ISSN:
1420-9071
Keywords:
Fertilization
;
sperm protease
;
ascidian
;
timing
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary The timing of action of three sperm proteases, acrosin, spermosin, and a chymotrypsin-like enzyme, in the fertilization of the ascidian,Halocynthia roretzi, was examined by adding specific protease inhibitors at various times after insemination. The results indicate that the last two enzymes both function at the early stage of the process of sperm penetration through the egg investment, while acrosin functions at the late stage.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01975902
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