Histological analysis of pollen-pistil interactions in sour passion fruit plants (Passiflora edulis Sims)
Biocell
;
36(2): 83-90, Aug. 2012. ilus
Artículo
en Inglés
| LILACS
| ID: lil-662145
ABSTRACT
The success of sexual plant reproduction is directly influenced by specific interactions between the pollen and pistil. Light, fluorescence and scanning electron microscopy techniques were used to evaluate the steps of pollination in sour passion fruit plants (Passiflora edulis Sims). In the compatible interaction, pollen tubes grow through stigma projections towards the ovary. The pollen grain surface was found to be spheroidal and to consist of heteroreticulate exine with six colpi. Furthermore, analysis in vivo of pollen-pistil interactions indicated that stigmas of flowers 24 hours before anthesis are unable to discriminate compatible (genetically unrelated) and incompatible (genetically related) pollen grains. Taken together, these results provide insight into the cellular mechanisms underlying pollination in passion fruit plants.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Polen
/
Passiflora
/
Flores
/
Polinización
Idioma:
Inglés
Revista:
Biocell
Asunto de la revista:
Clulas
Año:
2012
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Estadual do Norte Fluminense Darcy Ribeiro/BR
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