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Soil-wood interactions: Influence of decaying coniferous and broadleaf logs on composition of soil fungal communities
Institution:1. Netherlands Institute of Ecology (NIOO-KNAW), Department of Microbial Ecology, Droevendaalsesteeg 10, 6708 PB Wageningen, The Netherlands;2. Wageningen University, Department of Soil Quality, Droevendaalsesteeg 4, Building 104, 6708 PB Wageningen, The Netherlands;1. Laboratory of Forest Ecology, Graduate School of Agricultural Science, Tohoku University, 232-3 Yomogida, Naruko, Osaki, Miyagi 989-6711, Japan;2. School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK;3. Yamagata Prefectural Museum, 1-8 Kajo-machi, Yamagata-shi, Yamagata 990-0826, Japan;1. University of Regensburg, Institute of Plant Sciences, Chair of Ecology and Conservation Biology, D-93040 Regensburg, Germany;2. Bavarian Forest National Park, Section Research, Mycology and Climatology, Freyunger Str. 2, D-94481 Grafenau, Germany;1. ETH Zürich, Institute of Integrative Biology, Forest Pathology and Dendrology, Universitätstrasse 16, 8092 Zurich, Switzerland;2. Swiss Forest Protection, Eidg. Forschungsanstalt WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland;1. Department of Wood Science & Engineering, Oregon State University, Corvallis, OR 97331, USA;2. Apterus Consulting, Sea Ranch, CA, USA;3. Departamento de Ciencias Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja, Ecuador
Abstract:Wood-inhabiting fungi may affect soil fungal communities directly underneath decaying wood via their exploratory hyphae. In addition, differences in wood leachates between decaying tree species may influence soil fungal communities. We determined the composition of fungi in 4-yr old decaying logs of Larix kaempferi and Quercus rubra as well as in soil directly underneath and next to logs. Fungal community composition in soil covered by logs was different from that in wood and uncovered soil and was clearly influenced by the tree species. Soil fungal species richness under logs was lower than in uncovered soil but higher than in decaying wood. The amount of exploratory hyphae of log-inhabiting fungi was only high close to decaying logs. In conclusion, there is a small but significant effect of decaying coniferous and broadleaf logs on soil fungal communities directly underneath logs, likely affected by differences in wood chemistry and fungal preference between tree species.
Keywords:Cord-forming fungi  Illumina MiSeq sequencing of ITS  LOGLIFE  Tree species  Soil fungal communities  Species richness  Wood decomposition  Wood leachates
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