Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants
This paper describes the physiological effects of abscisic acid (ABA) and 100 mM NaCl on citrus plants. Water potential, leaf abscission, ethylene production, photosynthetic rate, stomatal conductance, and chloride accumulation in roots and leaves were measured in plants of Salustiana scion [Citrus...
| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/5294 |
| _version_ | 1855032256012222464 |
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| author | Gómez-Cadenas, Aurelio Arbona, Vicent Jaques, Josep A. Primo-Millo, Eduardo Talón, Manuel |
| author_browse | Arbona, Vicent Gómez-Cadenas, Aurelio Jaques, Josep A. Primo-Millo, Eduardo Talón, Manuel |
| author_facet | Gómez-Cadenas, Aurelio Arbona, Vicent Jaques, Josep A. Primo-Millo, Eduardo Talón, Manuel |
| author_sort | Gómez-Cadenas, Aurelio |
| collection | ReDivia |
| description | This paper describes the physiological effects of abscisic acid (ABA) and 100 mM NaCl on citrus plants. Water potential, leaf abscission, ethylene production, photosynthetic rate, stomatal conductance, and chloride accumulation in roots and leaves were measured in plants of Salustiana scion [Citrus sinensis (L) Osbeck] grafted onto Carrizo citrange (Citrus sinensis [L.] Osbeck x Poncirus trifoliata [L.] Raf) rootstock. Plants under salt stress accumulated high amounts of chloride, increased ethylene production, and induced leaf abscission. Stomatal conductance and photosynthetic rates rapidly dropped after salinization. The addition of 10 muM ABA to the nutrient solution 10 days before the exposure to salt stress reduced ethylene release and leaf abscission. These effects were probably due to a decrease in the accumulation of toxic Cl- ions in leaves. In non-salinized plants, ABA reduced stomatal conductance and CO2 assimilation, whereas in salinized plants the treatment slightly increased these two parameters. The results suggest a protective role for ABA in citrus under salinity. |
| format | article |
| id | ReDivia5294 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia52942025-04-25T14:41:56Z Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants Gómez-Cadenas, Aurelio Arbona, Vicent Jaques, Josep A. Primo-Millo, Eduardo Talón, Manuel This paper describes the physiological effects of abscisic acid (ABA) and 100 mM NaCl on citrus plants. Water potential, leaf abscission, ethylene production, photosynthetic rate, stomatal conductance, and chloride accumulation in roots and leaves were measured in plants of Salustiana scion [Citrus sinensis (L) Osbeck] grafted onto Carrizo citrange (Citrus sinensis [L.] Osbeck x Poncirus trifoliata [L.] Raf) rootstock. Plants under salt stress accumulated high amounts of chloride, increased ethylene production, and induced leaf abscission. Stomatal conductance and photosynthetic rates rapidly dropped after salinization. The addition of 10 muM ABA to the nutrient solution 10 days before the exposure to salt stress reduced ethylene release and leaf abscission. These effects were probably due to a decrease in the accumulation of toxic Cl- ions in leaves. In non-salinized plants, ABA reduced stomatal conductance and CO2 assimilation, whereas in salinized plants the treatment slightly increased these two parameters. The results suggest a protective role for ABA in citrus under salinity. 2017-06-01T10:12:05Z 2017-06-01T10:12:05Z 2002 SEP 2002 article Gomez-Cadenas, A., Arbona, V., Jacas, J., Primo-Millo, E., Talón, M. (2002). Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants. Journal of plant growth regulation, 21(3), 234-240. 0721-7595 http://hdl.handle.net/20.500.11939/5294 10.1007/s00344-002-0013-4 en openAccess Impreso |
| spellingShingle | Gómez-Cadenas, Aurelio Arbona, Vicent Jaques, Josep A. Primo-Millo, Eduardo Talón, Manuel Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title | Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title_full | Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title_fullStr | Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title_full_unstemmed | Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title_short | Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| title_sort | abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants |
| url | http://hdl.handle.net/20.500.11939/5294 |
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