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  Immune modulation enables a specialist insect to benefit from antibacterial withanolides in its host plant

Barthel, A., Vogel, H., Pauchet, Y., Pauls, G., Kunert, G., Groot, A. T., et al. (2016). Immune modulation enables a specialist insect to benefit from antibacterial withanolides in its host plant. Nature Communications, 7: 12530. doi:10.1038/ncomms12530.

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http://dx.doi.org/10.1038/ncomms12530 (Publisher version)
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 Creators:
Barthel, Andrea1, 2, Author              
Vogel, Heiko1, Author              
Pauchet, Yannick1, Author              
Pauls, Gerhard2, 3, Author              
Kunert, Grit4, Author              
Groot, Astrid T.1, Author              
Boland, Wilhelm3, Author              
Heckel, David G.1, Author              
Heidel-Fischer, Hanna M.1, Author              
Affiliations:
1Department of Entomology, Prof. D. G. Heckel, MPI for Chemical Ecology, Max Planck Society, ou_421895              
2IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              
3Department of Bioorganic Chemistry, Prof. Dr. W. Boland, MPI for Chemical Ecology, Max Planck Society, ou_24028              
4Statistical Service, Dr. Grit Kunert, MPI for Chemical Ecology, Max Planck Society, ou_3171479              

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 Abstract: The development of novel plant chemical defenses and counter adaptations by herbivorous insect could continually drive speciation, producing more insect specialists than generalists. One approach to test this hypothesis is to compare closely related generalist and specialist species to reveal the associated costs and benefits of these different adaptive strategies. We use the specialized moth Heliothis subflexa, which feeds exclusively on plants in the genus Physalis, and its close generalist relative H. virescens. Specialization on Physalis plants necessitates the ability to tolerate withanolides, the secondary metabolites of Physalis species that are known to have feeding deterrent and immune inhibiting properties for other insects. Here we find that only H. subflexa benefits from the antibacterial properties of withanolides, and thereby gains a higher tolerance of the pathogen Bacillus thuringiensis. We argue that the specialization in H. subflexa has been guided to a large extent by a unique role of plant chemistry on ecological immunology.

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 Dates: 2016-07-112016-08-262016
 Publication Status: Published in print
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 Identifiers: Other: HEC346
DOI: 10.1038/ncomms12530
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 12530 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723