Inducement of miracidia-immobilizing substance in the hemolymph of Biomphalaria glabrata.

摘要: Abstract Lie K. J. , Jeong H. and Heyneman D. 1980. Inducement of miracidia-immobilizing substance in the hemolymph Biomphalaria glabrata . Intemational Journal for Parasitology 10 : 183–188. More than 85% echinostome-infected albino B. laboratory strain snails develop substance(s) (MIS) hemolymph, while less 5% control uninfected show this ability. Snails infected with Echinostoma lindoense a strong miracidial immobilizing test (MIT) when homologous miracidia are exposed to moderate response E. liei Paryphostomum segregatum used. Infection paraensei results high level MIS miracidia, one P. weak is tested against as well miracidia. induces MIT whereas only was observed using or gives reaction species, S. mansoni fails induce that shows any parasites tested. Production temporary. It begins day postexposure, reaches its maximum 10–14 days declines preinfection several weeks later. irradiated also temporary production MIS. Uninfected tissue-extract MIS, which especially digestive gland extracts However, these give little no evidence