Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 533403
Title Calling from distance : attraction of soil bacteria by plant root volatiles
Author(s) Schulz-Bohm, Kristin; Gerards, Saskia; Hundscheid, Maria; Melenhorst, Jasper; Boer, Wietse de; Garbeva, Paolina
Source ISME Journal 12 (2018). - ISSN 1751-7362 - p. 1252 - 1262.
DOI https://doi.org/10.1038/s41396-017-0035-3
Department(s) Chair Soil Biology and Biological Soil Quality
Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract Plants release a wide set of secondary metabolites including volatile organic compounds (VOCs). Many of those compounds are considered to function as defense against herbivory, pests, and pathogens. However, little knowledge exists about the role of belowground plant VOCs for attracting beneficial soil microorganisms. We developed an olfactometer system to test the attraction of soil bacteria by VOCs emitted by Carex arenaria roots. Moreover, we tested whether infection of C. arenaria with the fungal pathogen Fusarium culmorum modifies the VOCs profile and bacterial attraction. The results revealed that migration of distant bacteria in soil towards roots can be stimulated by plant VOCs. Upon fungal infection, the blend of root VOCs changed and specific bacteria with antifungal properties were attracted. Tests with various pure VOCs indicated that those compounds can diffuse over long distance but with different diffusion abilities. Overall, this work highlights the importance of plant VOCs in belowground long-distance plant–microbe interactions.
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