Overexpressed esterases in a fenvalerate resistant strain of the cotton bollworm, Helicoverpa armigera
Enhanced detoxification is the major mechanism responsible for pyrethroid resistance in Chinese populations of Helicoverpa armigera. Previous work has shown that enhanced oxidation contributes to resistance in the fenvalerate-selected Chinese strain, YGF. The current study provides evidence that enhanced hydrolysis by esterase isozymes also contributes to the resistance in this strain. The average esterase activity of third instar YGF larvae was 1.9-fold compared with that of a susceptible SCD...[Show more]
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|Source:||Insect Biochemistry and Molecular Biology|
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