In this study, we used SEM and TEM to investigate the ultrastructure of spermatozoa from the cauda epididymis of Talpa romana. For comparison, we also analysed spermatozoa from the cauda epididymis of T. europaea captured in the same area. The male gamete of T. romana has a flattened head with an elliptic profile, consisting of a large acrosome and a nuclear region separated by a thin subacrosomal space. At the tip of the nucleus, the subacrosomal space ends in a finger-shaped projection. The tail includes a connecting piece, middle piece, principal piece and end piece. The male gametes of T. romana are substantially similar to those of T. europaea. A comparison with other species of insectivores permits extension of the similarity of sperm features to Scalopus aquaticus and Condylura cristata. Many spermatozoa from the cauda epididymis of T. romana and T. europaea have the tail bent at the annulus, and this is always associated with remnants of cytoplasmic droplets. This morphology is considered to be a common phenomenon.

Ultrastructure of the spermatozoon of Talpa romana (Mammalia, Lipotyphla) / F., Beolchini; Rebecchi, Lorena; Bertolani, Roberto; E., Capanna. - In: ZOOMORPHOLOGY. - ISSN 0720-213X. - STAMPA. - 124:(2005), pp. 27-31.

Ultrastructure of the spermatozoon of Talpa romana (Mammalia, Lipotyphla)

REBECCHI, Lorena;BERTOLANI, Roberto;
2005

Abstract

In this study, we used SEM and TEM to investigate the ultrastructure of spermatozoa from the cauda epididymis of Talpa romana. For comparison, we also analysed spermatozoa from the cauda epididymis of T. europaea captured in the same area. The male gamete of T. romana has a flattened head with an elliptic profile, consisting of a large acrosome and a nuclear region separated by a thin subacrosomal space. At the tip of the nucleus, the subacrosomal space ends in a finger-shaped projection. The tail includes a connecting piece, middle piece, principal piece and end piece. The male gametes of T. romana are substantially similar to those of T. europaea. A comparison with other species of insectivores permits extension of the similarity of sperm features to Scalopus aquaticus and Condylura cristata. Many spermatozoa from the cauda epididymis of T. romana and T. europaea have the tail bent at the annulus, and this is always associated with remnants of cytoplasmic droplets. This morphology is considered to be a common phenomenon.
124
27
31
Ultrastructure of the spermatozoon of Talpa romana (Mammalia, Lipotyphla) / F., Beolchini; Rebecchi, Lorena; Bertolani, Roberto; E., Capanna. - In: ZOOMORPHOLOGY. - ISSN 0720-213X. - STAMPA. - 124:(2005), pp. 27-31.
F., Beolchini; Rebecchi, Lorena; Bertolani, Roberto; E., Capanna
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/307353
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