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  Plant defense and herbivore counter-defense: benzoxazinoids and insect herbivores

Wouters, F. C., Blanchette, B., Gershenzon, J., & Giddings Vassão, D. (2016). Plant defense and herbivore counter-defense: benzoxazinoids and insect herbivores. Phytochemistry Reviews, 15(6), 1127-1151. doi:10.1007/s11101-016-9481-1.

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http://dx.doi.org/10.1007/s11101-016-9481-1 (Publisher version)
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Wouters, Felipe C.1, 2, Author              
Blanchette, Blair1, Author              
Gershenzon, Jonathan1, Author              
Giddings Vassão, Daniel1, Author              
Affiliations:
1Department of Biochemistry, Prof. J. Gershenzon, MPI for Chemical Ecology, Max Planck Society, ou_421893              
2IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              

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 Abstract: Benzoxazinoids are a class of indole-derived plant chemical defenses comprising compounds with a 2-hydroxy-2H-1,4-benzoxazin-3(4H)-one skeleton and their derivatives. These phytochemicals are widespread in grasses, including important cereal crops such as maize, wheat and rye, as well as a few dicot species, and display a wide range of antifeedant, insecticidal, antimicrobial, and allelopathic activities. Although their overall effects against insect herbivores are frequently reported, much less is known about how their modes of action specifically influence insect physiology. The present review summarizes the biological activities of benzoxazinoids on chewing, piercing-sucking, and root insect herbivores. We show how within-plant distribution modulates the exposure of different herbivore feeding guilds to these defenses, and how benzoxazinoids may act as toxins, feeding deterrents and digestibility-reducing compounds under different conditions. In addition, recent results on the metabolism of benzoxazinoids by insects and their consequences for plant-herbivore interactions are addressed, as well as directions for future research.

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 Dates: 2016-10-212016-11-052016
 Publication Status: Published in print
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 Identifiers: Other: GER473
DOI: 10.1007/s11101-016-9481-1
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Title: Phytochemistry Reviews
Source Genre: Journal
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Pages: - Volume / Issue: 15 (6) Sequence Number: - Start / End Page: 1127 - 1151 Identifier: ISSN: 1568-7767
CoNE: https://pure.mpg.de/cone/journals/resource/111022269532048