Abstract
It has been revealed that in organic horizons and plants of the tundra and taiga ecosystems under low temperatures, actinomycetal complexes form. The population density of psychrotolerant actinomycetes in organic horizons and plants reaches tens and hundreds of thousands CFU/g of substrate or soil, and decreases in the sequence litters > plants > soils > undecomposed plant remains > moss growths. The mycelium length of psychrotolerant actinomycetes reaches 220 m/g of substrate. Application of the FISH method has demonstrated that metabolically active psychrotolerant bacteria of the phylum Actinobacteria constitute 30% of all metabolically active psychrotolerant representatives of the Bacterià domain of the prokaryotic microbial community of soils and plants. Psychrotolerant actinomycetes in tundra and taiga ecosystems possess antimicrobial properties.
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Original Russian Text © M.S. Dubrova, G.M. Zenova, A.V. Yakushev, N.A. Manucharova, E.P. Makarova, D.G. Zvyagintsev, I.Yu. Chernov, 2013, published in Pochvovedenie, 2013, No. 8, pp. 956–962.
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Dubrova, M.S., Zenova, G.M., Yakushev, A.V. et al. Psychrotolerant actinomycetes of plants and organic horizons in tundra and taiga soils. Eurasian Soil Sc. 46, 862–868 (2013). https://doi.org/10.1134/S1064229313080036
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DOI: https://doi.org/10.1134/S1064229313080036