Effects of Ca2+ and Mg2+ on motility of sea urchin spermatozoa |
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| Authors: | F Iwasa H Shimizu H Mohri |
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| Institution: | (1) Department of Biology, University of Tokyo, Komaba, Meguro-ku, 153 Tokyo, (Japan);(2) Optoelectronics Section, Electrotechnical Laboratory, Niihari-gun, 305 Ibaragi-ken, Japan |
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| Abstract: | Summary Swimming speed of sea urchin spermatozoa, measured by a light scattering technique, did not change with 0-20 mM Ca2+ in the medium. The speed was maximum at the normal concentration of Mg2+ (49 mM) in sea water.Supported by grants-in-aid from the Ministry of Education, Science and Culture, Japan, and a grant from the Ford Foundation. |
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