GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock
- Autores
- Oliveiro, Karina Andrea; Crepy, Maria Andrea; Martin Tryon, Ellen L.; Milich, Raechel; Harmer, Stacey L.; Putterill, Jo; Yanovsky, Marcelo Javier; Casal, Jorge José
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- GIGANTEA (GI) is a nuclear protein involved in the promotion of flowering by long days, in light input to the circadian clock, and in seedling photomorphogenesis under continuous red light but not far-red light (FR). Here, we report that in Arabidopsis ( Arabidopsis thaliana ) different alleles of gi have defects in the hypocotyl-growth and cotyledon-unfolding responses to hourly pulses of FR, a treatment perceived by phytochrome A (phyA). This phenotype is rescued by overexpression of GI. The very- low-fluence response of seed germination was also reduced in gi . Since the circadian clock modulates many light responses, we investigated whether these gi phenotypes were due to alterations in the circadian system or light signaling per se. In exper- iments where FR pulses were given to dark-incubated seeds or seedlings at different times of the day, gi showed reduced seed germination, cotyledon unfolding, and activity of a luciferase reporter fused to the promoter of a chlorophyll a/b -binding protein gene; however, rhythmic sensitivity was normal in these plants. We conclude that while GI does not affect the high- irradiance responses of phyA, it does affect phyA-mediated very-low-fluence responses via mechanisms that do not obviously involve its circadian functions
Fil: Oliveiro, Karina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Crepy, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Martin Tryon, Ellen L.. University of California; Estados Unidos
Fil: Milich, Raechel. The University Of Auckland; Nueva Zelanda
Fil: Harmer, Stacey L.. University of California; Estados Unidos
Fil: Putterill, Jo. The University Of Auckland; Nueva Zelanda
Fil: Yanovsky, Marcelo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Casal, Jorge José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina - Materia
-
Flowering
Photomorphogenesis
Arabidopsis Thaliana - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31050
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GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clockOliveiro, Karina AndreaCrepy, Maria AndreaMartin Tryon, Ellen L.Milich, RaechelHarmer, Stacey L.Putterill, JoYanovsky, Marcelo JavierCasal, Jorge JoséFloweringPhotomorphogenesisArabidopsis Thalianahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1GIGANTEA (GI) is a nuclear protein involved in the promotion of flowering by long days, in light input to the circadian clock, and in seedling photomorphogenesis under continuous red light but not far-red light (FR). Here, we report that in Arabidopsis ( Arabidopsis thaliana ) different alleles of gi have defects in the hypocotyl-growth and cotyledon-unfolding responses to hourly pulses of FR, a treatment perceived by phytochrome A (phyA). This phenotype is rescued by overexpression of GI. The very- low-fluence response of seed germination was also reduced in gi . Since the circadian clock modulates many light responses, we investigated whether these gi phenotypes were due to alterations in the circadian system or light signaling per se. In exper- iments where FR pulses were given to dark-incubated seeds or seedlings at different times of the day, gi showed reduced seed germination, cotyledon unfolding, and activity of a luciferase reporter fused to the promoter of a chlorophyll a/b -binding protein gene; however, rhythmic sensitivity was normal in these plants. We conclude that while GI does not affect the high- irradiance responses of phyA, it does affect phyA-mediated very-low-fluence responses via mechanisms that do not obviously involve its circadian functionsFil: Oliveiro, Karina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Crepy, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Martin Tryon, Ellen L.. University of California; Estados UnidosFil: Milich, Raechel. The University Of Auckland; Nueva ZelandaFil: Harmer, Stacey L.. University of California; Estados UnidosFil: Putterill, Jo. The University Of Auckland; Nueva ZelandaFil: Yanovsky, Marcelo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Casal, Jorge José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaAmerican Society of Plant Biologist2007-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31050Casal, Jorge José; Yanovsky, Marcelo Javier; Putterill, Jo; Harmer, Stacey L.; Oliveiro, Karina Andrea; Milich, Raechel; et al.; GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock; American Society of Plant Biologist; Plant Physiology; 144; 1; 3-2007; 495-5020032-08891532-2548CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/144/1/495.longinfo:eu-repo/semantics/altIdentifier/doi/10.1104/pp.107.097048info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:04Zoai:ri.conicet.gov.ar:11336/31050instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:45:04.9CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
title |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
spellingShingle |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock Oliveiro, Karina Andrea Flowering Photomorphogenesis Arabidopsis Thaliana |
title_short |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
