Ultrastructure and morphology of spermatozoa in Chinese sturgeon (Acipenser sinensis Gray 1835) using scanning and transmission electron microscopy
文献类型： 外文期刊
第一作者： Wei, Q.
作者： Wei, Q.;Li, P.;Psenicka, M.;Alavi, S. M. Hadi;Shen, L.;Liu, J.;Peknicova, J.;Linhart, O.
作者机构：
期刊名称：THERIOGENOLOGY （ 影响因子：2.74； 五年影响因子：2.93 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： The Chinese sturgeon (Acipenser sinensis Gray 1835) is an endangered anadromous sturgeon inhabiting the Yangtze River in China. In this study, the ultrastructure and morphology of spermatozoa was studied using transmission and scanning electron microscopy with a cryo-holder. The spermatozoon consisted of an elongated head with a distinct acrosome and nucleus region, a midpiece and a flagellum. The mean length of the head and midpiece, the flagellum and total length of spermatozoon were 4.48, 33.3 and 37.8 microm, respectively. The nucleus was an elongated trapezoid shape with anterior (acrosome) end narrower than the posterior. Granular material and an actin filament were observed within the anterior acrosome. Three to five endonuclear canals were present. The midpiece was eudipleural along its longitudinal axis. Compared to other sturgeon species, the data from the present study suggest a more recent evolutionary linkage between Chinese sturgeon and white sturgeon (Acipenser transmontanus Richardson 1836).
分类号： Q95
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