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首页> 外文期刊>Journal of submicroscopic cytology and pathology >The ultrastructure of the mature spermatozoon of the bivalve Gafrarium tumidum (Bivalvia, Heterodonta, Veneridae, Circinae).
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The ultrastructure of the mature spermatozoon of the bivalve Gafrarium tumidum (Bivalvia, Heterodonta, Veneridae, Circinae).

机译:双壳Gafrarium tumidum(双壳纲,杂齿纲,Veneridae,Circinae)的成熟精子的超微结构。

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摘要

Using transmission and scanning electron microscopy, we have described the mature spermatozoon of the bivalve Gafrarium tumidum (Heterodonta, Veneridae, Circinae) for the first time. The spermatozoon of G. tumidum is the ect-aquasperm type. The head contains a slightly curved nucleus. At its apex is a short cone-shaped acrosome. The structure of the acrosome is typical of heterodont bivalves and two major components of the acrosome vesicle material can be distinguished. The midpiece is an annular band of five mitochondria which surround the centriole complex. Sperm ultrastructure of G. tumidum provides additional information for the existing Veneridae phylogeny.
机译:使用透射电子显微镜和扫描电子显微镜,我们首次描述了双壳Ga(Gaterrium tumidum)(Heterodonta,Veneridae,Circinae)的成熟精子。 G. tumidum的精子是ect-aquasperm类型。头部包含一个稍微弯曲的核。在其顶端是短圆锥形的顶体。顶体的结构是异齿双壳类动物的典型特征,并且可以区分出顶体囊泡材料的两个主要成分。中间部分是由五个线粒体组成的环形带,围绕着中心粒复合体。 G. tumidum的精子超微结构为现有的Veneridae系统发育提供了更多信息。

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