Fernandez I, Benito J, Pardos F
Departamento de Biología Animal I, Facultad de Biología, Universidad Complutense, Madrid España.
Ann Parasitol Hum Comp. 1988;63(4):253-62. doi: 10.1051/parasite/1988634253.
The ultrastructure of the developing oocyst of Eimeria? beauchampi Leger and Duboscq, 1917 was studied from the ventral digestive epithelium of the hepatic region of Glossobalanus minutus (Enteropneusta). A possible building mechanism of the oocyst wall is deduced and discussed from the present data and the available literature. During oocyst wall formation a total of 5 membranes were observed at or near the surface of the parasite among which some wall-forming materials will be stored. The origin and fate of such wall-forming materials are discussed and compared with data from other coccidians. The apparently full-formed wall is made up of an outer, dense layer, a median layer showing a labyrinthic-tubular lattice substructure, and an inner, homogeneous and osmiophilic layer. A micropyle measuring 0.35 micron in diameter is also described.
对1917年由勒热和迪博斯克发现的博尚艾美球虫发育中的卵囊超微结构进行了研究，研究材料取自小型舌形虫（肠鳃纲）肝脏区域的腹侧消化上皮。根据现有数据和文献资料，推断并讨论了卵囊壁可能的形成机制。在卵囊壁形成过程中，在寄生虫表面或其附近共观察到5层膜，其中一些壁形成物质将储存在这些膜中。讨论了此类壁形成物质的来源和去向，并与其他球虫的数据进行了比较。明显已完全形成的壁由外层致密层、具有迷宫状管状晶格亚结构的中间层和内层均匀且嗜锇层组成。还描述了一个直径为0.35微米的微孔。
