Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes
Drought and heat stress are two critical threats to crop growth and sustainable agriculture worldwide. In the last decade, many studies focused on the response of crops to a single stress, nevertheless studying the response of plants to a combination stress may be critical to our understanding of st...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2018
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| Online Access: | https://www.sciencedirect.com/science/article/pii/S025462991831216X http://hdl.handle.net/20.500.12123/3705 https://doi.org/10.1016/j.sajb.2018.08.026 |
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| author | Tommasino, Exequiel Arturo Lopez Colomba, Eliana Carrizo, Iliana Magali Grunberg, Karina Quiroga, Mariana Paola Carloni, Edgardo José Griffa, Sabrina Mariana Ribotta, Andrea Noemi Luna, Celina Mercedes |
| author_browse | Carloni, Edgardo José Carrizo, Iliana Magali Griffa, Sabrina Mariana Grunberg, Karina Lopez Colomba, Eliana Luna, Celina Mercedes Quiroga, Mariana Paola Ribotta, Andrea Noemi Tommasino, Exequiel Arturo |
| author_facet | Tommasino, Exequiel Arturo Lopez Colomba, Eliana Carrizo, Iliana Magali Grunberg, Karina Quiroga, Mariana Paola Carloni, Edgardo José Griffa, Sabrina Mariana Ribotta, Andrea Noemi Luna, Celina Mercedes |
| author_sort | Tommasino, Exequiel Arturo |
| collection | INTA Digital |
| description | Drought and heat stress are two critical threats to crop growth and sustainable agriculture worldwide. In the last decade, many studies focused on the response of crops to a single stress, nevertheless studying the response of plants to a combination stress may be critical to our understanding of stress tolerance in plants and the development of tolerant genotypes. Buffel grass (Cenchrus ciliaris L.) is a warm-season grass known in arid and semiarid regions for its tolerance to heat and drought stress, productivity, and forage quality. However, in our previous works, several accessions have exhibited different responses to abiotic stresses. Therefore, the objective of this work was to evaluate the effects of combination of drought and heat stresses on biochemical parameters and plant growth and to compare the impacts of the stresses separately and when combined. We found that sensitive genotype exhibited higher lipid peroxidation content, lower total reducing power values and reduced catalase and superoxide dismutase activities than tolerant under drought or heat stress or combination stress. In this study, heat stress had a predominant effect on buffel grass genotypes over drought stress, which explained why simultaneous application of heat and drought revealed similar biochemical and growth responses to the heat stress. Antioxidant metabolism seems to be critical for tolerate abiotic stress. This study may provide useful information to perform a rapid and low-cost characterization in new buffel grass germplasm and to identify genotypes with better growth performance under drought and heat conditions. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3705 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA37052018-10-25T13:32:05Z Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes Tommasino, Exequiel Arturo Lopez Colomba, Eliana Carrizo, Iliana Magali Grunberg, Karina Quiroga, Mariana Paola Carloni, Edgardo José Griffa, Sabrina Mariana Ribotta, Andrea Noemi Luna, Celina Mercedes Cenchrus Ciliaris Sequía Calor Genotipos Estrés Térmico Estrés de Sequia Antioxidantes Drought Heat Genotypes Heat Stress Drought Stress Antioxidants Pasto buffel Buffel Grass Drought and heat stress are two critical threats to crop growth and sustainable agriculture worldwide. In the last decade, many studies focused on the response of crops to a single stress, nevertheless studying the response of plants to a combination stress may be critical to our understanding of stress tolerance in plants and the development of tolerant genotypes. Buffel grass (Cenchrus ciliaris L.) is a warm-season grass known in arid and semiarid regions for its tolerance to heat and drought stress, productivity, and forage quality. However, in our previous works, several accessions have exhibited different responses to abiotic stresses. Therefore, the objective of this work was to evaluate the effects of combination of drought and heat stresses on biochemical parameters and plant growth and to compare the impacts of the stresses separately and when combined. We found that sensitive genotype exhibited higher lipid peroxidation content, lower total reducing power values and reduced catalase and superoxide dismutase activities than tolerant under drought or heat stress or combination stress. In this study, heat stress had a predominant effect on buffel grass genotypes over drought stress, which explained why simultaneous application of heat and drought revealed similar biochemical and growth responses to the heat stress. Antioxidant metabolism seems to be critical for tolerate abiotic stress. This study may provide useful information to perform a rapid and low-cost characterization in new buffel grass germplasm and to identify genotypes with better growth performance under drought and heat conditions. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Tommasino, Exequiel Arturo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Lopez Colomba, Eliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Carrizo, Iliana Magali. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Grunberg, Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Nacional Investigaciones Científicas y Técnicas; Argentina Fil: Quiroga, Mariana Paola. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Carloni, Edgardo José. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Griffa, Sabrina Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Ribotta, Andrea Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Luna, Celina Mercedes. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Nacional Investigaciones Científicas y Técnicas; Argentina 2018-10-25T13:30:42Z 2018-10-25T13:30:42Z 2018-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S025462991831216X http://hdl.handle.net/20.500.12123/3705 0254-6299 https://doi.org/10.1016/j.sajb.2018.08.026 eng info:eu-repo/semantics/restrictedAccess application/pdf South African Journal of Botany 119 : 104-111 (November 2018) |
| spellingShingle | Cenchrus Ciliaris Sequía Calor Genotipos Estrés Térmico Estrés de Sequia Antioxidantes Drought Heat Genotypes Heat Stress Drought Stress Antioxidants Pasto buffel Buffel Grass Tommasino, Exequiel Arturo Lopez Colomba, Eliana Carrizo, Iliana Magali Grunberg, Karina Quiroga, Mariana Paola Carloni, Edgardo José Griffa, Sabrina Mariana Ribotta, Andrea Noemi Luna, Celina Mercedes Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title | Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title_full | Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title_fullStr | Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title_full_unstemmed | Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title_short | Individual and combined effects of drought and heat on antioxidant parameters and growth performance in Buffel grass (Cenchrus ciliaris L.) genotypes |
| title_sort | individual and combined effects of drought and heat on antioxidant parameters and growth performance in buffel grass cenchrus ciliaris l genotypes |
| topic | Cenchrus Ciliaris Sequía Calor Genotipos Estrés Térmico Estrés de Sequia Antioxidantes Drought Heat Genotypes Heat Stress Drought Stress Antioxidants Pasto buffel Buffel Grass |
| url | https://www.sciencedirect.com/science/article/pii/S025462991831216X http://hdl.handle.net/20.500.12123/3705 https://doi.org/10.1016/j.sajb.2018.08.026 |
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