Abstract
It is well know that the spermatozoa are highly polarized cells. The membrane of mammals sperm have been studied in detail. The results have shown are markable diversity of structure with in an otherwise common place unit membrane. However, very few papers were dealt with teleost sperm membrane. Our privious report shows that Carassius auratus (Cyprinidae) sperm membrane have differentiated with regional specificity just like those in mammals. In general, intramembrane protein particles are highly organized at certain are as in the head plasma membrane forming crystalline-like structure, in contrast, rest areas of plasma membrane contain many random dispersed particles. The present study has shown the existence as well as the characteristics of crystalline-like structure in sperm membrane of Chinese Rhodeus sinensis, Acheilognathinae, Cyprinidae.In spawing season the male fish are killed, apart of test is were took out and put into 2.5% glutaraldehyde buffered to pH 7.2 with 0.1mol/L sodium cacodylate.
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