title_full |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
title_fullStr |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
title_full_unstemmed |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
title_sort |
GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock |
dc.creator.none.fl_str_mv |
Oliveiro, Karina Andrea Crepy, Maria Andrea Martin Tryon, Ellen L. Milich, Raechel Harmer, Stacey L. Putterill, Jo Yanovsky, Marcelo Javier Casal, Jorge José |
author |
Oliveiro, Karina Andrea |
author_facet |
Oliveiro, Karina Andrea Crepy, Maria Andrea Martin Tryon, Ellen L. Milich, Raechel Harmer, Stacey L. Putterill, Jo Yanovsky, Marcelo Javier Casal, Jorge José |
author_role |
author |
author2 |
Crepy, Maria Andrea Martin Tryon, Ellen L. Milich, Raechel Harmer, Stacey L. Putterill, Jo Yanovsky, Marcelo Javier Casal, Jorge José |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Flowering Photomorphogenesis Arabidopsis Thaliana |
topic |
Flowering Photomorphogenesis Arabidopsis Thaliana |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
GIGANTEA (GI) is a nuclear protein involved in the promotion of flowering by long days, in light input to the circadian clock, and in seedling photomorphogenesis under continuous red light but not far-red light (FR). Here, we report that in Arabidopsis ( Arabidopsis thaliana ) different alleles of gi have defects in the hypocotyl-growth and cotyledon-unfolding responses to hourly pulses of FR, a treatment perceived by phytochrome A (phyA). This phenotype is rescued by overexpression of GI. The very- low-fluence response of seed germination was also reduced in gi . Since the circadian clock modulates many light responses, we investigated whether these gi phenotypes were due to alterations in the circadian system or light signaling per se. In exper- iments where FR pulses were given to dark-incubated seeds or seedlings at different times of the day, gi showed reduced seed germination, cotyledon unfolding, and activity of a luciferase reporter fused to the promoter of a chlorophyll a/b -binding protein gene; however, rhythmic sensitivity was normal in these plants. We conclude that while GI does not affect the high- irradiance responses of phyA, it does affect phyA-mediated very-low-fluence responses via mechanisms that do not obviously involve its circadian functions Fil: Oliveiro, Karina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Crepy, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Martin Tryon, Ellen L.. University of California; Estados Unidos Fil: Milich, Raechel. The University Of Auckland; Nueva Zelanda Fil: Harmer, Stacey L.. University of California; Estados Unidos Fil: Putterill, Jo. The University Of Auckland; Nueva Zelanda Fil: Yanovsky, Marcelo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina Fil: Casal, Jorge José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina |
description |
GIGANTEA (GI) is a nuclear protein involved in the promotion of flowering by long days, in light input to the circadian clock, and in seedling photomorphogenesis under continuous red light but not far-red light (FR). Here, we report that in Arabidopsis ( Arabidopsis thaliana ) different alleles of gi have defects in the hypocotyl-growth and cotyledon-unfolding responses to hourly pulses of FR, a treatment perceived by phytochrome A (phyA). This phenotype is rescued by overexpression of GI. The very- low-fluence response of seed germination was also reduced in gi . Since the circadian clock modulates many light responses, we investigated whether these gi phenotypes were due to alterations in the circadian system or light signaling per se. In exper- iments where FR pulses were given to dark-incubated seeds or seedlings at different times of the day, gi showed reduced seed germination, cotyledon unfolding, and activity of a luciferase reporter fused to the promoter of a chlorophyll a/b -binding protein gene; however, rhythmic sensitivity was normal in these plants. We conclude that while GI does not affect the high- irradiance responses of phyA, it does affect phyA-mediated very-low-fluence responses via mechanisms that do not obviously involve its circadian functions |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-03 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/31050 Casal, Jorge José; Yanovsky, Marcelo Javier; Putterill, Jo; Harmer, Stacey L.; Oliveiro, Karina Andrea; Milich, Raechel; et al.; GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock; American Society of Plant Biologist; Plant Physiology; 144; 1; 3-2007; 495-502 0032-0889 1532-2548 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31050 |
identifier_str_mv |
Casal, Jorge José; Yanovsky, Marcelo Javier; Putterill, Jo; Harmer, Stacey L.; Oliveiro, Karina Andrea; Milich, Raechel; et al.; GIGANTEA regulates phytochrome A-mediated photomorphogenesis independently of its role in the circadian clock; American Society of Plant Biologist; Plant Physiology; 144; 1; 3-2007; 495-502 0032-0889 1532-2548 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/144/1/495.long info:eu-repo/semantics/altIdentifier/doi/10.1104/pp.107.097048 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Society of Plant Biologist |
publisher.none.fl_str_mv |
American Society of Plant Biologist |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613416925265920 |
score |
13.070432 |