Artículo
Structure of the stigma and style in sunflower (Helianthus annuus L.)
Fecha de publicación:
12/2010
Editorial:
Inst Histol Embriol-CONICET
Revista:
Biocell
ISSN:
0327-9545
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This is the first report of the ultrastructure of the stigma and style during and after anthesis in Helianthus annuus L. using light and transmission electron microscopy. The stigma is bifid with unicellular papillae. There is no secretion of lipids, carbohydrates or proteins at anthesis. The style is semisolid in the upper portion, closer to the stigma, and becomes solid below. Ultrastructural changes on cells of the stigma and the style are described. The transmitting tissue of the ovule is first evident 40 minutes after pollination and persists during the first stages of embryogenesis. Only one pollen tube per micropyle was observed growing through this tissue.
Palabras clave:
Ultrastructure
,
Ggynoecium
,
Ovule
,
Transmitting Tissue
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Citación
Gotelli, Marina María; Galati, B. G.; Medan, Diego; Structure of the stigma and style in sunflower (Helianthus annuus L.); Inst Histol Embriol-CONICET; Biocell; 34; 3; 12-2010; 133-138
Compartir