Academic Journal
Self-pollination and parthenocarpic ability in developing ovaries of self-incompatible Clementine mandarins (Citrus clementina)
| العنوان: | Self-pollination and parthenocarpic ability in developing ovaries of self-incompatible Clementine mandarins (Citrus clementina) |
|---|---|
| المؤلفون: | Mesejo Conejos, Carlos, Yuste, Roberto, Martínez Fuentes, Amparo, Reig Valor, Carmina, Iglesias, Domingo J., Primo-Millo, Eduardo, Agustí Fonfría, Manuel |
| المساهمون: | Universitat Politècnica de València. Departamento de Producción Vegetal - Departament de Producció Vegetal, Universitat Politècnica de València. Instituto Agroforestal Mediterráneo - Institut Agroforestal Mediterrani |
| بيانات النشر: | Wiley-Blackwell |
| سنة النشر: | 2013 |
| المجموعة: | Universitat Politécnica de Valencia: RiuNet / Politechnical University of Valencia |
| مصطلحات موضوعية: | Apricot prunus-armeniaca, Polar auxin transport, Valencia sweet orange, Fruit-set, Gibberellic acid, Seedless mandarins, Pollen germination, Abscission, Tomato, PRODUCCION VEGETAL |
| الوصف: | This study aimed to determine if self-pollination is needed to trigger facultative parthenocarpy in self-incompatible Clementine mandarins (Citrus clementina Hort. ex Tan.). 'Marisol' and 'Clemenules' mandarins were selected, and self-pollinated and un-pollinated flowers from both cultivars were used for comparison. These mandarins are always seedless after self-pollination and show high and low ability to develop substantial parthenocarpic fruits, respectively. The time-course for pollen grain germination, tube growth and ovule abortion was analyzed as well as that for carbohydrates, active gibberellins (GA 1 and GA 4), auxin (IAA) and abscisic acid (ABA) content in the ovary. 'Clemenules' showed higher pollen grain germination, but pollen tube development was arrested in the upper style 9days after pollination in both cultivars. Self-pollination did not stimulate parthenocarpy, whereas both un-pollinated and self-pollinated ovaries set fruit regardless of the cultivar. On the other hand, 'Marisol' un-pollinated flowers showed greater parthenocarpic ovary growth than 'Clemenules' un-pollinated flowers, i.e. higher ovule abortion rate (+21%), higher fruit set (+44%) and higher fruit weight (+50%). Further, the greater parthenocarpic ability of 'Marisol' paralleled higher levels of GA 1 in the ovary (+34% at anthesis). 'Marisol' ovary also showed higher hexoses and starch mobilization, but lower ABA levels (-64% at anthesis). Self-pollination did not modify carbohydrates or GA content in the ovary compared to un-pollination. Results indicate that parthenocarpy in the Clementine mandarin is pollination-independent with its ability to set depending on the ovary hormone levels. These findings suggest that parthenocarpy in fertile self-incompatible mandarins is constitutively regulated. © Physiologia Plantarum 2012. ; Mesejo Conejos, C.; Yuste, R.; Martinez Fuentes, A.; Reig Valor, C.; Iglesias, DJ.; Primo-Millo, E.; Agustí Fonfría, M. (2013). Self-pollination and parthenocarpic ability in developing ovaries of ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0031-9317 |
| Relation: | Physiologia Plantarum; http://dx.doi.org/10.1111/j.1399-3054.2012.01697.x; urn:issn:0031-9317; http://hdl.handle.net/10251/62562 |
| DOI: | 10.1111/j.1399-3054.2012.01697.x |
| الاتاحة: | http://hdl.handle.net/10251/62562 https://doi.org/10.1111/j.1399-3054.2012.01697.x |
| Rights: | http://rightsstatements.org/vocab/InC/1.0/ ; info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.A5459CEF |
| قاعدة البيانات: | BASE |
| تدمد: | 00319317 |
|---|---|
| DOI: | 10.1111/j.1399-3054.2012.01697.x |