Potential toxicity of an insecticide of the family of carbamates on a bioindicator model of the pollution the earthworm Octodrilus complanatus (Oligochaeta, Lumbricidae)

Zeriri Ibtissem, Tadjine Aicha

Abstract

In our study, we examined the effect of an insecticide the methomyl which belongs to the family of carbamates on a bioindicator of the pollution earthworm Octodrilus complanatus (Oligochaeta, Lumbricidae) through the follow-up of certain biomarkers (GSH, GST , CAT, MDA). Our results highlight a modification of the metabolism of earthworms Octodrilus complanatus through an increase of the content total proteins. A disturbance of the rate of glutathione reduces GSH associated with increased of the activation glutathione S-transferase (GST). At the same time we noted an increase of the catalase activity (CAT) and of the rate of MDA after an exposure of earthworms to the methomyl.