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Science 17 June 1977:
Vol. 196. no. 4296, pp. 1349 - 1352
DOI: 10.1126/science.196.4296.1349
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Articles

Herbivore-Plant Interactions: Mixed-Function Oxidases and Secondary Plant Substances

L. B. BRATTSTEN 1, C. F. WILKINSON 1, and T. EISNER 2

1 Department of Entomology, Cornell University, Ithaca, New York 14853
2 Section of Neurobiology and Behavior, Cornell University

The mixed-function oxidases of a polyphagous insect larva (the southern armyworm, Spodoptera eridania) were found to be induced by a diversity of secondary plant substances. The induction proceeds rapidly and in response to a small quantity of secondary substance. Following induction, the larva is less susceptible to dietary poisoning. It is argued that mixed-function oxidases play a major role in protecting herbivores against chemical stress from secondary plant substances.

Submitted on February 18, 1977
Revised on March 18, 1977


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