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  Specificity of herbivore defense responses in a woody plant, black poplar (Populus nigra)

Fabisch, T., Gershenzon, J., & Unsicker, S. (2019). Specificity of herbivore defense responses in a woody plant, black poplar (Populus nigra). Journal of Chemical Ecology, 45(2), 162-177. doi:10.1007/s10886-019-01050-y.

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http://dx.doi.org/10.1007/s10886-019-01050-y (Publisher version)
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 Creators:
Fabisch, Thomas1, 2, Author              
Gershenzon, Jonathan1, Author              
Unsicker, Sybille1, 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: The specificity of woody plant defense responses to different attacking herbivores is poorly known. We investigated the responses of black poplar (Populus nigra) to leaf feeding by three lepidopteran species (Lymantria dispar, Laothoe populi and Amata mogadorensis) and two leaf beetle species (Phratora vulgatissima and Chrysomela populi). Of the direct defenses monitored, increases in trypsin protease inhibitor activity and the salicinoid salicin were triggered by herbivore damage, but this was not herbivore-specific. Moreover, the majority of leaf salicinoid content was present constitutively and not induced by herbivory. On the other hand, volatile emission profiles did vary among herbivore species, especially between coleopterans and lepidopterans. Monoterpenes and sesquiterpenes were induced in damaged and adjacent undamaged leaves, while the emission of green leaf volatiles, aromatic and nitrogen-containing compounds (known to attract herbivore enemies) was restricted to damaged leaves. In conclusion, indirect defenses appear to show more specific responses to attacking herbivores than direct defenses in this woody plant.

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 Dates: 2019-01-212019-02-212019
 Publication Status: Published in print
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 Identifiers: Other: GER553
DOI: 10.1007/s10886-019-01050-y
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Title: Journal of Chemical Ecology
Source Genre: Journal
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Publ. Info: New York : Plenum Pub. Corp.
Pages: - Volume / Issue: 45 (2) Sequence Number: - Start / End Page: 162 - 177 Identifier: ISSN: 0098-0331
CoNE: https://pure.mpg.de/cone/journals/resource/954925466258