Witaliński W
Z Mikrosk Anat Forsch. 1976;90(4):657-80.
The paper presents the results of ultrastructural studies on the spermiogenesis in the mite, Pergamasus viator Halaŝkova. The cysts containing 16 spermatids per cyst, are localized in the anterior part of the saccular gonad. The process of spermatid maturation has been divided into three stages: of the early spermatid, middle spermatid and late spermatid. The modifications of spermatid occuring during the spermiogenesis include: a change of cell shape, modifications of its organelles and formation of new structures like the superficial layer of cellular processes, striated bodies, granular bodies, flattened cisternae and canaliculi, central canaliculi, and stiff bands. Within the nucleus the chromatin condenses to threads or lamellae, to form subsequently several electron-dense granules. The remaining nucleoplasm is filled with an electron-dense material, which appears in the middle spermatid and gradually accumulates. The above modifications occuring in the course of spermiogenesis and their relation to the data available from the literature concerning the spermatogenesis of allied groups of animals are discussed in length.
本文介绍了对螨虫Pergamasus viator Halaŝkova精子发生的超微结构研究结果。每个囊肿含有16个精子细胞的囊肿位于囊状性腺的前部。精子细胞成熟过程分为三个阶段：早期精子细胞、中期精子细胞和晚期精子细胞。精子发生过程中精子细胞的变化包括：细胞形状的改变、细胞器的修饰以及新结构的形成，如细胞突起表层、横纹体、颗粒体、扁平池和小管、中央小管以及硬带。细胞核内染色质浓缩成细丝或薄片，随后形成几个电子致密颗粒。其余核质充满电子致密物质，这种物质出现在中期精子细胞中并逐渐积累。文中详细讨论了精子发生过程中发生的上述变化及其与有关动物相关类群精子发生的文献数据的关系。
