Pollen and microsporangium development in Hovenia dulcis (Rhamnaceae) a different type of tapetal cell ultrastructure
Despite that there is some literature on pollen morphology of Rhamnaceae, studies addressing general aspects of the microsporogenesis, microgametogenesis, and anther development are rare. The aim of this paper is to describe the ultrastructure of pollen grain ontogeny with special attention to tapet...
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| Formato: | Artículo |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2017gotellimarina3.pdf LINK AL EDITOR |
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| 022 | |a 1615-6102 | ||
| 024 | |a 10.1007/s00709-015-0870-x | ||
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| 245 | 1 | |a Pollen and microsporangium development in Hovenia dulcis (Rhamnaceae) |b a different type of tapetal cell ultrastructure | |
| 520 | |a Despite that there is some literature on pollen morphology of Rhamnaceae, studies addressing general aspects of the microsporogenesis, microgametogenesis, and anther development are rare. The aim of this paper is to describe the ultrastructure of pollen grain ontogeny with special attention to tapetum cytology in Hovenia dulcis. Anthers at different tages of development were processed for transmission and scanning electron microscopy, bright-field microscopy, and fluorescence microscopy. Different histochemical reactions were carried out. The ultrastructural changes observed during the development of the tapetal cells and pollen grains are described. Large vesicles containing carbohydrates occur in the tapetal cell cytoplasm during the early stages of pollen development. Its origin and composition are described and discussed. This is the first report on the ontogeny and ultrastructure of the pollen grain and related sporophytic structures of H. dulcis. | ||
| 653 | |a TAPETUM | ||
| 653 | |a POLYSACCHARIDE VESICLES | ||
| 653 | |a MICROSPOROGENESIS | ||
| 653 | |a MICROGAMETOGENESIS | ||
| 653 | |a HOVENIA DULCIS | ||
| 653 | |a RHAMNACEAE | ||
| 700 | 1 | |9 66951 |a Gotelli, Marina María |u Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453 (1417), Buenos Aires, Argentina y CONICET, Buenos Aires, Argentina | |
| 700 | 1 | |9 37472 |a Galati, Beatriz Gloria |u Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453 (1417), Buenos Aires, Argentina | |
| 700 | 1 | |9 70148 |a Zarlavsky, Gabriela Elena |u Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453 (1417), Buenos Aires, Argentina | |
| 700 | 1 | |9 22906 |a Medan, Diego |u Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453 (1417), Buenos Aires, Argentina y CONICET, Buenos Aires, Argentina | |
| 773 | |t Protoplasma : an International Journal of Cell Biology |g Vol.253, no.4 (2016), p.1125-1133, fot. | ||
| 856 | |f 2017gotellimarina3 |i En Reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2017gotellimarina3.pdf |x ARTI201805 | ||
| 856 | |u https://link.springer.com |z LINK AL EDITOR | ||
| 942 | |c ENLINEA | ||
| 942 | |c ARTICULO | ||
| 976 | |a AAG | ||