Abstract
Bacteria of the genus Burkholderia are a typical component of the microbial complex of Sphagnum peat bogs and constitute a substantial portion of the aerobic chemoorganotrophic isolates which are routinely obtained from these environments on an acidic nutrient media. The ecophysiological characteristics of the 27 strains of such organisms, which were isolated from the peat of acidic Sphagnum bogs of the boreal and tundra zones of Russia, Canada, and Estonia, were investigated in the present study. Most of the Burkholderia strains isolated from these bogs were phylogenetically close to the species B. glathei, B. phenazinium, B. fungorum, and B. caryophylli, the typical inhabitants of soil and plant rhizosphere. The bog isolates utilized a broad range of substrates as carbon and energy sources, including organic acids, sugars, polyalcohols, and certain aromatic compounds. All the strains studied were capable of growth on nitrogen-free media. They developed in the pH range of 3.5 to 7.4 and from 3 to 37°C, with the optima at pH 5–7 and 11–23°C, respectively. They were therefore moderately acidophilic, psychroactive, dinitrogen-fixing microorganisms well adapted to the conditions of acidic northern Sphagnum bogs.
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Original Russian Text © S.E. Belova, T.A. Pankratov, S.N. Dedysh, 2006, published in Mikrobiologiya, 2006, Vol. 75, No. 1, pp. 110–117.
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Belova, S.E., Pankratov, T.A. & Dedysh, S.N. Bacteria of the genus Burkholderia as a typical component of the microbial community of Sphagnum peat bogs. Microbiology 75, 90–96 (2006). https://doi.org/10.1134/S0026261706010164
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DOI: https://doi.org/10.1134/S0026261706010164