长尾蚴吸虫幼虫在菲律宾蛤仔的寄生部位及其组织化学的研究

本文报道长尾蚴吸虫幼虫在菲律宾蛤仔的寄生部位及其组织化学的研究，长尾蚴吸虫幼虫主要寄生于哈仔的生殖腺组织中，仅少部分进入生殖腺附近的消化腺，鳃等。受感染严重的蛤仔，其生殖腺的滤泡等组织被虫体占满并被耗尽，长尾蚴吸虫子胞蚴的胞壁及尾蚴的皮导主要含碱性蛋白质和粘蛋白，子胞蚴的胚球，尾蚴的吸盘，生殖原基，单细胞腺体主要ＤＮＡ阳性物质，排泄囊含丰富的碱性蛋白质；尾蚴体的中部含有呈颗粒团的粘蛋白和抗淀粉酶的

THE PARASITIZED LOCATION OF LARVAL CERCARIA ELEGANS TANG 1992 IN RUDITAPES PHILIPPINARUM AND ITS HISTOCHEMISTRY

This paper reports the results of studies on the organs of parasitized clam by Cercaria el- egans Tang (1992)including the histochemical composition of the larva. Most of the cercariae entered the genital glands of the clam, while only a few invade the digestive organ and its surrounding area. The genital gland is damaged most seriously, being exhausted and extensively occupied by the invading cercariae. In this caes the clam's growth is affected. The main components of the histochemical composition on some larval organs of Cercaria elegans are being noticed as follows: (1) Any wall of daughter sporocyst and tegument of the cercaria contain basic protein and mucoprotein. (2) Germ balls in daughter sporocyst, suckers of the cercaria, germinal primordia and unicellular gland of the cercaria contain DNA positive substances. (3) Excretory bladder of cercaria contain much basic protein. (4) The mid-lateral amd mid-dorsal of cercarial body contain granule-shaped masses mucoprotein and diastase-fast PAS positive substances.