Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina.
Net photosynthetic rate (A) and stomatal conductance (gs) from leaves of Berberis buxifolia and Berberis heterophylla saplings were measured under different conditions of radiation and water availability and for leaves of different ages. Comparative studies of basic physiological performance would g...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/12612 https://www.sciencedirect.com/science/article/pii/S0140196311001868 https://doi.org/10.1016/j.jaridenv.2011.06.003 |
| _version_ | 1855484993958051840 |
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| author | Peri, Pablo Luis Arena, Miriam Elizabeth Martínez Pastur, Guillermo José Lencinas, María Vanessa |
| author_browse | Arena, Miriam Elizabeth Lencinas, María Vanessa Martínez Pastur, Guillermo José Peri, Pablo Luis |
| author_facet | Peri, Pablo Luis Arena, Miriam Elizabeth Martínez Pastur, Guillermo José Lencinas, María Vanessa |
| author_sort | Peri, Pablo Luis |
| collection | INTA Digital |
| description | Net photosynthetic rate (A) and stomatal conductance (gs) from leaves of Berberis buxifolia and Berberis heterophylla saplings were measured under different conditions of radiation and water availability and for leaves of different ages. Comparative studies of basic physiological performance would give insight how these shrubs survive and grow under this austral extreme ecosystem. B. buxifolia had higher A values than B. heterophylla for all light intensities measured. Values of gs for both Berberis species also declined as light intensity decreased. There was a negative relationship between A and water stress expressed as pre-dawn leaf water potential (jlp) where the reduction in gs was the main factor that reduced A in both species. Also, A and gs of Berberis plants increased rapidly during the first days after leaf unfolding, reached a maximum value when the leaf was completely expanded, and then declined.
These results could be used to estimate the responses of saplings to environmental conditions under the dynamic of natural stands in this austral extreme ecosystem and for restoration plans. |
| format | Artículo |
| id | INTA12612 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA126122022-08-17T13:36:16Z Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. Peri, Pablo Luis Arena, Miriam Elizabeth Martínez Pastur, Guillermo José Lencinas, María Vanessa Ecophysiology Photosynthetically Active Radiation Shade Nitrogen Use Efficiency Nutrient Use Efficiency Leaf Water Potential Stomatal Conductance Berberidaceae Steppes Ecofisiología Radiación Fotosintéticamente Activa Sombra Nitrógeno Uso Eficiente Eficiencia en el Uso de los Nutrientes Potencial Hídrico de la Hoja Conductancia Estomática Estepas Tierra del Fuego (Argentina) Santa Cruz (Argentina) Berberis heterophylla Berberis buxifolia Región Patagónica Net photosynthetic rate (A) and stomatal conductance (gs) from leaves of Berberis buxifolia and Berberis heterophylla saplings were measured under different conditions of radiation and water availability and for leaves of different ages. Comparative studies of basic physiological performance would give insight how these shrubs survive and grow under this austral extreme ecosystem. B. buxifolia had higher A values than B. heterophylla for all light intensities measured. Values of gs for both Berberis species also declined as light intensity decreased. There was a negative relationship between A and water stress expressed as pre-dawn leaf water potential (jlp) where the reduction in gs was the main factor that reduced A in both species. Also, A and gs of Berberis plants increased rapidly during the first days after leaf unfolding, reached a maximum value when the leaf was completely expanded, and then declined. These results could be used to estimate the responses of saplings to environmental conditions under the dynamic of natural stands in this austral extreme ecosystem and for restoration plans. EEA Santa Cruz Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Arena, Miriam Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. 2022-08-17T13:28:35Z 2022-08-17T13:28:35Z 2011-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12612 https://www.sciencedirect.com/science/article/pii/S0140196311001868 Peri P.L.; Arena M.; Martínez Pastur G.; Lencinas M.V. (2011) Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. Journal of Arid Environments 75: 1218-1222. 0140-1963 https://doi.org/10.1016/j.jaridenv.2011.06.003 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Journal of Arid Environments 75 (11) : 1218-1222. (November 2011) |
| spellingShingle | Ecophysiology Photosynthetically Active Radiation Shade Nitrogen Use Efficiency Nutrient Use Efficiency Leaf Water Potential Stomatal Conductance Berberidaceae Steppes Ecofisiología Radiación Fotosintéticamente Activa Sombra Nitrógeno Uso Eficiente Eficiencia en el Uso de los Nutrientes Potencial Hídrico de la Hoja Conductancia Estomática Estepas Tierra del Fuego (Argentina) Santa Cruz (Argentina) Berberis heterophylla Berberis buxifolia Región Patagónica Peri, Pablo Luis Arena, Miriam Elizabeth Martínez Pastur, Guillermo José Lencinas, María Vanessa Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title | Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title_full | Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title_fullStr | Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title_full_unstemmed | Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title_short | Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. |
| title_sort | photosynthetic response to different light intensities water status and leaf age of two berberis species berberidaceae of patagonia steppe argentina |
| topic | Ecophysiology Photosynthetically Active Radiation Shade Nitrogen Use Efficiency Nutrient Use Efficiency Leaf Water Potential Stomatal Conductance Berberidaceae Steppes Ecofisiología Radiación Fotosintéticamente Activa Sombra Nitrógeno Uso Eficiente Eficiencia en el Uso de los Nutrientes Potencial Hídrico de la Hoja Conductancia Estomática Estepas Tierra del Fuego (Argentina) Santa Cruz (Argentina) Berberis heterophylla Berberis buxifolia Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/12612 https://www.sciencedirect.com/science/article/pii/S0140196311001868 https://doi.org/10.1016/j.jaridenv.2011.06.003 |
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