Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
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. Dro...
| Autores principales: | , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Society for Experimental Biology
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/7448 https://academic.oup.com/jxb/article/56/411/417/429881 https://doi.org/10.1093/jxb/eri039 |
| _version_ | 1855484011590189056 |
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| author | Luna, Celina Mercedes Pastori, Gabriela M. Driscoll, Simon Groten, Karin Bernard, Stephanie Foyer, Christine H. |
| author_browse | Bernard, Stephanie Driscoll, Simon Foyer, Christine H. Groten, Karin Luna, Celina Mercedes Pastori, Gabriela M. |
| author_facet | Luna, Celina Mercedes Pastori, Gabriela M. Driscoll, Simon Groten, Karin Bernard, Stephanie Foyer, Christine H. |
| author_sort | Luna, Celina Mercedes |
| collection | INTA Digital |
| description | 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 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. |
| format | Artículo |
| id | INTA7448 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Society for Experimental Biology |
| publisherStr | Society for Experimental Biology |
| record_format | dspace |
| spelling | INTA74482020-06-22T12:30:39Z Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat Luna, Celina Mercedes Pastori, Gabriela M. Driscoll, Simon Groten, Karin Bernard, Stephanie Foyer, Christine H. Trigo Sequía Catalasa Expresión Génica Peróxido de Hidrógeno Wheat Drought Catalase Gene Expression Hydrogen Peroxide 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 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. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: 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); Argentina Fil: Pastori, Gabriela M. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña Fil: Driscoll, Simon. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña Fil: Groten, Karin. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña Fil: Bernard, Stephanie. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña Fil: Foyer, Christine H. Rothamsted Research. Crop Performance and Improvement Division; Gran Bretaña 2020-06-22T12:26:48Z 2020-06-22T12:26:48Z 2005-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7448 https://academic.oup.com/jxb/article/56/411/417/429881 0022-0957 1460-2431 https://doi.org/10.1093/jxb/eri039 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Society for Experimental Biology Journal of Experimental Botany 56 (411) : 417–423. (January 2005) |
| spellingShingle | Trigo Sequía Catalasa Expresión Génica Peróxido de Hidrógeno Wheat Drought Catalase Gene Expression Hydrogen Peroxide Luna, Celina Mercedes Pastori, Gabriela M. Driscoll, Simon Groten, Karin Bernard, Stephanie Foyer, Christine H. Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title | Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title_full | Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title_fullStr | Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title_full_unstemmed | Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title_short | Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat |
| title_sort | drought controls on h2o2 accumulation catalase cat activity and cat gene expression in wheat |
| topic | Trigo Sequía Catalasa Expresión Génica Peróxido de Hidrógeno Wheat Drought Catalase Gene Expression Hydrogen Peroxide |
| url | http://hdl.handle.net/20.500.12123/7448 https://academic.oup.com/jxb/article/56/411/417/429881 https://doi.org/10.1093/jxb/eri039 |
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