D. Fournier et A. Mutero, MODIFICATION OF ACETYLCHOLINESTERASE AS A MECHANISM OF RESISTANCE EO INSECTICIDES, Comparative biochemistry and physiology. Part C, Pharmacology toxicology & endocrinology, 108(1), 1994, pp. 19-31
In insects, acetylcholinesterase is essential for life and its inhibit
ion by organophosphorus or carbamate insecticides is lethal. Extensive
use of these insecticides to control insect pests has led to resistan
t enzymes, less inhibited than the wild type enzyme. Some mutations re
sponsible for resistance have been identified. The resulting mutated p
roteins present new catalytic properties towards substrates and inhibi
tors. The presence of an altered enzyme has several consequences on th
e genetics of resistance and maintenance of resistant alleles in natur
al populations.