Soliman B A
Department of Zoology, Faculty of Education, Suez Canal University, El Arish City, North Sinai Governorate, Egypt.
J Egypt Soc Parasitol. 1995 Apr;25(1):207-12.
The exsheathment of ingested microfilariae (mf) of Wuchereria bancrofti in their vector Culex. (Cx.) pipiens and in a refractory mosquito species Aedes (Ae.) caspius was assessed. No exsheathed mf were encountered in the mid gut of tested mosquitoes, while they were observed in abdomen and thoracic muscles. All exsheathed mf migrated from the mid gut of both tested species. The lowest percentage of ingested mf was recorded in the mid gut of Cx. pipiens and the thoracic muscles of Ae. caspius one day post feeding. On the other hand, 94.2% out of the exsheathed mf reached the thoracic region of Cx. pipiens and one-tenth of this proportion was observed in the thorax of Ae. caspius. Failure of a large percentage of mf to exsheath after being ingested in the Ae. caspius indicates inefficient vector ability to support the filarial development to the infective stage.
对班氏吴策线虫摄入的微丝蚴（mf）在其媒介致倦库蚊（Cx. pipiens）和抗性蚊虫物种里海伊蚊（Ae. caspius）体内的脱鞘情况进行了评估。在受试蚊虫的中肠中未发现脱鞘的微丝蚴，而在腹部和胸部肌肉中观察到了它们。所有脱鞘的微丝蚴均从两种受试物种的中肠迁移而来。喂食后一天，致倦库蚊中肠和里海伊蚊胸部肌肉中摄入的微丝蚴比例最低。另一方面，94.2%的脱鞘微丝蚴到达了致倦库蚊的胸部区域，而在里海伊蚊胸部观察到的比例为该比例的十分之一。大量微丝蚴在被里海伊蚊摄入后未能脱鞘，这表明该蚊虫作为媒介支持丝虫发育至感染阶段的能力较低。
