Laboratory of Experimental Zoology, Department of Zoology, Faculty of Biology, Herzen State Pedagogical University of Russia, Moyka River 48, Saint-Petersburg, 191186, Russia.
Parasitol Res. 2022 Jan;121(1):465-469. doi: 10.1007/s00436-021-07353-y. Epub 2021 Nov 25.
We performed histological and electron microscopic analysis of miracidia of Schistosoma mansoni in order to examine their germinal elements. In total, about 20 germinal cells at different stages of maturation were found. We described their ultrastructure and proposed a scheme of reproduction of mother sporocysts of S. mansoni based on our data and literature information. According to this scheme, the only germinal elements present in the miracidia are germinal cells (undifferentiated cells were not found). Regardless of their size and localisation, none of the germinal cells in the miracidia has undergone full differentiation. This process is completed after the metamorphosis of the larva into the sporocyst.
我们对曼氏血吸虫尾蚴进行了组织学和电子显微镜分析，以检查其生殖细胞成分。总共发现了大约 20 个处于不同成熟阶段的生殖细胞。我们描述了它们的超微结构，并根据我们的数据和文献信息提出了曼氏血吸虫母孢子生殖的方案。根据该方案，在尾蚴中仅存在生殖细胞（未发现未分化细胞）。无论其大小和位置如何，尾蚴中的任何生殖细胞都没有完全分化。该过程是在幼虫变态为孢子囊后完成的。
