Arabidopsis thaliana life without phytochromes

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Fil: Yanovsky, Marcelo J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.

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Autores principales: Strasser, Bárbara, Sánchez Lamas, Maximiliano, Yanovsky, Marcelo J., Casal, Jorge José, Cerdán, Pablo D.
Formato: article Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2010
Materias:
CLOCK
CRYPTOCHROME
PHYTOCHROME
BLUE LIGHT
COTYLEDON
FLOWERING
LIFE CYCLE
NONHUMAN
PHOTORECEPTOR
PHOTOSYNTHESIS
PLANT
RED LIGHT
SEEDLING
SENESCENCE
WHITE LIGHT
ARABIDOPSIS
ARABIDOPSIS PROTEINS
CHLOROPHYLL
CIRCADIAN RHYTHM
GERMINATION
GIBBERELLINS
LIGHT
MORPHOGENESIS
MUTATION
PHOTOTROPISM
PLANT GROWTH REGULATORS
PLANT LEAVES
SEEDS
ARABIDOPSIS THALIANA
Acceso en línea:http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2010Strasser
Aporte de:
FAUBA Digital - Facultad de Agronomía (UBA) de Universidad de Buenos Aires
id snrd:2010Strasser
record_format dspace
spelling snrd:2010Strasser2021-10-15T16:56:07Z Strasser, Bárbara Sánchez Lamas, Maximiliano Yanovsky, Marcelo J. Casal, Jorge José Cerdán, Pablo D. 2010 Fil: Yanovsky, Marcelo J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. Fil: Yanovsky, Marcelo J. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). 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. Plants use light as a source of energy for photosynthesis and as a source of environmental information perceived by photoreceptors. Testing whether plants can complete their cycle if light provides energy but no information about the environment requires a plant devoid of phytochromes because all photosynthetically active wavelengths activate phytochromes. Producing such a quintuple mutant of Arabidopsis thaliana has been challenging, but we were able to obtain it in the flowering locus T (ft) mutant background. The quintuple phytochrome mutant does not germinate in the FT background, but it germinates to some extent in the ft background. If germination problems are bypassed by the addition of gibberellins, the seedlings of the quintuple phytochrome mutant exposed to red light produce chlorophyll, indicating that phytochromes are not the sole redlight photoreceptors, but they become developmentally arrested shortly after the cotyledon stage. Blue light bypasses this blockage, rejecting the long-standing idea that the blue-light receptors cryptochromes cannot operate without phytochromes. After growth under white light, returning the quintuple phytochrome mutant to red light resulted in rapid senescence of already expanded leaves and severely impaired expansion of new leaves. We conclude that Arabidopsis development is stalled at several points in the presence of light suitable for photosynthesis but providing no photomorphogenic signal. application/pdf doi:10.1073/pnas.0910446107 issn:0027-8424 http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2010Strasser eng info:eu-repo/semantics/openAccess info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 Proceedings of the National Academy of Sciences of the United States of America Vol.107, no.10 4776-4781 http://www.nasonline.org/ CLOCK CRYPTOCHROME PHYTOCHROME BLUE LIGHT COTYLEDON FLOWERING LIFE CYCLE NONHUMAN PHOTORECEPTOR PHOTOSYNTHESIS PLANT RED LIGHT SEEDLING SENESCENCE WHITE LIGHT ARABIDOPSIS ARABIDOPSIS PROTEINS CHLOROPHYLL CIRCADIAN RHYTHM GERMINATION GIBBERELLINS LIGHT MORPHOGENESIS MUTATION PHOTOTROPISM PHYTOCHROME PLANT GROWTH REGULATORS PLANT LEAVES SEEDLING SEEDS ARABIDOPSIS THALIANA Arabidopsis thaliana life without phytochromes article 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 CLOCK
CRYPTOCHROME
PHYTOCHROME
BLUE LIGHT
COTYLEDON
FLOWERING
LIFE CYCLE
NONHUMAN
PHOTORECEPTOR
PHOTOSYNTHESIS
PLANT
RED LIGHT
SEEDLING
SENESCENCE
WHITE LIGHT
ARABIDOPSIS
ARABIDOPSIS PROTEINS
CHLOROPHYLL
CIRCADIAN RHYTHM
GERMINATION
GIBBERELLINS
LIGHT
MORPHOGENESIS
MUTATION
PHOTOTROPISM
PHYTOCHROME
PLANT GROWTH REGULATORS
PLANT LEAVES
SEEDLING
SEEDS
ARABIDOPSIS THALIANA
spellingShingle CLOCK
CRYPTOCHROME
PHYTOCHROME
BLUE LIGHT
COTYLEDON
FLOWERING
LIFE CYCLE
NONHUMAN
PHOTORECEPTOR
PHOTOSYNTHESIS
PLANT
RED LIGHT
SEEDLING
SENESCENCE
WHITE LIGHT
ARABIDOPSIS
ARABIDOPSIS PROTEINS
CHLOROPHYLL
CIRCADIAN RHYTHM
GERMINATION
GIBBERELLINS
LIGHT
MORPHOGENESIS
MUTATION
PHOTOTROPISM
PHYTOCHROME
PLANT GROWTH REGULATORS
PLANT LEAVES
SEEDLING
SEEDS
ARABIDOPSIS THALIANA
Strasser, Bárbara
Sánchez Lamas, Maximiliano
Yanovsky, Marcelo J.
Casal, Jorge José
Cerdán, Pablo D.
Arabidopsis thaliana life without phytochromes
topic_facet CLOCK
CRYPTOCHROME
PHYTOCHROME
BLUE LIGHT
COTYLEDON
FLOWERING
LIFE CYCLE
NONHUMAN
PHOTORECEPTOR
PHOTOSYNTHESIS
PLANT
RED LIGHT
SEEDLING
SENESCENCE
WHITE LIGHT
ARABIDOPSIS
ARABIDOPSIS PROTEINS
CHLOROPHYLL
CIRCADIAN RHYTHM
GERMINATION
GIBBERELLINS
LIGHT
MORPHOGENESIS
MUTATION
PHOTOTROPISM
PHYTOCHROME
PLANT GROWTH REGULATORS
PLANT LEAVES
SEEDLING
SEEDS
ARABIDOPSIS THALIANA
description Fil: Yanovsky, Marcelo J. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
format article
Artículo
Artículo
publishedVersion
publishedVersion
author Strasser, Bárbara
Sánchez Lamas, Maximiliano
Yanovsky, Marcelo J.
Casal, Jorge José
Cerdán, Pablo D.
author_facet Strasser, Bárbara
Sánchez Lamas, Maximiliano
Yanovsky, Marcelo J.
Casal, Jorge José
Cerdán, Pablo D.
author_sort Strasser, Bárbara
title Arabidopsis thaliana life without phytochromes
title_short Arabidopsis thaliana life without phytochromes
title_full Arabidopsis thaliana life without phytochromes
title_fullStr Arabidopsis thaliana life without phytochromes
title_full_unstemmed Arabidopsis thaliana life without phytochromes
title_sort arabidopsis thaliana life without phytochromes
publishDate 2010
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2010Strasser
work_keys_str_mv AT strasserbarbara arabidopsisthalianalifewithoutphytochromes
AT sanchezlamasmaximiliano arabidopsisthalianalifewithoutphytochromes
AT yanovskymarceloj arabidopsisthalianalifewithoutphytochromes
AT casaljorgejose arabidopsisthalianalifewithoutphytochromes
AT cerdanpablod arabidopsisthalianalifewithoutphytochromes
_version_ 1851371517213933568

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