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  Aboveground herbivory induced jasmonates disproportionately reduce plant reproductive potential by facilitating root nematode infestation

Machado, R. A. R., Arce, C. C. M., McClure, M. A., Baldwin, I. T., & Erb, M. (2018). Aboveground herbivory induced jasmonates disproportionately reduce plant reproductive potential by facilitating root nematode infestation. Plant, Cell and Environment, 41(4), 797-808. doi:10.1111/pce.13143.

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https://doi.org/10.1111/pce.13143 (Publisher version)
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 Creators:
Machado, Ricardo A. R.1, Author              
Arce, Carla C. M.2, Author              
McClure, Michael A., Author
Baldwin, Ian Thomas1, Author              
Erb, Matthias2, Author              
Affiliations:
1Department of Molecular Ecology, Prof. I. T. Baldwin, MPI for Chemical Ecology, Max Planck Society, ou_24029              
2Research Group Dr. M. Erb, Shoot Root Communication, Department of Molecular Ecology, Prof. I. T. Baldwin, MPI for Chemical Ecology, Max Planck Society, ou_896545              

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 Abstract: Different plant feeders, including insects and parasitic nematodes, can influence each other by triggering systemic changes in their shared host plants. In most cases, however, the underlying mechanisms are unclear, and the consequences for plant fitness are not well understood. We studied the interaction between leaf feeding Manduca sexta caterpillars and root parasitic nematodes in Nicotiana attenuata. Simulated M. sexta attack increased the abundance of root parasitic nematodes in the field and facilitated Meloidogyne incognita reproduction in the glasshouse. Intact jasmonate biosynthesis was found to be required for both effects. Flower counts revealed that the jasmonate‐dependent facilitation of nematode infestation following simulated leaf attack reduces the plant's reproductive potential to a greater degree than would be expected from the additive effects of the individual stresses. This work reveals that jasmonates mediate the interaction between a leaf herbivore and root parasitic nematodes and illustrates how plant‐mediated interactions can alter plant's reproductive potential. The selection pressure resulting from the demonstrated fitness effects is likely to influence the evolution of plant defense traits in nature.

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 Dates: 2018-01-082018-01-122018-04
 Publication Status: Published in print
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 Identifiers: Other: ITB580
DOI: 10.1111/pce.13143
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Title: Plant, Cell and Environment
  Other : Plant, Cell & Environment
Source Genre: Journal
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Publ. Info: Oxford, England : Blackwell Science
Pages: - Volume / Issue: 41 (4) Sequence Number: - Start / End Page: 797 - 808 Identifier: ISSN: 0140-7791
CoNE: https://pure.mpg.de/cone/journals/resource/954925471334