Site-specific sperm agglutination and the timed release of a sperm chemo-attractant by the egg of the leptomedusan,Orthopyxis caliculata
作者： Richard L. Miller
关键词: Orthopyxis caliculata 、 Orthopyxis 、 Polar body 、 Sperm entry 、 Head to head 、 Human fertilization 、 Andrology 、 Botany 、 Sperm 、 Biology 、 Sperm Agglutination 、 Animal Science and Zoology 、 General Medicine
摘要: In Orthopyxis sperm entry apparently occurs at the site of emission polar bodies. If are present from time spawning egg, they agglutinate head to shortly after second body but only a point on egg surface under body. Since agglutination does not occur elsewhere it appears that this part and probably other hydromedusae is special membrane patch which causes bind reversibly both it, each other. The develops specific during maturation ceases function or just fertilization. Concomitant with appearance production species-specific attractant by egg. These results imply has strict control timing penetration also attracted
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