Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress
Tall wheatgrass [Elymus elongatus subsp. ponticus (Podp.) Melderis] is a C3 grass native from dry or saline habitats in SE Europe. The aim of this study was to better understand response mechanisms of populations from different origins to salinity and to provide new tools to select germoplasm with h...
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| Format: | Artículo |
| Language: | Inglés |
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Wiley
2020
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| Online Access: | http://hdl.handle.net/20.500.12123/8395 https://onlinelibrary.wiley.com/doi/abs/10.1111/jac.12461 https://doi.org/10.1111/jac.12461 |
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| author | Borrajo, Celina Ines Sánchez‐Moreiras, Adela M. Reigosa, Manuel J. |
| author_browse | Borrajo, Celina Ines Reigosa, Manuel J. Sánchez‐Moreiras, Adela M. |
| author_facet | Borrajo, Celina Ines Sánchez‐Moreiras, Adela M. Reigosa, Manuel J. |
| author_sort | Borrajo, Celina Ines |
| collection | INTA Digital |
| description | Tall wheatgrass [Elymus elongatus subsp. ponticus (Podp.) Melderis] is a C3 grass native from dry or saline habitats in SE Europe. The aim of this study was to better understand response mechanisms of populations from different origins to salinity and to provide new tools to select germoplasm with high salinity tolerance. Four populations (P3‐P4‐P5‐P9) were irrigated with five solutions of increasing salinity (Salt: 0–0.1–0.2–0.3–0.4 M NaCl) and evaluated in pots in a greenhouse. Two experiments were carried out, a short 40‐day long experiment with vegetative plants, and a longer 85‐day long one with plants that underwent vegetative‐reproductive stage. No evidence was found of an interaction between population and salt. Morpho‐physiological, biochemicals, isotopic and productive variables were differently affected by increasing salinity and were also different among populations. Proline, Na+ and Cl− consistently appeared to function as osmotic agents. P5 showed the highest biomass in the 85‐day experiment and had the highest leaf length, tiller density, water use efficiency and δ13C isotope; and the lowest Cl− concentration and evapotranspiration rate. However, P5 showed the lowest biomass in the 40‐day experiment, suggesting that duration of the stress is an important aspect to consider when selecting germoplasm for tolerance to salinity. Differences among populations in growth strategies and physiological mechanisms could be related to their origin environment. |
| format | Artículo |
| id | INTA8395 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA83952020-12-11T13:37:02Z Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress Borrajo, Celina Ines Sánchez‐Moreiras, Adela M. Reigosa, Manuel J. Elymus elongatus Gramineas Estrés Osmótico Morfogénesis Germoplasma Grasses Osmotic Stress Morphogenesis Germplasm Agropiro Alargado Estrés Salino Tall wheatgrass [Elymus elongatus subsp. ponticus (Podp.) Melderis] is a C3 grass native from dry or saline habitats in SE Europe. The aim of this study was to better understand response mechanisms of populations from different origins to salinity and to provide new tools to select germoplasm with high salinity tolerance. Four populations (P3‐P4‐P5‐P9) were irrigated with five solutions of increasing salinity (Salt: 0–0.1–0.2–0.3–0.4 M NaCl) and evaluated in pots in a greenhouse. Two experiments were carried out, a short 40‐day long experiment with vegetative plants, and a longer 85‐day long one with plants that underwent vegetative‐reproductive stage. No evidence was found of an interaction between population and salt. Morpho‐physiological, biochemicals, isotopic and productive variables were differently affected by increasing salinity and were also different among populations. Proline, Na+ and Cl− consistently appeared to function as osmotic agents. P5 showed the highest biomass in the 85‐day experiment and had the highest leaf length, tiller density, water use efficiency and δ13C isotope; and the lowest Cl− concentration and evapotranspiration rate. However, P5 showed the lowest biomass in the 40‐day experiment, suggesting that duration of the stress is an important aspect to consider when selecting germoplasm for tolerance to salinity. Differences among populations in growth strategies and physiological mechanisms could be related to their origin environment. EEA Cuenca del Salado Fil: Borrajo, Celina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina. Universidad de Vigo. Facultad de Biología; España Fil: Sánchez‐Moreiras, Adela M. Universidad de Vigo. Facultad de Biología; España Fil: Reigosa, Manuel J. Universidad de Vigo. Facultad de Biología; España 2020-12-11T13:33:08Z 2020-12-11T13:33:08Z 2020-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/8395 https://onlinelibrary.wiley.com/doi/abs/10.1111/jac.12461 1439-037X https://doi.org/10.1111/jac.12461 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Journal of Agronomy and Crop Science (First published: 05 December 2020) |
| spellingShingle | Elymus elongatus Gramineas Estrés Osmótico Morfogénesis Germoplasma Grasses Osmotic Stress Morphogenesis Germplasm Agropiro Alargado Estrés Salino Borrajo, Celina Ines Sánchez‐Moreiras, Adela M. Reigosa, Manuel J. Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title | Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title_full | Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title_fullStr | Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title_full_unstemmed | Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title_short | Morpho‐physiological, biochemical and isotopic response of tall wheatgrass populations to salt stress |
| title_sort | morpho physiological biochemical and isotopic response of tall wheatgrass populations to salt stress |
| topic | Elymus elongatus Gramineas Estrés Osmótico Morfogénesis Germoplasma Grasses Osmotic Stress Morphogenesis Germplasm Agropiro Alargado Estrés Salino |
| url | http://hdl.handle.net/20.500.12123/8395 https://onlinelibrary.wiley.com/doi/abs/10.1111/jac.12461 https://doi.org/10.1111/jac.12461 |
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