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用透射电子显微镜,观察了裸体方格星虫和可口革囊星虫精子的超微结构.这2种星虫成熟精子均由头部、中部和尾部组成,但其精子头部的超微结构不尽相同:裸体方格星虫精子的头部与可口革囊星虫精子的头部相比较小,由棒状“八”字形顶体与哑铃形细胞核及顶体下腔构成,而顶体下腔内没有明显的顶体棒结构.可口革囊格星虫精子的头部虽也由顶体、顶体下腔和核组成,其顶体呈圆弧形,精核为鸭梨形,核物质电子密度高,核内含空泡,顶体下腔中似有一顶体棒结构.这2种星虫精子的中部和尾部基本类似,仅中部的线粒体数目不同,裸体方格星虫精子的线粒体略少,有4~5个,而可口革囊星虫精子有5~7个.精子的尾部由远端中心粒延伸而出,均为细长鞭状,由轴丝及包绕轴丝的质膜组成,轴丝为典型的“9+2”结构.研究结果表明,精子的超微结构可以作为鉴别这2种星虫的依据.
Transmission electron microscopy was used to observe the ultrastructure of Spermophilus nudiensis and Sarcocystis spp. The mature sperms of both species were composed of the head, middle and tail, but the ultrastructure of sperm head Not identical: The head of Spermophilus nude sperm is smaller than the head of a sarcodactyla spp., And consists of a rod-shaped, eight-shaped acrosome and dumbbell-shaped nucleus and acrosome, while the top There is no obvious acrosome structure in the inferior body of the body.Although the head of Sarcocystis sperm is composed of acrosome, acrosome and the nucleus, its acrosome is arcuate, , Nuclear material electron density is high, the nucleus containing vacuoles, the acrosomal lower chamber seems to have a body stick structure.The two kinds of sperm sperm central and tail are basically similar, only the central part of the number of different mitochondria, Sperm mitochondria slightly less, there are 4 to 5, and the delicious capsule sperm sperm have 5 to 7. Sperm tail from the distal center of the pellet out, are elongated whip, by the axis of silk and wrap The structure of the axonal silk membrane, the axis of the wire is a typical “9 +2 ” structure.The results show that the ultrastructure of sperm can be used as a basis for the identification of these two kinds of astrocytomas.