[Chemicotaxonomic study of the genus Echinostoma: comparison of a strain isolated in the Cameroon (E. sp.) and 2 African species (E. caproni and E. togoensis)].

A comparative enzymatic study is carried out on adults of three species of the genus Echinostoma (E. caproni, E. togoensis, E. sp.). Amongst 23 enzymes tested by starch gel electrophoresis, Pgm and Pgi are characterised by different zymogrammes in each species. Agarose and polyacrylamide isoelectrophoresis focusing define isoenzyme genetic structures: Pgm is coded by three loci, Pgi is coded by one locus. Pgm polymorphism allows us to extend this work to other experimental or natural stocks.