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resumen

Resumen
Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity [ver mas...]
dc.contributor.authorLuna, Celina Mercedes
dc.contributor.authorPastori, Gabriela M.
dc.contributor.authorDriscoll, Simon
dc.contributor.authorGroten, Karin
dc.contributor.authorBernard, Stephanie
dc.contributor.authorFoyer, Christine H.
dc.date.accessioned2020-06-22T12:26:48Z
dc.date.available2020-06-22T12:26:48Z
dc.date.issued2005-01
dc.identifier.issn0022-0957
dc.identifier.issn1460-2431
dc.identifier.otherhttps://doi.org/10.1093/jxb/eri039
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7448
dc.identifier.urihttps://academic.oup.com/jxb/article/56/411/417/429881
dc.description.abstractPlants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity doubled under severe drought conditions. Diurnal regulation of CAT1 and CAT2 mRNA abundance was apparent in all conditions and day/night CAT1 and CAT2 expression patterns were modified by mild and severe drought. The abundance of CAT1 transcripts was regulated by circadian controls that persisted in continuous darkness, while CAT2 was modulated by light. Drought decreased abundance, and modified the pattern, of CAT1 and CAT2 mRNAs. It was concluded that the complex regulation of CAT mRNA, particularly at the level of translation, allows precise control of leaf H2O2 accumulation.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSociety for Experimental Biologyes_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourceJournal of Experimental Botany 56 (411) : 417–423. (January 2005)es_AR
dc.subjectTrigoes_AR
dc.subjectWheateng
dc.subjectSequíaes_AR
dc.subjectDroughteng
dc.subjectCatalasaes_AR
dc.subjectCatalaseeng
dc.subjectExpresión Génicaes_AR
dc.subjectGene Expressioneng
dc.subjectPeróxido de Hidrógenoes_AR
dc.subjectHydrogen Peroxideeng
dc.titleDrought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheates_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.description.origenInstituto de Fisiología y Recursos Genéticos Vegetaleses_AR
dc.description.filFil: Luna, Celina Mercedes. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales (ex IFFIVE); Argentinaes_AR
dc.description.filFil: Pastori, Gabriela M. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretañaes_AR
dc.description.filFil: Driscoll, Simon. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretañaes_AR
dc.description.filFil: Groten, Karin. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretañaes_AR
dc.description.filFil: Bernard, Stephanie. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretañaes_AR
dc.description.filFil: Foyer, Christine H. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretañaes_AR
dc.subtypecientifico


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