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Role of endopeptidase in motility induction in apyrene silkworm spermatozoa; micropore formation in the flagellar membrane

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Summary

Immotile apyrene spermatozoa of the silkworm have a thick electron-dense flagellar membrane. On activation of apyrene spermatozoa by initiatorin, a prostatic endopeptidase of the silkworm, or by trypsin, the flagellar membrane becomes thinner, with the formation of many micropores. It then resembles that of motile apyrene spermatozoa in vivo.

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Authors and Affiliations

  1. Department of Biology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, 173, Itabashi-ku, Tokyo, Japan

    M. Osanai & H. Kasuga

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  1. M. Osanai
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  2. H. Kasuga
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Osanai, M., Kasuga, H. Role of endopeptidase in motility induction in apyrene silkworm spermatozoa; micropore formation in the flagellar membrane. Experientia 46, 261–264 (1990). https://doi.org/10.1007/BF01951759

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  • DOI: https://doi.org/10.1007/BF01951759

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