ISSN:
1573-1561
Keywords:
Soybean
;
lipoxygenase
;
peroxidase
;
polyphenol oxidase
;
trypsin inhibitor
;
ascorbate oxidase
;
oxidative stress
;
Lepidoptera
;
Noctuidae
;
Helicoverpa zea
;
corn earworm
;
Cerotoma trifurcata
;
bean leaf beetle
;
Coleoptera
;
Chrysomelidae
;
Spissistilus festinus
;
three-cornered alfalfa hopper
;
Homoptera
;
Membracidae
;
induced resistance
;
interspecific competition
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02059604
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