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Molecular evidence strongly supports deadwood-inhabiting fungi exhibiting unexpected tree species preferences in temperate forests
Ist Teil von
The ISME Journal, 2018-01, Vol.12 (1), p.289-295
Ort / Verlag
England: Nature Publishing Group
Erscheinungsjahr
2018
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Wood-inhabiting fungi have essential roles in the regulation of carbon stocks and nutrient cycling in forest ecosystems. However, knowledge pertaining to wood-inhabiting fungi is only fragmentary and controversial. Here we established a large-scale deadwood experiment with 11 tree species to investigate diversity and tree species preferences of wood-inhabiting fungi using next-generation sequencing. Our results contradict existing knowledge based on sporocarp surveys and challenge current views on their distribution and diversity in temperate forests. Analyzing α-, β- and γ-diversity, we show that diverse fungi colonize deadwood at different spatial scales. Specifically, coniferous species have higher α- and γ-diversity than the majority of analyzed broadleaf species, but two broadleaf species showed the highest β-diversity. Surprisingly, we found nonrandom co-occurrence (P<0.001) and strong tree species preferences of wood-inhabiting fungi, especially in broadleaf trees (P<0.01). Our results indicate that the saprotrophic fungal community is more specific to tree species than previously thought.