Maretta M
Cell Tissue Res. 1977 Jan 12;176(2):265-73. doi: 10.1007/BF00229467.
Developmental changes in the formation of the centrioles and flagellum during spermiogenesis in the rooster and drake were studied. Changes in the length and thickness of the wall of the centrioles were observed from an early stage of spermatid development. Before the proximal centriole is attached to the nucleus microtubules were observed near the centrioles joined to them. At this stage of spermatid development changes on the nuclear membrane were observed at a place where the proximal centriole is attached to the nucleus. At the later stage of spermatid differentiation three to five dense extensions in the space of the nuclear invagination and dense bodies or granules near the distal centriole were present. The anterior part of the newly formed flagellum is covered by a cytoplasmic membrane displaying extension which is approximately 1.3 mum long. Slight differences between the two species were observed.
对公鸡和公鸭精子发生过程中中心粒和鞭毛形成的发育变化进行了研究。从精子细胞发育的早期阶段就观察到中心粒壁的长度和厚度的变化。在近端中心粒附着到细胞核之前，在与它们相连的中心粒附近观察到微管。在精子细胞发育的这个阶段，在近端中心粒附着到细胞核的位置观察到核膜上的变化。在精子细胞分化的后期，在核内陷空间中有三到五个致密延伸，并且在远端中心粒附近有致密体或颗粒。新形成的鞭毛的前部被显示出约1.3微米长延伸的细胞质膜覆盖。观察到这两个物种之间存在细微差异。
