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PYR/RCAR receptors contribute to Ozone-, Reduced Air Humidity-, Darkness- and CO2-Induced Stomatal Regulation

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PYR/RCAR receptors contribute to Ozone-, Reduced Air Humidity-, Darkness- and CO2-Induced Stomatal Regulation

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dc.contributor.author Merilo, Ebe es_ES
dc.contributor.author Laanemets, Kristiina es_ES
dc.contributor.author Hu, Honghong es_ES
dc.contributor.author Shaowu, Xue es_ES
dc.contributor.author Jakobson, Liina es_ES
dc.contributor.author Tulva, Ingmar es_ES
dc.contributor.author González Guzmán, Miguel es_ES
dc.contributor.author Rodríguez Egea, Pedro Luís es_ES
dc.contributor.author Schroeder, Julian es_ES
dc.contributor.author Brosche, Mikael es_ES
dc.contributor.author Kollist, Hannes es_ES
dc.date.accessioned 2017-06-07T08:49:57Z
dc.date.available 2017-06-07T08:49:57Z
dc.date.issued 2013-07
dc.identifier.issn 0032-0889
dc.identifier.uri http://hdl.handle.net/10251/82495
dc.description.abstract [EN] Rapid stomatal closure induced by changes in the environment, such as elevation of CO2, reduction of air humidity, darkness, and pulses of the air pollutant ozone (O-3), involves the SLOW ANION CHANNEL1 (SLAC1). SLAC1 is activated by OPEN STOMATA1 (OST1) and Ca2+-dependent protein kinases. OST1 activation is controlled through abscisic acid (ABA)-induced inhibition of type 2 protein phosphatases (PP2C) by PYRABACTIN RESISTANCE/REGULATORY COMPONENTS OF ABA RECEPTOR (PYR/RCAR) receptor proteins. To address the role of signaling through PYR/RCARs for whole-plant steady-state stomatal conductance and stomatal closure induced by environmental factors, we used a set of Arabidopsis (Arabidopsis thaliana) mutants defective in ABA metabolism/signaling. The stomatal conductance values varied severalfold among the studied mutants, indicating that basal ABA signaling through PYR/RCAR receptors plays a fundamental role in controlling whole-plant water loss through stomata. PYR/RCAR-dependent inhibition of PP2Cs was clearly required for rapid stomatal regulation in response to darkness, reduced air humidity, and O-3. Furthermore, PYR/RCAR proteins seem to function in a dose-dependent manner, and there is a functional diversity among them. Although a rapid stomatal response to elevated CO2 was evident in all but slac1 and ost1 mutants, the bicarbonate-induced activation of S-type anion channels was reduced in the dominant active PP2C mutants abi1-1 and abi2-1. Further experiments with a wider range of CO2 concentrations and analyses of stomatal response kinetics suggested that the ABA signalosome partially affects the CO2-induced stomatal response. Thus, we show that PYR/RCAR receptors play an important role for the whole-plant stomatal adjustments and responses to low humidity, darkness, and O-3 and are involved in responses to elevated CO2. es_ES
dc.description.sponsorship This work was supported by the Estonian Ministry of Science and Education (grant no. IUT2-21), by the European Regional (Center of Excellence in Environmental Adaptation) and Social (Mobilitas Top Researchers grant no. MTT9) Fund, by the National Science Foundation (grant no. MCB0918220 to J.I.S.) and the National Institutes of Health (grant no. R01GM060396 to J.I.S.), by Shanxi Scholarship Council of China (grant no. 2011-012 to S.X.), by Shanxi Technology Foundation and Natural Science Foundation of Shanxi (grant no. 2012011006-4 to S.X.), and by Ministerio de Economia y Competitividad (grant no. BIO2011-23446 to P.L.R.). en_EN
dc.language Inglés es_ES
dc.publisher American Society of Plant Biologists es_ES
dc.relation HM/IUT2-21
dc.relation FEDER/MTT9
dc.relation NIH/R01GM060396
dc.relation CSC/2011-012 to S.X
dc.relation MINECO/BIO2011-23446 to P.L.R
dc.relation NSF/MCB0918220
dc.relation.ispartof Plant Physiology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject S-type anion es_ES
dc.subject 2C protein phosphatases es_ES
dc.subject Arabidopsis guard-cells es_ES
dc.subject Abscisic-acid es_ES
dc.subject Signal-transduction es_ES
dc.subject Hydrogen-Peroxide es_ES
dc.subject Relative-humidity es_ES
dc.subject ABI2-1 mutants es_ES
dc.subject Channel SLAC1 es_ES
dc.subject Plant-cells es_ES
dc.subject.classification MICROBIOLOGIA es_ES
dc.subject.classification BIOQUIMICA Y BIOLOGIA MOLECULAR es_ES
dc.title PYR/RCAR receptors contribute to Ozone-, Reduced Air Humidity-, Darkness- and CO2-Induced Stomatal Regulation es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1104/pp.113.220608
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.description.bibliographicCitation Merilo, E.; Laanemets, K.; Hu, H.; Shaowu, X.; Jakobson, L.; Tulva, I.; Gonzalez Guzman, M.... (2013). PYR/RCAR receptors contribute to Ozone-, Reduced Air Humidity-, Darkness- and CO2-Induced Stomatal Regulation. Plant Physiology. 162(3):1652-1668. doi:10.1104/pp.113.220608 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1104/pp.113.220608 es_ES
dc.description.upvformatpinicio 1652 es_ES
dc.description.upvformatpfin 1668 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 162 es_ES
dc.description.issue 3 es_ES
dc.relation.senia 259611 es_ES
dc.identifier.eissn 1532-2548
dc.identifier.pmid 23703845
dc.contributor.funder Estonian Ministry of Science and Education
dc.contributor.funder European Regional Development Fund
dc.contributor.funder National Science Foundation, EEUU
dc.contributor.funder National Institutes of Health, EEUU
dc.contributor.funder China Scholarship Council
dc.contributor.funder Shanxi Shengmeitan Occupation Technology Education Development Foundation
dc.contributor.funder Shanxi Province Natural Science Foundation
dc.contributor.funder Ministerio de Economía y Competitividad


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