Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript

33 páginas, 3 tablas, 6 figuras. -- The definitive version is available at http://www.elservier.com

Detalhes bibliográficos
Autores: Córdoba, Javier, Molina-Cano, José Luis, Pérez Pérez, Pilar, Morcuende, Rosa, Moralejo, Marian, Savé, Robert, Martínez-Carrasco, Rafael
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2015
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/126612
Acesso em linha:http://hdl.handle.net/10261/126612
Access Level:Acceso aberto
Palavra-chave:CO2
Hordeum vulgare
Photosynthetic electron transport
Signalling
SLAH3
Stomatal conductance
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spelling Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcriptCórdoba, JavierMolina-Cano, José LuisPérez Pérez, PilarMorcuende, RosaMoralejo, MarianSavé, RobertMartínez-Carrasco, RafaelCO2Hordeum vulgarePhotosynthetic electron transportSignallingSLAH3Stomatal conductance33 páginas, 3 tablas, 6 figuras. -- The definitive version is available at http://www.elservier.comThe mechanisms of stomatal sensitivity to CO2 are yet to be fully understood. The role of photosynthetic and non-photosynthetic factors in stomatal responses to CO2 was investigated in wild-type barley (Hordeum vulgare var. Graphic) and in a mutant (G132) with decreased photochemical and Rubisco capacities. The CO2 and DCMU responses of stomatal conductance (gs), gas exchange, chlorophyll fluorescence and levels of ATP, with a putative transcript for stomatal opening were analysed. G132 had greater gs than the wild-type, despite lower photosynthesis rates and higher intercellular CO2 concentrations (Ci). The mutant had Rubisco-limited photosynthesis at very high CO2 levels, and higher ATP contents than the wild-type. Stomatal sensitivity to CO2 under red light was lower in G132 than in the wild-type, both in photosynthesizing and DCMU-inhibited leaves. Under constant Ci and red light, stomatal sensitivity to DCMU inhibition was higher in G132. The levels of a SLAH3-like slow anion channel transcript, involved in stomatal closure, decreased sharply in G132. The results suggest that stomatal responses to CO2 depend partly on the balance of photosynthetic electron transport to carbon assimilation capacities, but are partially regulated by the CO2 signalling network. High gs can improve the adaptation to climate change in wellwatered conditions.This work was funded by the Spanish Research and Development Programme-European Regional Development Fund, ERDF (Projects RTA2009-00006-C04-01 and AGL2009-11987) and the regional government, the Junta de Castilla y León (Projects CSI148A11-2 and CSI250U13).Peer reviewedElsevierEuropean CommissionJunta de Castilla y LeónConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/126612reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.plantsci.2015.07.011Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1266122026-05-22T06:33:51Z
dc.title.none.fl_str_mv Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
title Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
spellingShingle Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
Córdoba, Javier
CO2
Hordeum vulgare
Photosynthetic electron transport
Signalling
SLAH3
Stomatal conductance
title_short Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
title_full Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
title_fullStr Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
title_full_unstemmed Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
title_sort Photosynthesis-dependent/independent control of stomatal responses to CO2 in mutant barley with surplus electron transport capacity and reduced SLAH3 anion channel transcript
dc.creator.none.fl_str_mv Córdoba, Javier
Molina-Cano, José Luis
Pérez Pérez, Pilar
Morcuende, Rosa
Moralejo, Marian
Savé, Robert
Martínez-Carrasco, Rafael
author Córdoba, Javier
author_facet Córdoba, Javier
Molina-Cano, José Luis
Pérez Pérez, Pilar
Morcuende, Rosa
Moralejo, Marian
Savé, Robert
Martínez-Carrasco, Rafael
author_role author
author2 Molina-Cano, José Luis
Pérez Pérez, Pilar
Morcuende, Rosa
Moralejo, Marian
Savé, Robert
Martínez-Carrasco, Rafael
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Junta de Castilla y León
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv CO2
Hordeum vulgare
Photosynthetic electron transport
Signalling
SLAH3
Stomatal conductance
topic CO2
Hordeum vulgare
Photosynthetic electron transport
Signalling
SLAH3
Stomatal conductance
description 33 páginas, 3 tablas, 6 figuras. -- The definitive version is available at http://www.elservier.com
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/126612
url http://hdl.handle.net/10261/126612
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.plantsci.2015.07.011
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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