Bernard R T, Hodgson A N
Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa.
Gamete Res. 1988 Sep;21(1):41-50. doi: 10.1002/mrd.1120210106.
The structure of the spermatozoon of the long-fingered bat (Miniopterus schreibersii) was studied using transmission electron microscopy. The neck is characterized by two asymmetrically arranged features that allow the orientation of sections in different planes and therefore aid the interpretation of the structure. There are six segmented columns, two major and four minor, in the anterior 79% of the neck, and it is only posterior to this that the major columns split. One major column is associated with doublets 9, 1, and 2, and the other major column, with doublets 5 and 6. The proximal centriole is surrounded by the capitulum and segmented columns, and the distal centriole persists and is apparent in both longitudinal and transverse sections. The central pair of microtubules pass through the distal centriole and terminate at the proximal centriole. A line drawn through the two central microtubules divides the head into left and right halves. Development of the neck begins during early spermiogenesis at which time the two centrioles are associated with the production of the capitulum, segmented columns, and axoneme complex.
利用透射电子显微镜对长指蝙蝠（Miniopterus schreibersii）精子的结构进行了研究。颈部的特征是有两个不对称排列的结构，这使得切片能够在不同平面取向，从而有助于对结构的解读。在颈部前79%的区域有六根分段柱状结构，两根主要的和四根次要的，只有在此之后主要柱状结构才会分开。一根主要柱状结构与双联体9、1和2相关联，另一根主要柱状结构与双联体5和6相关联。近端中心粒被小头和分段柱状结构包围，远端中心粒持续存在，在纵切和横切中均可见。中央的一对微管穿过远端中心粒并在近端中心粒处终止。通过两根中央微管画一条线可将头部分为左右两半。颈部的发育在精子发生早期开始，此时两个中心粒与小头、分段柱状结构和轴丝复合体的产生有关。
