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dc.contributor.authorBermejo, Almudena
dc.contributor.authorMartínez-Alcántara, Belén
dc.contributor.authorMartínez-Cuenca, Mary-Rus
dc.contributor.authorYuste, Roberto
dc.contributor.authorMesejo, Carlos
dc.contributor.authorReig, Carmina
dc.contributor.authorAgustí, Manuel
dc.contributor.authorPrimo-Millo, Eduardo
dc.contributor.authorIglesias, Domingo J.
dc.identifier.citationBermejo, A., Martínez-Alcántara, B., Martínez-Cuenca, M. R., Yuste, R., Mesejo, C., Reig, C., ... & Iglesias, D. J. (2016). Biosynthesis and Contents of Gibberellins in Seeded and Seedless Sweet Orange (Citrus sinensis L. Osbeck) Cultivars. Journal of plant growth regulation, 35(4),
dc.identifier.issn0721-7595 (Print ISSN)
dc.identifier.issn1435-8107 (Electronic ISSN)
dc.description.abstractIn this work, we study the capacity to biosynthesize gibberellins (GA) of ovules (either fertilised or unfertilised), developing seeds and pericarp from fruitlets and their relation with fruit set capacity. Experiments were performed in adult, 12-year-old trees of seeded (Pineapple) and seedless parthenocarpic (Washington navel) sweet orange [Citrus sinensis L. Osbeck] cultivars. The activity of GA20-, GA3- and GA2-oxidases and gibberellin levels were measured in the ovules and pericarp of fruitlets in different development states. The results indicate that ovules are the main sites of gibberellin synthesis in fruitlets during the post-anthesis period. The most intense GA1 synthesis—coincident with the highest expression of GA20ox2, GA3ox1 and GA2ox1—was detected in the ovules of the seeded cultivar, probably induced by fecundation and associated with low early fruitlet abscission rates. By contrast, the low activity detected in the sterile cultivar appears to be rather developmentally or constitutively regulated. As a fruitlet develops, the GA1 concentration is augmented in the pericarp in comparison to ovules or developing seeds, and levels therein did not exhibit noticeable differences between varieties. Furthermore, developing seeds from pineapple had higher GA1 content than the unfertilised abortive ovules from Washington navel. Taken together, data suggest a main role for this hormone in the control of fruitlet abscission, and also demonstrate a function in seed
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subjectWashington Naveles
dc.titleBiosynthesis and Contents of Gibberellins in Seeded and Seedless Sweet Orange (Citrus sinensis L. Osbeck) Cultivarses
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro de Citricultura y Producción Vegetales
dc.entidadIVIACentro de Genómicaes
dc.journal.titleJournal of Plant Growth Regulationes
dc.subject.agrisF30 Plant genetics and breedinges
dc.subject.agrisF60 Plant physiology and biochemistryes
dc.subject.agrovocCitrus sinensises

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Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España