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Bacterial Communities in Boreal Forest Mushrooms Are Shaped Both by Soil Parameters and Host Identity
Univ Tartu, Inst Ecol & Earth Sci, Dept Bot, Tartu, Estonia..
Univ Tartu, Inst Ecol & Earth Sci, Dept Bot, Tartu, Estonia..
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology. Univ Tartu, Inst Ecol & Earth Sci, Dept Bot, Tartu, Estonia.
2017 (English)In: Frontiers in Microbiology, ISSN 1664-302X, E-ISSN 1664-302X, Vol. 8, article id 836Article in journal (Refereed) Published
Abstract [en]

Despite recent advances in understanding the microbiome of eukaryotes, little is known about microbial communities in fungi. Here we investigate the structure of bacterial communities in mushrooms, including common edible ones, with respect to biotic and abiotic factors in the boreal forest. Using a combination of culture-based and Illumina high-throughput sequencing, we characterized the bacterial communities in fruitbodies of fungi from eight genera spanning four orders of the class Agaricomycetes (Basidiomycota). Our results revealed that soil pH followed by fungal identity are the main determinants of the structure of bacterial communities in mushrooms. While almost half of fruitbody bacteria were also detected from soil, the abundance of several bacterial taxa differed considerably between the two environments. The effect of host identity was significant at the fungal genus and order level and could to some extent be ascribed to the distinct bacterial community of the chanterelle, representing Cantharellales-the earliest diverged group of mushroom-forming basidiomycetes. These data suggest that besides the substantial contribution of soil as a major taxa source of bacterial communities in mushrooms, the structure of these communities is also affected by the identity of the host. Thus, bacteria inhabiting fungal fruitbodies may be non-randomly selected from environment based on their symbiotic functions and/or habitat requirements.

Place, publisher, year, edition, pages
FRONTIERS MEDIA SA , 2017. Vol. 8, article id 836
Keywords [en]
Agaricales, Boletales, ectomycorrhizal fungi, food microbiome, microbial interactions, Proteobacteria, Russulales, symbiont communities
National Category
Microbiology
Identifiers
URN: urn:nbn:se:uu:diva-325331DOI: 10.3389/fmicb.2017.00836ISI: 000401503600001PubMedID: 28539921OAI: oai:DiVA.org:uu-325331DiVA, id: diva2:1118032
Available from: 2017-06-29 Created: 2017-06-29 Last updated: 2017-11-29Bibliographically approved

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