Structure and Activity in Molluscicides II. Activity Assay of Catalase and Peroxidase in Snails

Abstract

Catalase and peroxidase, protoporphyrin enzymes present in snails and affected by molluscicidal agents, were studied in some species of snails of biological importance (<i>Biomphalaria</i> and <i>Bulinus</i> types, intermediate hosts for schistosomiasis, intestinal and renal, respectively). The activity values of these enzymes in snails infected with <i>miracidia</i> of <i>Schistosomes</i> were less than those for the noninfected ones. Also, determinations were run for snails of <i>Lymnaea</i> (intermediate host for cattle liver fluke, <i>Fasciola hepatica</i>) and <i>Physa</i> types.