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ACROSOME DIFFERENTIATION IN THE SPERMATOGENESIS OF CIONA INTESTINALIS *
Author(s) -
COTELLI FRANCO,
SANTIS ROSARIA,
ROSATI FLORIANA,
MONROY ALBERTO
Publication year - 1980
Publication title -
development, growth and differentiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 66
eISSN - 1440-169X
pISSN - 0012-1592
DOI - 10.1111/j.1440-169x.1980.00561.x
Subject(s) - acrosome , ciona intestinalis , spermatozoon , microbiology and biotechnology , spermiogenesis , biology , vesicle , anatomy , chromatin , ultrastructure , membrane , semen , genetics , gene
The process of acrosome formation in the course of spermatogenesis of Ciona intestinalis has been investigated. At the flute‐beak‐shaped tip of the head of the mature spermatozoon a small acrosomal vesicle(s) is described. The vesicles migrate to a region where the outer and inner nuclear membranes fuse thus giving rise to a “dense plate”. At the same time the chromatin begins to organize into longitudinally oriented strands which become attached to the inner side of the dense plate. The possible relationships between the dense plate, the formation of the acrosome and the orientation of the chromatin is discussed.