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- W2386692825 abstract "The scanning electron microscope was applied to observe the morphology of sperms and eggs as well as the process of sperm penetration of micropyle in Chinese black sleeper(Bostrichthys sinensis Lacepede).Spermatozoon,17.0～19.0 μm in length,was composed of a head,a short midpiece and a long flagellum.The mature egg was spherical in shape,with a diameter of 600~670 μm.The micropyle was located at the centre of the filaments apparatus.The adhesion apparatus was composed of a basal plate,a cribriform column and a clump of adhesive filaments.Spermatozoa passed through the basal perforations and the cribriform perforations toward the micropylar.The micropyle was a funnel-shaped structure that consisted of a vestibule and a micropylar canal.Before fertilization,flocculent material spread on the basal plate,micropylar region and miropyle.As soon as sperm attached to the oocyte plasma membrane,the flocculent material disappeared,but micropyle was plugged by micropylar cell.After sperm entered the micropylar canal,the micropylar cell disappeared.The micropyle was plugged by flocculent material after fertilization." @default.
- W2386692825 created "2016-06-24" @default.
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- W2386692825 date "2009-01-01" @default.
- W2386692825 modified "2023-09-24" @default.
- W2386692825 title "Scanning Electron Microscopic Observations on Sperm Penetration of Micropyle in Chinese Black Sleeper(Bostrichthys sinensis Lacepede)" @default.
- W2386692825 hasPublicationYear "2009" @default.
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