Plasticity in sunflower leaf and cell growth under high salinity
A group of sunflower lines that exhibit a range of leaf Na+ concentrations under high salinity was used to explore whether the responses to the osmotic and ionic components of salinity can be distinguished in leaf expansion kinetics analysis. It was expected that at the initial stages of the salt tr...
| Main Authors: | , , , , , |
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Wiley
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/3727 https://onlinelibrary.wiley.com/doi/abs/10.1111/plb.12205 https://doi.org/10.1111/plb.12205 |
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| author | Céccoli, Gabriel Bustos, Dolores Angela Ortega, Leandro Ismael Senn, Eugenia Vegetti, Abelardo Carlos Taleisnik, Edith |
| author_browse | Bustos, Dolores Angela Céccoli, Gabriel Ortega, Leandro Ismael Senn, Eugenia Taleisnik, Edith Vegetti, Abelardo Carlos |
| author_facet | Céccoli, Gabriel Bustos, Dolores Angela Ortega, Leandro Ismael Senn, Eugenia Vegetti, Abelardo Carlos Taleisnik, Edith |
| author_sort | Céccoli, Gabriel |
| collection | INTA Digital |
| description | A group of sunflower lines that exhibit a range of leaf Na+ concentrations under high salinity was used to explore whether the responses to the osmotic and ionic components of salinity can be distinguished in leaf expansion kinetics analysis. It was expected that at the initial stages of the salt treatment, leaf expansion kinetics changes would be dominated by responses to the osmotic component of salinity, and that later on, ion inclusion would impose further kinetics changes. It was also expected that differential leaf Na+ accumulation would be reflected in specific changes in cell division and expansion rates. Plants of four sunflower lines were gradually treated with a relatively high (130 mm NaCl) salt treatment. Leaf expansion kinetics curves were compared in leaves that were formed before, during and after the initiation of the salt treatment. Leaf areas were smaller in salt‐treated plants, but the analysis of growth curves did not reveal differences that could be attributed to differential Na+ accumulation, since similar changes in leaf expansion kinetics were observed in lines with different magnitudes of salt accumulation. Nevertheless, in a high leaf Na+‐including line, cell divisions were affected earlier, resulting in leaves with proportionally fewer cells than in a Na+‐excluding line. A distinct change in leaf epidermal pavement shape caused by salinity is reported for the first time. Mature pavement cells in leaves of control plants exhibited typical lobed, jigsaw‐puzzle shape, whereas in treated plants, they tended to retain closer‐to‐circular shapes and a lower number of lobes. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3727 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA37272018-10-29T13:13:39Z Plasticity in sunflower leaf and cell growth under high salinity Céccoli, Gabriel Bustos, Dolores Angela Ortega, Leandro Ismael Senn, Eugenia Vegetti, Abelardo Carlos Taleisnik, Edith Helianthus Annuus Salinidad Hojas Plasticidad Salinity Leaves Plasticity Girasol Crecimiento de la Hoja Sunflower Leaf Growth A group of sunflower lines that exhibit a range of leaf Na+ concentrations under high salinity was used to explore whether the responses to the osmotic and ionic components of salinity can be distinguished in leaf expansion kinetics analysis. It was expected that at the initial stages of the salt treatment, leaf expansion kinetics changes would be dominated by responses to the osmotic component of salinity, and that later on, ion inclusion would impose further kinetics changes. It was also expected that differential leaf Na+ accumulation would be reflected in specific changes in cell division and expansion rates. Plants of four sunflower lines were gradually treated with a relatively high (130 mm NaCl) salt treatment. Leaf expansion kinetics curves were compared in leaves that were formed before, during and after the initiation of the salt treatment. Leaf areas were smaller in salt‐treated plants, but the analysis of growth curves did not reveal differences that could be attributed to differential Na+ accumulation, since similar changes in leaf expansion kinetics were observed in lines with different magnitudes of salt accumulation. Nevertheless, in a high leaf Na+‐including line, cell divisions were affected earlier, resulting in leaves with proportionally fewer cells than in a Na+‐excluding line. A distinct change in leaf epidermal pavement shape caused by salinity is reported for the first time. Mature pavement cells in leaves of control plants exhibited typical lobed, jigsaw‐puzzle shape, whereas in treated plants, they tended to retain closer‐to‐circular shapes and a lower number of lobes. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Céccoli, Gabriel. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina Fil: Bustos, Dolores Angela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Ortega, Leandro Ismael. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Senn, María Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina Fil: Vegetti, Abelardo Carlos. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; 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 2018-10-29T13:07:07Z 2018-10-29T13:07:07Z 2015-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3727 https://onlinelibrary.wiley.com/doi/abs/10.1111/plb.12205 1435-8603 https://doi.org/10.1111/plb.12205 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Plant biology 17 (1) : 41-51. (January 2015) |
| spellingShingle | Helianthus Annuus Salinidad Hojas Plasticidad Salinity Leaves Plasticity Girasol Crecimiento de la Hoja Sunflower Leaf Growth Céccoli, Gabriel Bustos, Dolores Angela Ortega, Leandro Ismael Senn, Eugenia Vegetti, Abelardo Carlos Taleisnik, Edith Plasticity in sunflower leaf and cell growth under high salinity |
| title | Plasticity in sunflower leaf and cell growth under high salinity |
| title_full | Plasticity in sunflower leaf and cell growth under high salinity |
| title_fullStr | Plasticity in sunflower leaf and cell growth under high salinity |
| title_full_unstemmed | Plasticity in sunflower leaf and cell growth under high salinity |
| title_short | Plasticity in sunflower leaf and cell growth under high salinity |
| title_sort | plasticity in sunflower leaf and cell growth under high salinity |
| topic | Helianthus Annuus Salinidad Hojas Plasticidad Salinity Leaves Plasticity Girasol Crecimiento de la Hoja Sunflower Leaf Growth |
| url | http://hdl.handle.net/20.500.12123/3727 https://onlinelibrary.wiley.com/doi/abs/10.1111/plb.12205 https://doi.org/10.1111/plb.12205 |
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