中华双腔吸虫（Dicrocoelium　Chinensis　Tang　et　Tang，1978）（Trematoda：Digenea）卵子发生的超微结构研究  

ULTRASTRUCTURAL STUDIES ON OOGENESIS OF DICROCOELIUM CHINENSIS TANG ET TANG,1978(TREMATODA:DIGENEA)

作　　者：唐嘉玉[1] 

机构地区：[1]中国科学院水生生物研究所

出　　处：《寄生虫与医学昆虫学报》1996年第4期201-206,共6页Acta Parasitologica et Medica Entomologica Sinica

基　　金："金三角"基金

摘　　要：利用透射电镜技术观察了中华双腔吸虫（ＤｉｃｒｏｃｏｅｌｉｕｍｃｈｉｎｅｎｓｉｓＴａｎｇｅｔＴａｎｇ，１９７８）的卵巢结构和卵子发生过程，同时提出了划分复殖吸虫卵子发生过程的标准，总结了复殖吸虫卵子发生的一般规律以及中华双腔吸虫卵子发生的特有特征。此外比较分析了不同复殖吸虫的皮质颗粒特征，指出它在分类上可能有重要意义。中华双腔吸虫卵巢和卵子发生的超微结构与大多数复殖吸虫相似，但其卵巢中的各生殖细胞间有网状片层结构及一些颗粒、膜状碎片等支持和营养结构，还有退化的成熟卵母细胞。中华双腔吸虫的卵子发生分为卵原细胞、早期未成熟卵母细胞、晚期未成熟卵母细胞和成熟卵母细胞四个阶段，首次报道了成熟卵母细胞中的球状体。By means of TEM,the ultrastructure of ovary and oogenesis in Dicrocoelium chinensis is investigated.The principle of dividing the developmental stage of female germ cells in digenetic trematodes is suggested.The general pattern of oogenesis in the digenetic trematodes and the special characteristics in D.chinensis are concluded.After comparing the cortical granules in different digenetic trematodes,we suppose they might be represented as a significant mark in taxonomy of Digenea.The ultrastructure of ovary and oogenesis in D.chinensis is similar to that of most digenetic trematodes.But in ovary,there are the net like lamellar structure,granules,membranous debris and degenerated oocytes among germ cells.We suggested they might act as support and nutrition function.The development of oogenesis in D.chinensis can be divided into four stages,they are oogonium,early immature oocyte,late immature oocyte and mature oocyte.In mature oocyte,a single spherical body is described for the first time.

关 键 词：中华双腔吸虫 卵子发生 超微结构 

分 类 号：R383.2[医药卫生—医学寄生虫学]