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Spermatozoa of Conger myriaster Observed by Electron Microscopy

机译：电子显微镜观察海鳗精子

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摘要

We examined the morphological features of spermatozoa from Conger myriaster by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Spermatozoa consisted of three regions, a head, neck and flagellum. Total length was approximately 40 #mu#m, with the head 3 #mu#m, neck 0.5 #mu#m and flagellum about 37 #mu#m. The head was crescent-shaped, with a mitochondrion on the concave surface. The neck, with an attached rootlet, consisted of two constrictions close to the base of the flagellum. Two bundles extending from the proximal centrioles existed on both the convex and concave surfaces of the sperm head. The flagellum showed a 9+0 axonemal pattern. Some flagella showed a coiled form, the developmental mechanism of which was unclear These features were compared with those of other Anguilliformes.
机译：我们通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）检查了Conger myriaster精子的形态特征。精子由三个区域组成，分别是头部，颈部和鞭毛。总长度约为40μm，头部为3μm，颈部为0.5μm，鞭毛约为37μm。头是新月形的，凹面有线粒体。脖子上有根茎，由两个靠近鞭毛基部的颈缩组成。从近端中心延伸出的两个束同时存在于精子头的凸面和凹面。鞭毛表现出9 + 0的轴突形式。一些鞭毛呈螺旋状，其发育机理尚不清楚。这些特征已与其他An形虫进行了比较。

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