Authors: V B Yadwad V L Kallapur
Publish Date: 1988/06/01
Volume: 13, Issue: 2, Pages: 139-146
Abstract
Glutathione Stransferase activity was determined in the lepidopteran insect speciesAchaea janata during larval pupal and adult stages following treatment with sublethal and lethal doses of fenitrothion Both doses of insecticide produced significant induction of enzyme activity The rate of induction of enzyme activity was not significantly different in insects that received sublethal and lethal doses of insecticide Enzyme activity in the different stages of insecticidetreated insects was in the order pupa adult larva However the inducing effect of the insecticide was higher in larvae than in pupae and adult In the absence of induction the level of enzyme was as much as 3 times higher in midgut tissue than in carcass In larvae treated with sodium barbitone along with fenitrothion the knockdown effect of the insecticide was delayed This was attributed to the increased induction of glutathione Stransferase in the larvae treated with sodium barbitone The level of reduced glutathione a ratelimiting factor in the induction of glutathione Stransferase changed in a cyclic manner in insecticidetreated larvae
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