Nagy F
Department of Anatomy, Wright State University School of Medicine, Dayton, Ohio 45435.
J Submicrosc Cytol Pathol. 1994 Oct;26(4):533-44.
Spermatozoa of the Siberian hamster were examined using transmission and scanning electron microscopy. The sperm are approximately 119 microns in length and exhibit a falciform head typical of murine rodents. A rod-like structure runs almost the entire length of the subacrosomal space within the subacrosomal cytoskeleton. Scrolls of redundant nuclear membrane are consistently asymmetric on concave and convex sides of the sperm head with the convex side presenting much more elaborate whorls. Mitochondria in the middle piece number approximately 133 pairs and present either one or two distinct cross-sectional profiles. Determining the number of mitochondrial pairs is presented as a means of distinguishing among the various species or subspecies of Phodopus. Viewed in longitudinal section, the annulus also presents two different configurations; one profile is cuneiform, the other semilunar. The axonemal complex is typical of most rodent sperm flagellae. Dense fibers 1, 5 and 6 are substantially larger and fiber 9 is somewhat larger in diameter than the rest.
利用透射电子显微镜和扫描电子显微镜对西伯利亚仓鼠的精子进行了检查。精子长度约为119微米，呈现出鼠类啮齿动物典型的镰状头部。一个杆状结构几乎贯穿顶体下细胞骨架内顶体下空间的全长。多余核膜的卷轴在精子头部的凹面和凸面始终不对称，凸面呈现出更为复杂的螺旋。中段的线粒体约有133对，呈现出一种或两种不同的横截面形态。确定线粒体对的数量是区分不同种或亚种毛足鼠的一种方法。从纵切面看，环也呈现出两种不同的形态；一种形态是楔形，另一种是半月形。轴丝复合体是大多数啮齿动物精子鞭毛的典型特征。致密纤维1、5和6明显更大，纤维9的直径比其他纤维稍大。
