Amor M J, Durfort M
Department of Biochemistry and Physiology, Faculty of Biology, University of Barcelona, Spain.
Mol Reprod Dev. 1990 Apr;25(4):357-63. doi: 10.1002/mrd.1080250408.
Atypical spermatogenesis in Murex brandaris occurs in specific areas of the testis. In the early stages, a large nucleus is apparent, together with highly electrodense drops of chromatin spread through the caryoplasm. Many mitochondria are observed at one point of the cytoplasm, and numerous centrioles appear. In the following stages, vacuolization and degeneration of the chromatin are apparent, producing half moon-shaped chromatinic bodies called "caryomerites." Some degeneration of the chondrioma occurs too. Later, the chromatin degenerates and the centrioles produce cilia, while the Golgi body, highly secretory at this stage, produces electrodense PAS- as well as Thiery-positive granules. Moreover, a vermiform-shaped anuclear ciliated cell with numerous electrodense cytoplasmic granules is observed in the M. brandaris atypical spermatozoon.
紫螺的非典型精子发生发生在睾丸的特定区域。在早期阶段，可见一个大细胞核，同时有高度电子致密的染色质滴散布于核质中。在细胞质的某一点观察到许多线粒体，并且出现大量中心粒。在随后的阶段，染色质的空泡化和退化明显，产生半月形的染色质体，称为“核粒”。线粒体瘤也会发生一些退化。后来，染色质退化，中心粒产生纤毛，而在此阶段高度分泌的高尔基体产生电子致密的过碘酸希夫反应（PAS）以及蒂埃里阳性颗粒。此外，在紫螺的非典型精子中观察到一种蠕虫状的无核纤毛细胞，带有许多电子致密的细胞质颗粒。
