The removal of the sperm perinuclear theca and its association with the bovine oocyte surface during fertilization.

Abstract

The perinuclear theca (PT) is a unique cytoskeletal structure whose anterior part is intercalated between the inner acrosomal membrane and the nuclear envelope of the mammalian sperm head and is important for spermiogenesis and stabilization of sperm structures (Oko and Maravei, Biol. Reprod. 50, 1000-1014, 1994; Oko and Maravei, Microsc. Res. Tech. 32, 520… (More)

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