Artículos de revistas
Ultrastructural immunocytochemical evidence for actin in the acrosomal complex during spermiogenesis of the lizard Tropidurus itambere (Rodrigues, 1987) (Reptilia : Tropiduridae)
Registro en:
Caryologia. Univ Florence Botany Inst, v. 59, n. 3, n. 213, n. 219, 2006.
0008-7114
2165-5391
WOS:000242613600002
Autor
Adelina, F
Mehanna, M
Dolder, H
Institución
Resumen
During spermiogenesis of the lizard Tropidurus itambere early developmental stages of the acrosomal complex have been analysed and new suggestions made as to their origin. Actin has been detected in the acrosomal granule and pro-acrosomal vesicle of spermatid, using an antibody for alpha-smooth muscle actin (monoclonal alpha-SMA). Intense marking also identified actin in two regions of the acrosomal complex; the subacrosomal cone and the perforatorium. The acrosomal and subacrosomal granules appear to participate to the formation of the perforatorium, while the pro-acrosomal vesicle is responsible for the formation of the subacrosomal cone. The results therefore endorse the view that, in lizards, the perforatorium and subacrosomal cone are homologous, in composition and probably also in function. 59 3 213 219