ABSTRACT
Fig. 5.44 The acrosome reaction in Discoglossus pictus. A. Sperm bundle. B. A single spermatozoon. Arrow, apical rod (axial perforatorium) and surrounding membranes here considered to be acrosomal. H, head. N, neck. T, tail. C. Intact sperm head. Components in the terminology of this chapter are: A, acrosome vesicle. B, conical perforatorium. In the narrow nucleus chromatin and an endonuclear canal are present. The small arrow indicates the inner acrosome membrane. D. Vesiculation of the acrosome vesicle. E. Loss of component B (the conical perforatorium). F. Loss of component A (the acrosome vesicle). After Campanella C. et al. 1997. Molecular Reproduction and Development 47: 323-333, Fig. 3.
