Hormonal networks involved in apical hook development in darkness and their response to light

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Fil: Mazzella, María Agustina. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, “Dr. Héctor Torres” (INGEBI-CONICET). Buenos Aires, Argentina.

Detalles Bibliográficos
Autores principales: Mazzella, María Agustina, Casal, Jorge José, Muschietti, Jorge Prometeo, Fox, Ana Romina
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2014
Materias:
APICAL HOOK
ARABIDOPSIS
AUXIN
COP1
ETHYLENE
GIBBERELLINS
PHOTORECEPTORS
PIFS
Acceso en línea:http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2014mazzella
Aporte de:
FAUBA Digital - Facultad de Agronomía (UBA) de Universidad de Buenos Aires
id snrd:2014mazzella
record_format dspace
spelling snrd:2014mazzella2021-10-15T16:56:07Z Mazzella, María Agustina Casal, Jorge José Muschietti, Jorge Prometeo Fox, Ana Romina 2014 Fil: Mazzella, María Agustina. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, “Dr. Héctor Torres” (INGEBI-CONICET). Buenos Aires, Argentina. Fil: Casal, Jorge José. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. Fil: Casal, Jorge José. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. Fil: Casal, Jorge José. CONICET. Fundación Instituto Leloir. Instituto de Investigaciones Bioquımicas de Buenos Aires. Buenos Aires. Argentina. Fil: Muschietti, Jorge Prometeo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Buenos Aires, Argentina. Fil: Muschietti, Jorge Prometeo. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, “Dr. Héctor Torres” (INGEBI-CONICET). Buenos Aires, Argentina. Fil: Fox, Ana Romina. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, “Dr. Héctor Torres” (INGEBI-CONICET). Buenos Aires, Argentina. In darkness, the dicot seedlings produce an apical hook as result of differential cell division and extension at opposite sides of the hypocotyl. This hook protects the apical meristem from mechanical damage during seedling emergence from the soil. In darkness, gibberellins act via the DELLA-PIF (PHYTOCHROME INTERACTING FACTORs) pathway, and ethylene acts via the EIN3/EIL1 (ETHYLENE INSENSITIVE 3/EIN3 like 1) -HLS1 (HOOKLESS 1) pathway to control the asymmetric accumulation of auxin required for apical hook formation and maintenance. These core pathways form a network with multiple points of connection. Light perception by phytochromes and cryptochromes reduces the activity of PIFs and (COP1) CONSTITUTIVE PHOTOMORPHOGENIC 1-both required for hook formation in darkness-, lowers the levels of gibberellins, and triggers hook opening as a component of the switch between heterotrophic and photoautotrophic development. Apical hook opening is thus a suitable model to study the convergence of endogenous and exogenous signals on the control of cell division and cell growth. application/pdf doi:10.3389/fpls.2014.00052 issn:1664-462X http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2014mazzella eng info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 Frontiers in Plant Science Vol.5 art.52 http://www.frontiersin.org APICAL HOOK ARABIDOPSIS AUXIN COP1 ETHYLENE GIBBERELLINS PHOTORECEPTORS PIFS Hormonal networks involved in apical hook development in darkness and their response to light info:eu-repo/semantics/article info:ar-repo/semantics/artículo publishedVersion info:eu-repo/semantics/publishedVersion
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-140
collection FAUBA Digital - Facultad de Agronomía (UBA)
language Inglés
orig_language_str_mv eng
topic APICAL HOOK
ARABIDOPSIS
AUXIN
COP1
ETHYLENE
GIBBERELLINS
PHOTORECEPTORS
PIFS
spellingShingle APICAL HOOK
ARABIDOPSIS
AUXIN
COP1
ETHYLENE
GIBBERELLINS
PHOTORECEPTORS
PIFS
Mazzella, María Agustina
Casal, Jorge José
Muschietti, Jorge Prometeo
Fox, Ana Romina
Hormonal networks involved in apical hook development in darkness and their response to light
topic_facet APICAL HOOK
ARABIDOPSIS
AUXIN
COP1
ETHYLENE
GIBBERELLINS
PHOTORECEPTORS
PIFS
description Fil: Mazzella, María Agustina. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, “Dr. Héctor Torres” (INGEBI-CONICET). Buenos Aires, Argentina.
format Artículo
Artículo
publishedVersion
publishedVersion
author Mazzella, María Agustina
Casal, Jorge José
Muschietti, Jorge Prometeo
Fox, Ana Romina
author_facet Mazzella, María Agustina
Casal, Jorge José
Muschietti, Jorge Prometeo
Fox, Ana Romina
author_sort Mazzella, María Agustina
title Hormonal networks involved in apical hook development in darkness and their response to light
title_short Hormonal networks involved in apical hook development in darkness and their response to light
title_full Hormonal networks involved in apical hook development in darkness and their response to light
title_fullStr Hormonal networks involved in apical hook development in darkness and their response to light
title_full_unstemmed Hormonal networks involved in apical hook development in darkness and their response to light
title_sort hormonal networks involved in apical hook development in darkness and their response to light
publishDate 2014
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2014mazzella
work_keys_str_mv AT mazzellamariaagustina hormonalnetworksinvolvedinapicalhookdevelopmentindarknessandtheirresponsetolight
AT casaljorgejose hormonalnetworksinvolvedinapicalhookdevelopmentindarknessandtheirresponsetolight
AT muschiettijorgeprometeo hormonalnetworksinvolvedinapicalhookdevelopmentindarknessandtheirresponsetolight
AT foxanaromina hormonalnetworksinvolvedinapicalhookdevelopmentindarknessandtheirresponsetolight
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