Phytochrome regulation of branching in arabidopsis

The red light:far-red light ratio perceived by phytochromes controls plastic traits of plant architecture, including branching. Despite the significance of branching for plant fitness and productivity, there is little quantitative and mechanistic information concerning phytochrome control of branchi...

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Autores: Finlayson, Scott A., Krishnareddy, Srirama R., Kebrom, Tesfamichael H., Casal, Jorge José
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/72292
Acesso em linha:http://hdl.handle.net/11336/72292
Access Level:acceso abierto
Palavra-chave:Branching
Phytochrome
Arabidopsis thaliana
Development
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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repository_id_str
spelling Phytochrome regulation of branching in arabidopsisFinlayson, Scott A.Krishnareddy, Srirama R.Kebrom, Tesfamichael H.Casal, Jorge JoséBranchingPhytochromeArabidopsis thalianaDevelopmenthttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The red light:far-red light ratio perceived by phytochromes controls plastic traits of plant architecture, including branching. Despite the significance of branching for plant fitness and productivity, there is little quantitative and mechanistic information concerning phytochrome control of branching responses in Arabidopsis (Arabidopsis thaliana). Here, we show that in Arabidopsis, the negative effects of the phytochrome B mutation and of low red light:far-red light ratio on branching were largely due to reduced bud outgrowth capacity and an increased degree of correlative inhibition acting on the buds rather than due to a reduced number of leaves and buds available for branching. Phytochrome effects on the degree of correlative inhibition required functional BRANCHED1 (BRC1), BRC2, AXR1, MORE AXILLARY GROWTH2 (MAX2), and MAX4. The analysis of gene expression in selected buds indicated that BRC1 and BRC2 are part of different gene networks. The BRC1 network is linked to the growth capacity of specific buds, while the BRC2 network is associated with coordination of growth among branches. We conclude that the branching integrators BRC1 and BRC2 are necessary for responses to phytochrome, but they contribute differentially to these responses, likely acting through divergent pathways. © 2010 American Society of Plant Biologists.Fil: Finlayson, Scott A.. Texas A&M University; Estados UnidosFil: Krishnareddy, Srirama R.. Texas A&M University; Estados UnidosFil: Kebrom, Tesfamichael H.. Texas A&M University; Estados UnidosFil: 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; ArgentinaAmerican Society of Plant Biologist2010-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72292Finlayson, Scott A.; Krishnareddy, Srirama R.; Kebrom, Tesfamichael H.; Casal, Jorge José; Phytochrome regulation of branching in arabidopsis; American Society of Plant Biologist; Plant Physiology; 152; 4; 4-2010; 1914-19270032-0889CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1104/pp.109.148833info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/152/4/1914info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:50:12Zoai:ri.conicet.gov.ar:11336/72292instacron: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:34982024-05-08 13:50:12.698CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phytochrome regulation of branching in arabidopsis
title Phytochrome regulation of branching in arabidopsis
spellingShingle Phytochrome regulation of branching in arabidopsis
Finlayson, Scott A.
Branching
Phytochrome
Arabidopsis thaliana
Development
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Phytochrome regulation of branching in arabidopsis
title_full Phytochrome regulation of branching in arabidopsis
title_fullStr Phytochrome regulation of branching in arabidopsis
title_full_unstemmed Phytochrome regulation of branching in arabidopsis
title_sort Phytochrome regulation of branching in arabidopsis
dc.creator.none.fl_str_mv Finlayson, Scott A.
Krishnareddy, Srirama R.
Kebrom, Tesfamichael H.
Casal, Jorge José
author Finlayson, Scott A.
author_facet Finlayson, Scott A.
Krishnareddy, Srirama R.
Kebrom, Tesfamichael H.
Casal, Jorge José
author_role author
author2 Krishnareddy, Srirama R.
Kebrom, Tesfamichael H.
Casal, Jorge José
author2_role author
author
author
dc.subject.none.fl_str_mv Branching
Phytochrome
Arabidopsis thaliana
Development
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Branching
Phytochrome
Arabidopsis thaliana
Development
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description The red light:far-red light ratio perceived by phytochromes controls plastic traits of plant architecture, including branching. Despite the significance of branching for plant fitness and productivity, there is little quantitative and mechanistic information concerning phytochrome control of branching responses in Arabidopsis (Arabidopsis thaliana). Here, we show that in Arabidopsis, the negative effects of the phytochrome B mutation and of low red light:far-red light ratio on branching were largely due to reduced bud outgrowth capacity and an increased degree of correlative inhibition acting on the buds rather than due to a reduced number of leaves and buds available for branching. Phytochrome effects on the degree of correlative inhibition required functional BRANCHED1 (BRC1), BRC2, AXR1, MORE AXILLARY GROWTH2 (MAX2), and MAX4. The analysis of gene expression in selected buds indicated that BRC1 and BRC2 are part of different gene networks. The BRC1 network is linked to the growth capacity of specific buds, while the BRC2 network is associated with coordination of growth among branches. We conclude that the branching integrators BRC1 and BRC2 are necessary for responses to phytochrome, but they contribute differentially to these responses, likely acting through divergent pathways. © 2010 American Society of Plant Biologists.
publishDate 2010
dc.date.none.fl_str_mv 2010-04
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/11336/72292
Finlayson, Scott A.; Krishnareddy, Srirama R.; Kebrom, Tesfamichael H.; Casal, Jorge José; Phytochrome regulation of branching in arabidopsis; American Society of Plant Biologist; Plant Physiology; 152; 4; 4-2010; 1914-1927
0032-0889
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72292
identifier_str_mv Finlayson, Scott A.; Krishnareddy, Srirama R.; Kebrom, Tesfamichael H.; Casal, Jorge José; Phytochrome regulation of branching in arabidopsis; American Society of Plant Biologist; Plant Physiology; 152; 4; 4-2010; 1914-1927
0032-0889
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1104/pp.109.148833
info:eu-repo/semantics/altIdentifier/url/http://www.plantphysiol.org/content/152/4/1914
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
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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score 15,81155

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