TY - JOUR A1 - Schenkel, Denis A1 - Maciá-Vicente, Jose G. A1 - Bissell, Alexander A1 - Splivallo, Richard T1 - Fungi indirectly affect plant root architecture by modulating soil volatile organic compounds T2 - Frontiers in microbiology N2 - The plant-growth modulating effect of microbial volatile organic compounds (VOCs) has been demonstrated repeatedly. This has most often been performed by exposing plants to VOC released by microbes grown on nutrient rich media. Here, we used soil instead to grow fungi of the Fusarium genus and investigate how VOCs emitted by this system influenced the development of Arabidopsis plants. The volatile profiles of Fusarium strains grown in soil and malt extract were also compared. Our results demonstrate that distinct volatile signatures can be attributed to different Fusarium genetic clades but also highlight a major influence of the growth medium on volatile emission. Furthermore, all soil-grown Fusarium isolates increased primary root length in Arabidopsis by decreasing VOC concentrations in soil. This result represents a major paradigm shift in plant-microbe interactions since growth modulating effects have been attributed so far to the emission and not the consumption of volatile signals. KW - Fusarium KW - Arabidopsis KW - volatile organic compounds KW - plant-microbe interactions KW - soil VOCs Y1 - 2018 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/47903 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-479034 SN - 1664-302X N1 - Copyright © 2018 Schenkel, Maciá-Vicente, Bissell and Splivallo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. VL - 9 IS - Art. 1847 SP - 1 EP - 13 PB - Frontiers Media CY - Lausanne ER -