Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms

Abstract Microbial community and diversity in the rhizosphere is strongly influenced by biotic and/or abiotic factors, like root exudates, nutrient availability, edaphon and climate. Here we report on the microbial diversity within the rhizosphere of Larix decidua, a dominant tree species in the Alp...

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Autores principales:	Nadine Praeg, Paul Illmer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c1fc41e0a6ff483ab5f7e713fccf396e
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spelling	oai:doaj.org-article:c1fc41e0a6ff483ab5f7e713fccf396e2021-12-02T13:34:09ZMicrobial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms10.1038/s41598-020-79143-y2045-2322https://doaj.org/article/c1fc41e0a6ff483ab5f7e713fccf396e2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79143-yhttps://doaj.org/toc/2045-2322Abstract Microbial community and diversity in the rhizosphere is strongly influenced by biotic and/or abiotic factors, like root exudates, nutrient availability, edaphon and climate. Here we report on the microbial diversity within the rhizosphere of Larix decidua, a dominant tree species in the Alps, as compared with the microbiome within the surrounding soil. We describe how increased light intensity influenced the rhizobiome and put emphasize on methane cycling microorganisms. Microbial taxa were classified into 26 bacterial, 4 archaeal and 6 fungal phyla revealing significant differences between bulk and rhizosphere soils. The dominant prokaryotic phyla were Proteobacteria, Acidobacteria, Actinobacteria (both, rhizosphere and bulk soil) and Bacteroidetes (rhizosphere soil only) and dominant fungal phyla in both fractions included Ascomycota and Basidiomycota. The rhizosphere community was indicated by Suillus sp., plant growth-promoting bacteria and Candidatus Saccharibacteria. Predicted genes in membrane transport and carbohydrate metabolism were significantly more abundant in rhizosphere soils while genes connected with energy metabolisms and cell motility increased in bulk soils. Dominant methanotrophic microorganisms were Upland Soil Cluster (USC) α methanotrophs, Methylogaea spp. and Methylosinus spp., while most methanogens belonged to Methanomassiliicoccales. The overall abundance of methanotrophs distinctly increased in the rhizosphere but to a very different species-specific extent. The increased light intensity only led to minor changes in the rhizobiome, nevertheless a couple of indicator species (e.g. Pseudomonas sp.) for intensified light conditions were established.Nadine PraegPaul IllmerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nadine Praeg Paul Illmer Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
description	Abstract Microbial community and diversity in the rhizosphere is strongly influenced by biotic and/or abiotic factors, like root exudates, nutrient availability, edaphon and climate. Here we report on the microbial diversity within the rhizosphere of Larix decidua, a dominant tree species in the Alps, as compared with the microbiome within the surrounding soil. We describe how increased light intensity influenced the rhizobiome and put emphasize on methane cycling microorganisms. Microbial taxa were classified into 26 bacterial, 4 archaeal and 6 fungal phyla revealing significant differences between bulk and rhizosphere soils. The dominant prokaryotic phyla were Proteobacteria, Acidobacteria, Actinobacteria (both, rhizosphere and bulk soil) and Bacteroidetes (rhizosphere soil only) and dominant fungal phyla in both fractions included Ascomycota and Basidiomycota. The rhizosphere community was indicated by Suillus sp., plant growth-promoting bacteria and Candidatus Saccharibacteria. Predicted genes in membrane transport and carbohydrate metabolism were significantly more abundant in rhizosphere soils while genes connected with energy metabolisms and cell motility increased in bulk soils. Dominant methanotrophic microorganisms were Upland Soil Cluster (USC) α methanotrophs, Methylogaea spp. and Methylosinus spp., while most methanogens belonged to Methanomassiliicoccales. The overall abundance of methanotrophs distinctly increased in the rhizosphere but to a very different species-specific extent. The increased light intensity only led to minor changes in the rhizobiome, nevertheless a couple of indicator species (e.g. Pseudomonas sp.) for intensified light conditions were established.
format	article
author	Nadine Praeg Paul Illmer
author_facet	Nadine Praeg Paul Illmer
author_sort	Nadine Praeg
title	Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
title_short	Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
title_full	Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
title_fullStr	Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
title_full_unstemmed	Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms
title_sort	microbial community composition in the rhizosphere of larix decidua under different light regimes with additional focus on methane cycling microorganisms
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/c1fc41e0a6ff483ab5f7e713fccf396e
work_keys_str_mv	AT nadinepraeg microbialcommunitycompositionintherhizosphereoflarixdeciduaunderdifferentlightregimeswithadditionalfocusonmethanecyclingmicroorganisms AT paulillmer microbialcommunitycompositionintherhizosphereoflarixdeciduaunderdifferentlightregimeswithadditionalfocusonmethanecyclingmicroorganisms
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Microbial community composition in the rhizosphere of Larix decidua under different light regimes with additional focus on methane cycling microorganisms

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