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Article

Undisturbed Soil Pedon under Birch Forest: Characterization of Microbiome in Genetic Horizons

1
Institute of Soil Science and Agrochemistry SB RAS, Lavrentieva 8/2, 630090 Novosibirsk, Russia
2
Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva 8, 630090 Novosibirsk, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Jan Frouz and Veronika Jílková
Received: 29 December 2020 / Revised: 7 February 2021 / Accepted: 17 February 2021 / Published: 25 February 2021
Vast areas of land in the forest-steppe of West Siberia are occupied by birch forests, the most common ecosystems there. However, currently, little is known about the microbiome composition in the underlying soil, especially along a sequence of soil genetic horizons. The study aimed at inventorying microbiome in genetic horizons of a typical Phaeozem under undisturbed birch forest in West Siberia. Bacteria and fungi were studied using 16S rRNA genes’ and ITS2 amplicon sequencing with Illumina MiSeq. Proteobacteria and Acidobacteria together accounted for two-thirds of the operational taxonomic units (OTUs) numbers and half of the sequences in each genetic horizon. Acidobacteria predominated in eluvial environments, whereas Proteobacteria, preferred topsoil. The fungal sequences were dominated by Ascomycota and Basidiomycota phyla. Basidiomycota was the most abundant in the topsoil, whereas Ascomycota increased down the soil profile. Thelephoraceae family was the most abundant in the A horizon, whereas the Pyronemataceae family dominants in the AEl horizon, ultimately prevailing in the subsoil. We conclude that soil genetic horizons shape distinct microbiomes, therefore soil horizontation should be accounted for while studying undisturbed soils. This study, representing the first description of bacterio- and mycobiomes in genetic horizons of the Phaeozem profile, provides a reference for future research. View Full-Text
Keywords: ITS DNA diversity; 16S rRNA gene diversity; Phaeozem; soil properties; forest-steppe ITS DNA diversity; 16S rRNA gene diversity; Phaeozem; soil properties; forest-steppe
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MDPI and ACS Style

Naumova, N.B.; Belanov, I.P.; Alikina, T.Y.; Kabilov, M.R. Undisturbed Soil Pedon under Birch Forest: Characterization of Microbiome in Genetic Horizons. Soil Syst. 2021, 5, 14. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010014

AMA Style

Naumova NB, Belanov IP, Alikina TY, Kabilov MR. Undisturbed Soil Pedon under Birch Forest: Characterization of Microbiome in Genetic Horizons. Soil Systems. 2021; 5(1):14. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010014

Chicago/Turabian Style

Naumova, Natalia B., Ivan P. Belanov, Tatiana Y. Alikina, and Marsel R. Kabilov 2021. "Undisturbed Soil Pedon under Birch Forest: Characterization of Microbiome in Genetic Horizons" Soil Systems 5, no. 1: 14. https://0-doi-org.brum.beds.ac.uk/10.3390/soilsystems5010014

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