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Determinants of Deadwood-Inhabiting Fungal Communities in Temperate Forests: Molecular Evidence From a Large Scale Deadwood Decomposition Experiment

Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany
Purahong, Witoon;
Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany ; German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
Wubet, Tesfaye;
Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany ; Department of Ecology, Technical University of Kaiserslautern, Kaiserslautern, Germany
Lentendu, Guillaume;
GND
1139391372
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Brunswick, Germany ; Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany
Hoppe, Björn;
Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany
Jariyavidyanont, Katalee;
Affiliation
Department of Biology and Environmental Sciences, International Institute Zittau, Technische Universität Dresden, Zittau, Germany
Arnstadt, Tobias; Baber, Kristin; Otto, Peter;
Affiliation
Department of Biology and Environmental Sciences, International Institute Zittau, Technische Universität Dresden, Zittau, Germany
Kellner, Harald;
Affiliation
Department of Biology and Environmental Sciences, International Institute Zittau, Technische Universität Dresden, Zittau, Germany
Hofrichter, Martin;
Affiliation
Department of Systematic Botany and Functional Biodiversity, Institute of Biology, University of Leipzig, Leipzig, Germany
Bauhus, Jürgen;
Affiliation
Terrestrial Ecology Research Group, Department of Ecology and Ecosystem Management, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
Weisser, Wolfgang W.;
Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany
Krüger, Dirk;
Affiliation
Max Planck Institute for Biogeochemistry, Jena, Germany
Schulze, Ernst-Detlef;
Affiliation
Chair of Silviculture, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg im Breisgau, Germany ; Biosphere Reserve Vessertal-Thuringian Forest, Schmiedefeld am Rennsteig, Germany
Kahl, Tiemo;
Affiliation
Department of Soil Ecology, Helmholtz Centre for Environmental Research – UFZ, Halle, Germany ;
Buscot, François

Despite the important role of wood-inhabiting fungi (WIF) in deadwood decomposition, our knowledge of the factors shaping the dynamics of their species richness and community composition is scarce. This is due to limitations regarding the resolution of classical methods used for characterizing WIF communities and to a lack of wellreplicated long-term experiments with sufficient numbers of tree species. Here, we used a large scale experiment with logs of 11 tree species at an early stage of decomposition, distributed across three regions of Germany, to identify the factors shaping WIF community composition and Operational Taxonomic Unit (OTU) richness using next generation sequencing. We found that tree species identity was the most significant factor, corresponding to (P < 0.001) and explaining 10% (representing 48% of the explainable variance) of the overall WIF community composition. The next important group of variables were wood-physicochemical properties, of which wood pH was the only factor that consistently corresponded to WIF community composition. For overall WIF richness patterns, we found that approximately 20% of the total variance was explained by wood N content, location, tree species identity and wood density. It is noteworthy that the importance of determinants of WIF community composition and richness appeared to depend greatly on tree species group (broadleaved vs. coniferous) and it differed between the fungal phyla Ascomycota and Basidiomycota.

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License Holder: © 2018 Purahong, Wubet, Lentendu, Hoppe, Jariyavidyanont, Arnstadt, Baber, Otto, Kellner, Hofrichter, Bauhus, Weisser, Krüger, Schulze, Kahl and Buscot.

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