IADIZA 20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
artículos
Título:
Polen development and morphology in four species of Pterocactus (Cactaceae).
Autor/es:
GOTELLI, M.M., SCAMBATO, A., GALATTI, B & KIESLING R.
Revista:
ANNALES BOTANICI FENNICI
Editorial:
FINNISH ZOOLOGICAL BOTANICAL PUBLISHING BOARD
Referencias:
Lugar: ESTOCOLMO; Año: 2009 vol. 46 p. 409 - 415
ISSN:
0003-3847
Resumen:
We report a detailed study of the development and morphology in four species of the genus Pterocactus (Cactaceae), carried on usinf LM and SEM. The anther is tetrasporangiate, its wals consist of epidermis, endothecium, one middle layer and a binucleate secretory tapetum. Microspore tethrads arre tethraedrical and pollen grains are are shed at binuclear stage. Pollen grains are panthoporate with a perforate tectum and supratectate spinules.
