EFFECTS OF COEXPOSURE WITH ECHINOSTOMA CAPRONI AND SCHISTOSOMA MANSONI MIRACIDIA ON NEUTRAL AND POLAR LIPIDS OF BIOMPHALARIA GLABRATA AS DETERMINED BY HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY-DENSITOMETRY AND OBSERVATIONS ON SNAIL SURVIVAL AND FECUNDITY

摘要: High performance thin-layer chromatography (HPTLC)-densitometry was used to characterize and quantify neutral polar lipids in Biomphalaria glabrata snails subjected either Echinostoma caproni Schistosoma mansoni miracidia coexposure, or single exposure each of these trematode parasites. Observations on survival fecundity were made an unexposed population (2 cultures 25 each); a exposed exclusively S. mansoni(2 snails, 6 per snail); E. 10 one week later 25, mansonimiracidia snail). Each culture contained 800 mL artificial spring water; maintained at 25 ± 1°C fed boiled romaine lettuce ad libitum. A sample necropsied 2, 4, 6, 8 weeks post...