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Influence of Soybean Leaf Extracts on Ester Cleavage in Cabbage and Soybean Loopers (Lepidoptera: Noctuidae)

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Midgut-mediated ester cleavage of p-nitrophenyl acetate increased in Trichoplusia ni (Hübner) larvae that were fed on diets containing extracts from resistant and susceptible soybean, Glycine max (L.) Merr., varieties. Activity ranged as follows: control < susceptible < resistant variety. The opposite trend was noted for ester cleavage by midguts of Pseudoplusia includens (Walker) larvae fed on the same diets, such that activity ranged as follows: control > susceptible > resistant variety. The use of the inhibitors piperonyl butoxide and S,S,S-tri-n-butyl phosphorotrithioate indicated that ester cleavage was primarily mediated by hydrolytic esterases.

Document Type: Research Article

Publication date: August 1, 1983

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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