摘要
华支睾吸虫尾蚴体部呈圆筒形,口吸盘明显大于腹吸盘。体表布满小棘,口吸盘上有4行较大的棘,其中第1行的最大,其余3行的依次变小,其数目分别约为12、18、19和18个。尾部细长,表面有由皮层形成的横行褶襞,腹面尚有数条纵行褶襞。尾部有膜状的背鳍和腹鳍。感觉器有3型:具长纤毛或短纤毛的感觉乳突、感觉小窝和中心具结节的环形乳突。
The surface structure of Clonorchis sinensis cercariae was observed under scanning electron microscope.The cercaria was of the parapleuro-lophocercous type. The measurements of the cercariae were as follows: body 137-240 × 62-90μm, tail 320-470 × 21-34μm, oral sucker 27-46 × 23-33μm. The ventral sucker was incompletely developed and much smaller than the oral one. The whole body surface was covered with backward pointing spines. Four horizontal rows of oral spines were found around the mouth opening of the oral sucker. These spines diminished in size with the distance of the rows from the opening and their numbers were 12,18, 19 and 18 respectively. Transverse and longitudinal plicae formed from tegument were found on the surface of the tail, being in connection with dorsal and ventral fins along posterior half of the tail. Many sensory structures or papillae were observed on the body. They were of three different types: 1) papillae with long or short cilia distributed widely on the body surface and around the mouth opening, the number of papillae with cilia on the body surface being greater than that described by Komiya et al(1940); 2) a few sensory fossa on the tail, measuring 1.0×0.6μm; 3) a few ring-type papillae with knob on the body surface with pore of 0.5μm in diameter (FigS, 1-8).
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
1991年第3期213-215,共3页
Chinese Journal of Parasitology and Parasitic Diseases
关键词
华支睾吸虫
尾蚴
扫描电镜
Clonorchis sinensis, cercaria, scanning electron microscopy.
