A preliminary ultrastructural study of Phragmatopoma (Polychaeta) gametes |
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| Authors: | James C. Kopp |
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| Affiliation: | Department of Biology , California State University , Fullerton , CA , 92634 , U.S.A. |
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| Abstract: | Summary The mature sperm morphology of this sabellariid polychaete most strongly resembles that of certain mussel sperm, with weaker resemblances to other polychaete and mollusc sperms. Sperm-egg binding appears to be aided by a filament, present in the mature unreacted sperm, which lengthens during the acrosome reaction, passes through the egg vitelline envelope, and binds within a few minutes of insemination to the egg plasma membrane. |
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| Keywords: | Phragmatopoma californica polychaete ultrastructure sperm egg acrosome |
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