摘要
本文用透射电镜观察我国大陆品系日本血吸虫子胞蚴前端、收缩区和扩张区的超微结构。发现子胞蚴前端存在体被凹陷区及括约肌的构造,同时可见神经细胞。这个子胞蚴精细分化区可能具有产孔的生理功能,尾蚴从产孔中逸出是非创伤性逸出功能的一种生理适应。并与曼氏血吸虫子胞蚴产孔的超微结构进行了比较。
The ulrrastructure of daughter sporocysts of Chinese mainland strain of Schistosama ja-ponicum was studied 4 months after infection of Oncomelania hupensis hupensis. It has revealed that well differentiated zones exist: an anterior zone, contacted zones without cerca-riae and dilated zones containing developing cercariae. There is an invagination of the tegument and a structure of sphincter at the anterior zone. The exterior tegument of the invagination which looks like a festoon is different from the interior one. However, well-developed microvilli enwrap all the surface of the invagination. Many nerve cells are found in anterior zone. It is postulated that this zone might have the function of a birth pore which is an adaptation to the emergence of cercariae without traumadsm.In addition, the ultrastructute of birth pores between S. japonicum and and S. mansoni was discussed and compared.
出处
《动物学报》
SCIE
CAS
CSCD
1989年第1期1-4,共4页
ACTA ZOOLOGICA SINICA
关键词
日本血吸虫
子胞蚴
超微结构
Schistosoma japonicum, Daughter sporocyst, Birth pore, Nerve cell, Ultra-structure.
