Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence
Evidence has been presented in citrus suggesting that initiation of fruit growth is promoted by mediators of hormonal nature, such as gibberellins, that are able to respond to internal and external stimuli. In seeded citrus, pollination increases GA levels and reduces ovary abscission, whereas exoge...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | conferenceObject |
| Language: | Inglés |
| Published: |
2017
|
| Online Access: | http://hdl.handle.net/20.500.11939/4560 |
| _version_ | 1855032141323173888 |
|---|---|
| author | Talón, Manuel Tadeo, Francisco R. Ben-Cheikh, W. Gómez-Cadenas, Aurelio Mehouachi, J. Botella, J. P. Primo-Millo, Eduardo |
| author2 | Martinez, J. L. G. |
| author_browse | Ben-Cheikh, W. Botella, J. P. Gómez-Cadenas, Aurelio Martinez, J. L. G. Mehouachi, J. Primo-Millo, Eduardo Tadeo, Francisco R. Talón, Manuel |
| author_facet | Martinez, J. L. G. Talón, Manuel Tadeo, Francisco R. Ben-Cheikh, W. Gómez-Cadenas, Aurelio Mehouachi, J. Botella, J. P. Primo-Millo, Eduardo |
| author_sort | Talón, Manuel |
| collection | ReDivia |
| description | Evidence has been presented in citrus suggesting that initiation of fruit growth is promoted by mediators of hormonal nature, such as gibberellins, that are able to respond to internal and external stimuli. In seeded citrus, pollination increases GA levels and reduces ovary abscission, whereas exogenous GAs mimic the effects of pollination on fruit set of non-pollinated fruits. In seedless cultivars, a large number of observations indicate that gibberellins are one of the limiting and crucial factors regulating parthenocarpic fruit initiation. While cytokinins have also been involved in the improvement of fruit set, the role of auxins appear to be related to the control of fruit size and retardation of pre-harvest abscission. After hormone stimulation, fruit development is mostly supported by the disponibility of nutrients. It is also known that unfavorable environmental conditions, as well as a shortage of carbohydrates, activate synthesis of regulatory compounds involved in the processes of abscission, such as abscisic acid and ethylene. Abscission of developing fruits appears to be under hormonal regulation according to the sequence: ABA --> ACC --> ethylene --> fruit abscission. |
| format | conferenceObject |
| id | ReDivia4560 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia45602025-04-25T14:53:32Z Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence ACTA HORTICULTURAE Talón, Manuel Tadeo, Francisco R. Ben-Cheikh, W. Gómez-Cadenas, Aurelio Mehouachi, J. Botella, J. P. Primo-Millo, Eduardo Martinez, J. L. G. Guardiola, J. L. Evidence has been presented in citrus suggesting that initiation of fruit growth is promoted by mediators of hormonal nature, such as gibberellins, that are able to respond to internal and external stimuli. In seeded citrus, pollination increases GA levels and reduces ovary abscission, whereas exogenous GAs mimic the effects of pollination on fruit set of non-pollinated fruits. In seedless cultivars, a large number of observations indicate that gibberellins are one of the limiting and crucial factors regulating parthenocarpic fruit initiation. While cytokinins have also been involved in the improvement of fruit set, the role of auxins appear to be related to the control of fruit size and retardation of pre-harvest abscission. After hormone stimulation, fruit development is mostly supported by the disponibility of nutrients. It is also known that unfavorable environmental conditions, as well as a shortage of carbohydrates, activate synthesis of regulatory compounds involved in the processes of abscission, such as abscisic acid and ethylene. Abscission of developing fruits appears to be under hormonal regulation according to the sequence: ABA --> ACC --> ethylene --> fruit abscission. 2017-06-01T10:10:25Z 2017-06-01T10:10:25Z 1997 1997 conferenceObject Talón, M., Tadeo, F.R., Ben-Cheikh, W., Gomez-Cadenas, A., Mehouachi, J., Botella, J. P., Primo-Millo, E. (1997). Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence. Eight International Symposium on Plant Bioregulators in Fruit Production, (463), 209-217. 0567-7572; 90-6605-959-1 http://hdl.handle.net/20.500.11939/4560 10.17660/ActaHortic.1998.463.24 en openAccess Impreso |
| spellingShingle | Talón, Manuel Tadeo, Francisco R. Ben-Cheikh, W. Gómez-Cadenas, Aurelio Mehouachi, J. Botella, J. P. Primo-Millo, Eduardo Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title | Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title_full | Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title_fullStr | Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title_full_unstemmed | Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title_short | Hormonal regulation of fruit set and abscission in citrus: Classical concepts and new evidence |
| title_sort | hormonal regulation of fruit set and abscission in citrus classical concepts and new evidence |
| url | http://hdl.handle.net/20.500.11939/4560 |
| work_keys_str_mv | AT talonmanuel hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT tadeofranciscor hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT bencheikhw hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT gomezcadenasaurelio hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT mehouachij hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT botellajp hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT primomilloeduardo hormonalregulationoffruitsetandabscissionincitrusclassicalconceptsandnewevidence AT talonmanuel actahorticulturae AT tadeofranciscor actahorticulturae AT bencheikhw actahorticulturae AT gomezcadenasaurelio actahorticulturae AT mehouachij actahorticulturae AT botellajp actahorticulturae AT primomilloeduardo actahorticulturae |