Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants
Sunflower (Helianthus annuus L.) has been rated as moderately salt‐resistant, and variability for salt resistance has been detected within this crop. However, variability in salt‐resistance mechanisms has not been assessed. Osmotic tolerance, the relation of salt resistance with whole‐plant Na+ and...
| Autores principales: | , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/7459 https://onlinelibrary.wiley.com/doi/10.1002/jpln.201200303 https://doi.org/10.1002/jpln.201200303 |
| _version_ | 1855035862633414656 |
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| author | Ceccoli, Gabriel Senn, Eugenia Bustos, Dolores Angela Ortega, Leandro Ismael Córdoba, Alicia R. Vegetti, Abelardo Carlos Taleisnik, Edith |
| author_browse | Bustos, Dolores Angela Ceccoli, Gabriel Córdoba, Alicia R. Ortega, Leandro Ismael Senn, Eugenia Taleisnik, Edith Vegetti, Abelardo Carlos |
| author_facet | Ceccoli, Gabriel Senn, Eugenia Bustos, Dolores Angela Ortega, Leandro Ismael Córdoba, Alicia R. Vegetti, Abelardo Carlos Taleisnik, Edith |
| author_sort | Ceccoli, Gabriel |
| collection | INTA Digital |
| description | Sunflower (Helianthus annuus L.) has been rated as moderately salt‐resistant, and variability for salt resistance has been detected within this crop. However, variability in salt‐resistance mechanisms has not been assessed. Osmotic tolerance, the relation of salt resistance with whole‐plant Na+ and K+ distribution and tissue Na+ tolerance were investigated in several sunflower inbred lines. Plants were grown under controlled conditions, in pots with sand and perlite irrigated with salinized (NaCl, –0.65 MPa) nutrient solution. Osmotic tolerance was assessed from the initial effects of the salt treatment on plant elongation in eleven sunflower lines. Long‐term salinity responses were evaluated in four of those lines, by assessing whole‐plant growth. A principal components analysis (PCA) was run on relative‐to‐control growth data, and this information was used to establish a relative resistance ranking, which indicated lines HAR2 > HAR1 > HA64 > HAR5. Osmotic tolerance was observed in HA64 and HAR2. The lines showed different degrees of Na+ accumulation, it was very low in some of them, but relative salt resistance was not associated to this trait. Tissue Na+ tolerance was deduced by comparing the percentage of dead leaves as a function of leaf blade Na+ accumulation, and it was higher in HAR1 than in the rest. These results indicate that variability for salt‐resistance mechanisms exists in sunflower. Osmotic tolerance and tissue Na+ tolerance were detected in different lines, highlighting that such variability may be exploited for increasing salt resistance in this crop. |
| format | info:ar-repo/semantics/artículo |
| id | INTA7459 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA74592020-06-23T14:23:32Z Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants Ceccoli, Gabriel Senn, Eugenia Bustos, Dolores Angela Ortega, Leandro Ismael Córdoba, Alicia R. Vegetti, Abelardo Carlos Taleisnik, Edith Helianthus annuus Variación Genética Tolerancia a la Sal Estrés Osmótico Genetic Variation Salt Tolerance Osmotic Stress Girasol Estrés Salino Sunflower Sunflower (Helianthus annuus L.) has been rated as moderately salt‐resistant, and variability for salt resistance has been detected within this crop. However, variability in salt‐resistance mechanisms has not been assessed. Osmotic tolerance, the relation of salt resistance with whole‐plant Na+ and K+ distribution and tissue Na+ tolerance were investigated in several sunflower inbred lines. Plants were grown under controlled conditions, in pots with sand and perlite irrigated with salinized (NaCl, –0.65 MPa) nutrient solution. Osmotic tolerance was assessed from the initial effects of the salt treatment on plant elongation in eleven sunflower lines. Long‐term salinity responses were evaluated in four of those lines, by assessing whole‐plant growth. A principal components analysis (PCA) was run on relative‐to‐control growth data, and this information was used to establish a relative resistance ranking, which indicated lines HAR2 > HAR1 > HA64 > HAR5. Osmotic tolerance was observed in HA64 and HAR2. The lines showed different degrees of Na+ accumulation, it was very low in some of them, but relative salt resistance was not associated to this trait. Tissue Na+ tolerance was deduced by comparing the percentage of dead leaves as a function of leaf blade Na+ accumulation, and it was higher in HAR1 than in the rest. These results indicate that variability for salt‐resistance mechanisms exists in sunflower. Osmotic tolerance and tissue Na+ tolerance were detected in different lines, highlighting that such variability may be exploited for increasing salt resistance in this crop. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Ceccoli, Gabriel. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Senn, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales(ex IFFIVE); 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 (ex IFFIVE); Argentina Fil: Córdoba, Alicia R. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales (ex IFFIVE); Argentina Fil: Vegetti, Abelardo Carlos. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Taleisnik, Edith. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales (ex IFFIVE); Argentina 2020-06-23T14:17:46Z 2020-06-23T14:17:46Z 2012-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7459 https://onlinelibrary.wiley.com/doi/10.1002/jpln.201200303 1522-2624 https://doi.org/10.1002/jpln.201200303 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Journal of Plant Nutrition and Soil Science 175 (6) : 882-890 (December 2012) |
| spellingShingle | Helianthus annuus Variación Genética Tolerancia a la Sal Estrés Osmótico Genetic Variation Salt Tolerance Osmotic Stress Girasol Estrés Salino Sunflower Ceccoli, Gabriel Senn, Eugenia Bustos, Dolores Angela Ortega, Leandro Ismael Córdoba, Alicia R. Vegetti, Abelardo Carlos Taleisnik, Edith Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title | Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title_full | Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title_fullStr | Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title_full_unstemmed | Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title_short | Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants |
| title_sort | genetic variability for responses to short and long term salt stress in vegetative sunflower plants |
| topic | Helianthus annuus Variación Genética Tolerancia a la Sal Estrés Osmótico Genetic Variation Salt Tolerance Osmotic Stress Girasol Estrés Salino Sunflower |
| url | http://hdl.handle.net/20.500.12123/7459 https://onlinelibrary.wiley.com/doi/10.1002/jpln.201200303 https://doi.org/10.1002/jpln.201200303 |
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