BAHR G F, ZEITLER E
J Cell Biol. 1964 May;21(2):175-89. doi: 10.1083/jcb.21.2.175.
The electron microscope has been used to determine the characteristic dimensions and the distribution of the dry mass in bull spermatozoa. The most important result is that all characteristic data are occurring in logarithmic distributions. Furthermore, no correlation between such parameters as head weight and tail weight or head length and tail length was found. The occurrence in logarithmic distributions and the non-correlation of parts in the assembly of a spermatozoon are considered to reflect significant biologic principles. Methodologically, a new procedure is added to quantitative electron microscopy permitting the recording of the mass cross-section (total mass per unit length) of an object. This approach makes possible determinations of the distribution and the total mass of very long and narrow structures.
电子显微镜已被用于确定公牛精子的特征尺寸和干质量分布。最重要的结果是所有特征数据都呈对数分布。此外,未发现诸如头部重量与尾部重量或头部长度与尾部长度等参数之间存在相关性。精子组装中各部分呈对数分布以及不相关被认为反映了重要的生物学原理。在方法上,定量电子显微镜增加了一种新程序,允许记录物体的质量横截面(每单位长度的总质量)。这种方法使得确定非常长且窄的结构的分布和总质量成为可能。