Related Experiment Video
Updated: May 5, 2026

Detached Leaf Assays to Simplify Gene Expression Studies in Potato During Infestation by Chewing Insect Manduca sexta
Published on: May 15, 2019
Oxidative responses in soybean foliage to herbivory by bean leaf beetle and three-cornered alfalfa hopper
G W Felton1, C B Summers, A J Mueller
1Department of Entomology, University of Arkansas, 72701, Fayetteville, Arkansas.
Abstract:
Variation in induced responses in soybean is shown to be dependent, in part, upon herbivore species. Herbivory by the phloem-feeding three-cornered alfalfa hopper caused increases in the activities of several oxidative enzymes including lipoxygenases, peroxidases, ascorbate oxidase, and polyphenol oxidase. Bean leaf beetle defoliation caused increased lipoxygenase activity, but had little effect upon peroxidase, polyphenol oxidase, ascorbate oxidase, or trypsin inhibitor levels in either field or greenhouse studies. In one field experiment, prior herbivory by the bean leaf beetle subsequently reduced the suitability of foliage to the corn earwormHelicoverpa zea. The contribution of these findings to emerging theories of insect-plant interactions is discussed.
Related Concept Videos
Responses to Drought and Flooding
Responses to Salt Stress
Responses to Heat and Cold Stress
Adaptations that Reduce Water Loss
Defenses Against Pathogens and Herbivores
Light Acquisition

