TY - JOUR
T1 - Determinants of deadwood-inhabiting fungal communities in temperate forests
T2 - Molecular evidence from a large scale deadwood decomposition experiment
AU - Purahong, Witoon
AU - Wubet, Tesfaye
AU - Lentendu, Guillaume
AU - Hoppe, Björn
AU - Jariyavidyanont, Katalee
AU - Arnstadt, Tobias
AU - Baber, Kristin
AU - Otto, Peter
AU - Kellner, Harald
AU - Hofrichter, Martin
AU - Bauhus, Jürgen
AU - Weisser, Wolfgang W.
AU - Krüger, Dirk
AU - Schulze, Ernst Detlef
AU - Kahl, Tiemo
AU - Buscot, François
N1 - Publisher Copyright:
© 2007-2018 Frontiers Media S.A. All Rights Reserved.
PY - 2018/9/20
Y1 - 2018/9/20
N2 - 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 well-replicated 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.
AB - 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 well-replicated 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.
KW - BELongDead
KW - Fungal community composition
KW - Fungal richness
KW - Microbial ecology
KW - Next generation sequencing
KW - Wood-physicochemical properties
UR - http://www.scopus.com/inward/record.url?scp=85055101916&partnerID=8YFLogxK
U2 - 10.3389/fmicb.2018.02120
DO - 10.3389/fmicb.2018.02120
M3 - Article
AN - SCOPUS:85055101916
SN - 1664-302X
VL - 9
JO - Frontiers in Microbiology
JF - Frontiers in Microbiology
IS - SEP
M1 - 2120
ER -