Oxidative responses in soybean foliage to herbivory by bean leaf beetle and three-cornered alfalfa hopper.

Reference Report for IND20428756

Title:	Oxidative responses in soybean foliage to herbivory by bean leaf beetle and three-cornered alfalfa hopper.
Authors:	Felton, G.W., Summers, C.B., Mueller, A.J.
Source:	J. Chem. Ecol. 1994, 20(3):639-650
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 earworm Helicoverpa zea. The contribution of these findings to emerging theories of insect-plant interactions is discussed.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

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