Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions
The relationship between absicisic acid (ABA) and gibberellin (GA) changes in developing fruitlets from both Clementina (Citrus clementina, Hort ex Tan) and Okitsu (Citrus unshiu, (Mak) Marc.) trees subjected to changing water conditions was investigated. The treatments consisted of a series of wate...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/5549 |
| _version_ | 1855491943566409728 |
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| author | Mahouachi, Jalel Gómez-Cadenas, Aurelio Primo-Millo, Eduardo Talón, Manuel |
| author_browse | Gómez-Cadenas, Aurelio Mahouachi, Jalel Primo-Millo, Eduardo Talón, Manuel |
| author_facet | Mahouachi, Jalel Gómez-Cadenas, Aurelio Primo-Millo, Eduardo Talón, Manuel |
| author_sort | Mahouachi, Jalel |
| collection | ReDivia |
| description | The relationship between absicisic acid (ABA) and gibberellin (GA) changes in developing fruitlets from both Clementina (Citrus clementina, Hort ex Tan) and Okitsu (Citrus unshiu, (Mak) Marc.) trees subjected to changing water conditions was investigated. The treatments consisted of a series of water stress, rainfall, and re-irrigation periods. To confirm the effectiveness of the imposed water changes, leaf water potential and soil moisture were measured. The data indicated that there were antagonistic changes between ABA and GA(20), because in both species ABA increased and GA(20) decreased during water stress, whereas re-hydration via either rainfall or irrigation reduced ABA but increased GA20. In addition, the data indicated that during water stress GA1 also decreased, whereas GA(8) did not change. After re-hydration, however, levels of GA(20) products, in general were rather dependent upon the hormonal levels induced in the previous water status. In conclusion, the results showed the occurrence of antagonistic changes between the levels of ABA and GA(20) in developing citrus fruitlets subjected to changing water conditions. The data might suggest that gibberellin 20-oxidase is regulated by water stress in citrus fruits. |
| format | Artículo |
| id | ReDivia5549 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia55492025-04-25T14:43:16Z Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions Mahouachi, Jalel Gómez-Cadenas, Aurelio Primo-Millo, Eduardo Talón, Manuel The relationship between absicisic acid (ABA) and gibberellin (GA) changes in developing fruitlets from both Clementina (Citrus clementina, Hort ex Tan) and Okitsu (Citrus unshiu, (Mak) Marc.) trees subjected to changing water conditions was investigated. The treatments consisted of a series of water stress, rainfall, and re-irrigation periods. To confirm the effectiveness of the imposed water changes, leaf water potential and soil moisture were measured. The data indicated that there were antagonistic changes between ABA and GA(20), because in both species ABA increased and GA(20) decreased during water stress, whereas re-hydration via either rainfall or irrigation reduced ABA but increased GA20. In addition, the data indicated that during water stress GA1 also decreased, whereas GA(8) did not change. After re-hydration, however, levels of GA(20) products, in general were rather dependent upon the hormonal levels induced in the previous water status. In conclusion, the results showed the occurrence of antagonistic changes between the levels of ABA and GA(20) in developing citrus fruitlets subjected to changing water conditions. The data might suggest that gibberellin 20-oxidase is regulated by water stress in citrus fruits. 2017-06-01T10:12:33Z 2017-06-01T10:12:33Z 2005 SEP 2005 article Mahouachi, J., Gomez-Cadenas, A., Primo-Millo, E., Talón, M. (2005). Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions. Journal of plant growth regulation, 24(3), 179-187. 0721-7595 http://hdl.handle.net/20.500.11939/5549 10.1007/s00344-004-0001-y en openAccess Impreso |
| spellingShingle | Mahouachi, Jalel Gómez-Cadenas, Aurelio Primo-Millo, Eduardo Talón, Manuel Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title | Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title_full | Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title_fullStr | Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title_full_unstemmed | Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title_short | Antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| title_sort | antagonistic changes between abscisic acid and gibberellins in citrus fruits subjected to a series of different water conditions |
| url | http://hdl.handle.net/20.500.11939/5549 |
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