Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants
This work assessed intracultivar variability for salt tolerance within Panicum coloratum cv. Klein, explored some physiological parameters potentially associated with it and evaluated the contribution of cell division and expansion to the decreased leaf length observed under salinity. Individual pla...
| Autores principales: | , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley; British Grassland Society; European Grassland Federation
2019
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/4694 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12206 https://doi.org/10.1111/gfs.12206 |
| _version_ | 1855035367596490752 |
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| author | Pittaro, Gabriela Caceres, Leandro Bruno, Cecilia Inés Tomas, Maria Andrea Bustos, Dolores Angela Monteoliva, Mariela Ines Ortega, Leandro Ismael Taleisnik, Edith |
| author_browse | Bruno, Cecilia Inés Bustos, Dolores Angela Caceres, Leandro Monteoliva, Mariela Ines Ortega, Leandro Ismael Pittaro, Gabriela Taleisnik, Edith Tomas, Maria Andrea |
| author_facet | Pittaro, Gabriela Caceres, Leandro Bruno, Cecilia Inés Tomas, Maria Andrea Bustos, Dolores Angela Monteoliva, Mariela Ines Ortega, Leandro Ismael Taleisnik, Edith |
| author_sort | Pittaro, Gabriela |
| collection | INTA Digital |
| description | This work assessed intracultivar variability for salt tolerance within Panicum coloratum cv. Klein, explored some physiological parameters potentially associated with it and evaluated the contribution of cell division and expansion to the decreased leaf length observed under salinity. Individual plants that had survived severe stress environments in an established pasture were collected and clonal families were obtained by vegetative propagation. These were evaluated in a greenhouse, in pots with an inert substrate irrigated with nutrient solution containing 0, 200 or 400 mm NaCl. Salt tolerance was assessed from growth variables expressed as a percentage of non‐salinized controls. Changes induced by salinity in carbon fixation, soluble sugars and compatible solutes were also measured. The selected plants showed 33% higher salt tolerance than plants from the same cultivar obtained from seeds, and variability for salt tolerance was detected within the group, suggesting these plants could be valuable germplasm for breeding programmes for saline areas. All selected plants accumulated low leaf blade Na concentrations (< 0·1 mm g−1 dry weight on average), and K concentrations tended to remain high under salinity. A kinematic analysis indicated a reduction in the number of cells in the division‐only zone was the main cause of shorter leaves under stress. Although plants showed some differences in all these traits, they were not related to salt‐tolerance variability within this group of stress‐tolerant plants. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4694 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley; British Grassland Society; European Grassland Federation |
| publisherStr | Wiley; British Grassland Society; European Grassland Federation |
| record_format | dspace |
| spelling | INTA46942019-06-05T18:28:16Z Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants Pittaro, Gabriela Caceres, Leandro Bruno, Cecilia Inés Tomas, Maria Andrea Bustos, Dolores Angela Monteoliva, Mariela Ines Ortega, Leandro Ismael Taleisnik, Edith Panicum Coloratum Tolerancia a la Sal División Celular Plantas Perennes Estres Salt Tolerance Cell Division Perennials Stress This work assessed intracultivar variability for salt tolerance within Panicum coloratum cv. Klein, explored some physiological parameters potentially associated with it and evaluated the contribution of cell division and expansion to the decreased leaf length observed under salinity. Individual plants that had survived severe stress environments in an established pasture were collected and clonal families were obtained by vegetative propagation. These were evaluated in a greenhouse, in pots with an inert substrate irrigated with nutrient solution containing 0, 200 or 400 mm NaCl. Salt tolerance was assessed from growth variables expressed as a percentage of non‐salinized controls. Changes induced by salinity in carbon fixation, soluble sugars and compatible solutes were also measured. The selected plants showed 33% higher salt tolerance than plants from the same cultivar obtained from seeds, and variability for salt tolerance was detected within the group, suggesting these plants could be valuable germplasm for breeding programmes for saline areas. All selected plants accumulated low leaf blade Na concentrations (< 0·1 mm g−1 dry weight on average), and K concentrations tended to remain high under salinity. A kinematic analysis indicated a reduction in the number of cells in the division‐only zone was the main cause of shorter leaves under stress. Although plants showed some differences in all these traits, they were not related to salt‐tolerance variability within this group of stress‐tolerant plants. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Pittaro, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Caceres, Leandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; Argentina Fil: Bruno, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Bustos, Dolores Angela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Monteoliva, Mariela Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; Argentina Fil: Ortega, Leandro Ismael. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo de Investigaciones Científicas y Técnicas; Argentina 2019-03-21T15:29:56Z 2019-03-21T15:29:56Z 2016-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/4694 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12206 1365-2494 (Online) https://doi.org/10.1111/gfs.12206 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley; British Grassland Society; European Grassland Federation Grass and forage science 71 (4) : 683-698. (December 2016) |
| spellingShingle | Panicum Coloratum Tolerancia a la Sal División Celular Plantas Perennes Estres Salt Tolerance Cell Division Perennials Stress Pittaro, Gabriela Caceres, Leandro Bruno, Cecilia Inés Tomas, Maria Andrea Bustos, Dolores Angela Monteoliva, Mariela Ines Ortega, Leandro Ismael Taleisnik, Edith Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title | Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title_full | Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title_fullStr | Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title_full_unstemmed | Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title_short | Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants |
| title_sort | salt tolerance variability among stress selected panicum coloratum cv klein plants |
| topic | Panicum Coloratum Tolerancia a la Sal División Celular Plantas Perennes Estres Salt Tolerance Cell Division Perennials Stress |
| url | http://hdl.handle.net/20.500.12123/4694 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12206 https://doi.org/10.1111/gfs.12206 |
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