Swiderski Z
Instytut Parazytologii im. W. Stefańskiego PAN, Warszawa.
Wiad Parazytol. 1996;42(1):81-93.
The origin, differentiation and functional ultrastructure of egg envelopes surrounding developing and mature miracidia of Schistosoma mansoni and that of developing and mature coracidia of Bothriocephalus clavibothrium have been examined by means of electron microscopy and cytochemistry. Results obtained on these two species were compared with data from our previous studies on the ultrastructure of egg envelopes in different cyclophyllidean (Hymenolepididae, Taeniidae, Anoplocephalidae, Davaineidae) and proteocephalidean cestodes. In the mature infective egg, the three main egg envelopes (the egg-shell, and the outer and inner envelope) that surround the larvae (miracidia of Digenea, coracidia of Pseudophyllidea, and hexacanths of Cyclophyllidea and Proteocephalidea), show evident similarities in their origin, functional ultrastructure and chemical composition. Conclusions of this comparison, concerning analogy and homology in egg envelopes of trematodes and cestodes, are drawn and discussed.
利用电子显微镜和细胞化学方法，对曼氏血吸虫发育中和成熟的毛蚴以及棒槽头绦虫发育中和成熟的钩球蚴周围卵膜的起源、分化及功能超微结构进行了研究。将这两个物种的研究结果与我们之前关于不同圆叶目（膜壳科、带科、裸头科、戴维科）和原头科绦虫卵膜超微结构的研究数据进行了比较。在成熟的感染性虫卵中，围绕幼虫（复殖吸虫的毛蚴、假叶目的钩球蚴以及圆叶目和原头科的六钩蚴）的三个主要卵膜（卵壳、外层卵膜和内层卵膜）在其起源、功能超微结构和化学成分上表现出明显的相似性。得出并讨论了关于吸虫和绦虫卵膜类比和同源性比较的结论。
