The ultrastructure of the foregut and its influence on bancroftian microfilariae ingestion in three Egyptian mosquito species.
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.
Shoukry
A
A
Suez Canal University, Ismailia, Egypt.
Soliman
B A
BA
D000330:Aedes; D000818:Animals; D000852:Anopheles; D003465:Culex; D004064:Digestive System / Q000473:pathology / Q000648:ultrastructure*; D004534:Egypt; D006801:Humans; D008842:Microfilariae / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning