Impact of the photosensitizers copper and magnesium chlorophyllin on biological and biochemical parameters of Bulinus truncatus snail

Bulinus truncatus snail is the intermediate host of Schistosoma haematobium, which causes serious damage to urinary system infected patients. To control it in its rapid interruption and/or elimination disease transmission would be efficient. Copper chlorophyllin (Cu-chl) and magnesium (Mg-chl); two photosensitizers used several biological applications, were bio-assayed against B. snails.  Mg-chl proved more toxic snails than Cu-chl; their LC90 values 516.7 668.9 ppm, respectively. The sub lethal concentrations each photosensitizer significantly suppressed fecundity (Mx) reproductive rate (R0) treated snails, could partially attributed recorded disturbances biochemical parameters. reduction rates R0 for with LC25 Cu-chl 83.5% 50.8%, Moreover, these exerted marked histological changes hermaphrodite gland where spermatogonia oogonia acini degenerated, while connective tissue was disintegrated. Both exhibited effect on interfered parameters that negatively interrupt S. haemeatobium. Therefore, both chemicals considered program this parasite being cheap environmentally safe.