Reproductive biology of Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae]
Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] is an epiphytic orchid that presents showy yellow flowers with brown markings on sepals and petals, fragranceless and with oil as reward. The floral biology of this species was studied in cultivated individuals to describe phenology, flower longev...
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| Formato: | Artículo |
| Lenguaje: | Español |
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| Acceso en línea: | http://ri.agro.uba.ar/files/download/articulo/2011Torretta.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Reproductive biology of Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] |
| 246 | 1 | 0 | |a Biología reproductiva de Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] |
| 520 | |a Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] is an epiphytic orchid that presents showy yellow flowers with brown markings on sepals and petals, fragranceless and with oil as reward. The floral biology of this species was studied in cultivated individuals to describe phenology, flower longevity, reproductive system [using manipulative treatment of cross-pollination vs. self-pollination] and floral pollinators. Moreover, direct observations were made on plants exposed outdoors to identify pollinators, describing their foraging behavior and the duration of visits. The results showed that G. bifolia is a mainly self-incompatible, non-autogamous and pollinator-dependent species. The fruit set in manually cross-pollination flowers [100 percent] was higher than the manually self-pollinated flowers [30.8 percent], whereas the control flowers did not set fruits. Females of Centris trigonoides [Apidae, Centridini] were the exclusive pollinators, and the visit rate was low. Several Neotropical orchids of the subtribe Oncidiinae offer floral oils to the pollinators, like the Malpighiaceae familiy. Our results allow inferring that both groups of plants would be part of a guild of species pollinated by oil-collecting bees and that the deceit/pollination syndrome should not be applied to all Oncidiinae flowers. | ||
| 653 | 0 | |a FLORAL BIOLOGY | |
| 653 | 0 | |a OIL-REWARDING FLOWER | |
| 653 | 0 | |a ONCIDIINAE, REPRODUCTION | |
| 653 | 0 | |a ANGIOSPERM | |
| 653 | 0 | |a FLOWER | |
| 653 | 0 | |a FORAGING BEHAVIOR | |
| 653 | 0 | |a LONGEVITY | |
| 653 | 0 | |a PHENOLOGY | |
| 653 | 0 | |a POLLINATION | |
| 653 | 0 | |a POLLINATOR | |
| 653 | 0 | |a REPRODUCTIVE BIOLOGY | |
| 653 | 0 | |a APIDAE | |
| 653 | 0 | |a APOIDEA | |
| 653 | 0 | |a CENTRIDINI | |
| 653 | 0 | |a CENTRIS TRIGONOIDES | |
| 653 | 0 | |a CYMBIDIEAE | |
| 653 | 0 | |a GOMESA | |
| 653 | 0 | |a MALPIGHIACEAE | |
| 653 | 0 | |a ONCIDIINAE | |
| 653 | 0 | |a ORCHIDACEAE | |
| 700 | 1 | |9 57679 |a Torretta, Juan Pablo | |
| 700 | 1 | |a Gomiz, Natalia E. |9 67371 | |
| 700 | 1 | |9 35507 |a Aliscioni, Sandra Silvina | |
| 700 | 1 | |9 69375 |a Bello, Mariano E. | |
| 773 | |t Darwiniana |g Vol.49, no.1 (2011) p.16-24 | ||
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| 900 | |a ^tReproductive biology of Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] | ||
| 900 | |a ^tBiología reproductiva de Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] | ||
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| 900 | |a ^aTorretta, J.P.^tCátedra de Botánica Agrícola, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE Ciudad Autónoma de Buenos Aires, Argentina | ||
| 900 | |a ^aGomiz, N.E.^t | ||
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| 900 | |a 16 | ||
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| 900 | |a Vol. 49, no. 1 | ||
| 900 | |a 24 | ||
| 900 | |a FLORAL BIOLOGY | ||
| 900 | |a OIL-REWARDING FLOWER | ||
| 900 | |a ONCIDIINAE, REPRODUCTION | ||
| 900 | |a ANGIOSPERM | ||
| 900 | |a FLOWER | ||
| 900 | |a FORAGING BEHAVIOR | ||
| 900 | |a LONGEVITY | ||
| 900 | |a PHENOLOGY | ||
| 900 | |a POLLINATION | ||
| 900 | |a POLLINATOR | ||
| 900 | |a REPRODUCTIVE BIOLOGY | ||
| 900 | |a APIDAE | ||
| 900 | |a APOIDEA | ||
| 900 | |a CENTRIDINI | ||
| 900 | |a CENTRIS TRIGONOIDES | ||
| 900 | |a CYMBIDIEAE | ||
| 900 | |a GOMESA | ||
| 900 | |a MALPIGHIACEAE | ||
| 900 | |a ONCIDIINAE | ||
| 900 | |a ORCHIDACEAE | ||
| 900 | |a Gomesa bifolia [Orchidaceae, Cymbidieae, Oncidiinae] is an epiphytic orchid that presents showy yellow flowers with brown markings on sepals and petals, fragranceless and with oil as reward. The floral biology of this species was studied in cultivated individuals to describe phenology, flower longevity, reproductive system [using manipulative treatment of cross-pollination vs. self-pollination] and floral pollinators. Moreover, direct observations were made on plants exposed outdoors to identify pollinators, describing their foraging behavior and the duration of visits. The results showed that G. bifolia is a mainly self-incompatible, non-autogamous and pollinator-dependent species. The fruit set in manually cross-pollination flowers [100 percent] was higher than the manually self-pollinated flowers [30.8 percent], whereas the control flowers did not set fruits. Females of Centris trigonoides [Apidae, Centridini] were the exclusive pollinators, and the visit rate was low. Several Neotropical orchids of the subtribe Oncidiinae offer floral oils to the pollinators, like the Malpighiaceae familiy. Our results allow inferring that both groups of plants would be part of a guild of species pollinated by oil-collecting bees and that the deceit/pollination syndrome should not be applied to all Oncidiinae flowers. | ||
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