Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1371/journal.pone.0088141
Titel (primär) Network analysis reveals ecological links between N-fixing bacteria and wood-decaying fungi
Autor Hoppe, B.; Kahl, T.; Karasch, P.; Wubet, T. ORCID logo ; Bauhus, J.; Buscot, F.; Krüger, D.
Erscheinungsjahr 2014
Department BOOEK; iDiv
Band/Volume 9
Heft 2
Seite von e88141
Sprache englisch
UFZ Querschnittsthemen RU1
Abstract Nitrogen availability in dead wood is highly restricted and associations with N-fixing bacteria are thought to enable wooddecaying fungi to meet their nitrogen requirements for vegetative and generative growth. We assessed the diversity of nifH (dinitrogenase reductase) genes in dead wood of the common temperate tree species Fagus sylvatica and Picea abies from differently managed forest plots in Germany using molecular tools. By incorporating these genes into a large compilation of published nifH sequences and subsequent phylogenetic analyses of deduced proteins we verified the presence of diverse pools corresponding to functional nifH, almost all of which are new to science. The distribution of nifH genes strongly correlated with tree species and decay class, but not with forest management, while higher fungal fructification was correlated with decreasing nitrogen content of the dead wood and positively correlated with nifH diversity, especially during the intermediate stage of wood decay. Network analyses based on non-random species co-occurrence patterns revealed interactions among fungi and N-fixing bacteria in the dead wood and strongly indicate the occurrence of at least commensal relationships between these taxa.
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Hoppe, B., Kahl, T., Karasch, P., Wubet, T., Bauhus, J., Buscot, F., Krüger, D. (2014):
Network analysis reveals ecological links between N-fixing bacteria and wood-decaying fungi
PLOS One 9 (2), e88141 10.1371/journal.pone.0088141