/or brassinosteroid-induced elongation. The s hade a voidance s yndrome (SAS) refers to a set of plant responses initiated after perception by the phytochromes of light enriched in far-red colour reflected from or filtered by neighbouring plants. These varied responses are aimed at anticipating eventual shading from potential competitor vegetation. In Arabidopsis thaliana, the most obvious SAS response at the seedling stage is the increase in hypocotyl elongation. Here, we describe how plant proximity perception rapidly and temporally alters the levels of not only auxins but also active brassinosteroids and gibberellins. At the same time, shade alters the seedling sensitivity to hormones. Plant proximity perception also involves dramatic changes in gene expression that rapidly result in a new balance between positive and negative factors in a network of interacting basic helix-loop-helix proteins, such as HFR1, PAR1, and BIM and BEE factors. Here, it was shown that several of these factors act as auxin- and BR-responsiveness modulators, which ultimately control the intensity or degree of hypocotyl elongation. It was deduced that, as a consequence of the plant proximity-dependent new, dynamic, and local balance between hormone synthesis and sensitivity (mechanistically resulting from a restructured network of SAS regulators), SAS responses are unleashed and hypocotyls elongate.
publishDate 2014
dc.date.none.fl_str_mv 2
2014-01-01
2014
2014-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/185013
https://dx.doi.org/urn:doi:10.1093/jxb/eru083
url https://ddd.uab.cat/record/185013
https://dx.doi.org/urn:doi:10.1093/jxb/eru083
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 BIO2011-23489
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 BIO2008-00169
Ministerio de Educación y Ciencia https://doi.org/10.13039/501100003329 CSD2007-00036
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2009/SGR-697
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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