Summary
Inhibitory effects of three peptidyl phenylalaninals on fertilization and on chymotrypsin-like enzyme activity of sperm in three species of ascidians were examined. The results suggest that a sperm chymotrypsin-like enzyme is indispensable for the fertilization in each of the ascidians, and that these enzymes have different susceptibilities to inhibitors.
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References
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12 November 1986
Acknowledgments. We are indebted to Dr M. Hoshi of Tokyo Institute of Technology for his helpful discussion. This work was supportd by a Grant-in-Aid from the Ministry of Education, Science and Culture of Japan.
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Yokosawa, H., Numakunai, T., Murao, S. et al. Sperm chymotrypsin-like enzymes of different inhibitor-susceptibility as lysins in ascidians. Experientia 43, 925–927 (1987). https://doi.org/10.1007/BF01951671
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DOI: https://doi.org/10.1007/BF01951671