Shoukry A, Soliman B A
Suez Canal University, Ismailia, Egypt.
J Egypt Soc Parasitol. 1995 Aug;25(2):367-75.
Laboratory observations on the uptake of bancroftian microfilariae (mf.) by three Egyptian mosquito species revealed that microfilariae ingested by some tested species were badly damaged during ingestion. The foregut structures in Culex pipiens, Aedes caspius and Anopheles multicolor were investigated by light and scanning microscope techniques. In Ae. caspius which have well developed pharyngeal armatures, and An multicolor which have well developed cibarial armatures, high proportion of microfilariae were scored and damaged. Vice virsa, Cx. pipiens, considered as the main vector of bancroftian filariaris have neither developed pharyngeal nor cibarial pumps, the percentage of damaged mf was very small. The relationship between the injury of mf. in mosquito midgut and the presence of the foregut armatures was discussed.
对三种埃及蚊虫摄取班氏微丝蚴的实验室观察表明,一些受试蚊虫摄取的微丝蚴在摄取过程中受到严重损伤。采用光学显微镜和扫描显微镜技术研究了致倦库蚊、里海伊蚊和多色按蚊的前肠结构。在具有发育良好的咽骨片的里海伊蚊和具有发育良好的食窦骨片的多色按蚊中,大量微丝蚴被计数并受损。反之,被认为是班氏丝虫主要传播媒介的致倦库蚊既没有发育出咽泵也没有食窦泵,受损微丝蚴的比例非常小。讨论了蚊虫中肠内微丝蚴损伤与前肠骨片存在之间的关系。