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- W2374218963 abstract "The mature eggs,spermatozoa and fertilization process of Tridentiger trigonocephalus taken from the Yangtze Estuary have been observed by means of scanning electron microscopy.It came to know that the sperm of T.trigonocephalus is belonged in the flagellum form.The spermatic head is almost round in shape and without acrosome.The long radius is 1.15±0.28 mm.The short radius is 0.97±0.22 mm.The length of flagellum is 8.17±1.12 mm.The surfaces of nucleus membrane and plasma membrane are not even.The space between the membrane of the nucleus and cytoplasm is relatively large.The implantation fossa is relatively shallow.The centriolar complex is consisted of proximal centriole and basal body.There are 2-3 mitochondria on the two sides of the central space of sleeve.The central structure of the tail is axoneme which formed a typical 9+2 pattern.The mature egg of T.trigonocephalus is sphaeroid,with only one micropyle.The outside of micropyle's diameter is about 5μm,and with spiral cristaes on the internal wall.There are lots of cristaes and ditchs on the surface of mature eggs.There is a dish-like tuber in the vegetal pole,the middle of which is rotundity.The circumjacent filaments connected tuber with the egg-membrane presented netlike configuration.The penetration of sperm into the eggs is quick and the process of the fertilization is short,the time of penetration needs 10 to 18s." @default.
- W2374218963 created "2016-06-24" @default.
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- W2374218963 date "2008-01-01" @default.
- W2374218963 modified "2023-09-24" @default.
- W2374218963 title "Observation on spermatozoa,egg and sperm penetration of Tridentiger trigonocephalus by means of scanning electron microscopy" @default.
- W2374218963 hasPublicationYear "2008" @default.
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