Microbial communities and transformation of carbon compounds in bog soils of the taiga zone (Tomsk oblast)


Тип публикации: статья из журнала

Год издания: 2009

Идентификатор DOI: 10.1134/S1064229309090099

Ключевые слова: Aerobic zones, Anaerobiosis, Carbon compounds, Genetic methods, Microbial biomass, Microbial communities, Microbiological activity, Micromycetes, Mineral soils, Peat bogs, Proteobacteria, Quantitative indices, Species diversity, Biomass, Eutrophication, Methanogens, Microbiology, Peat, Population statistics, Soils, Wetlands, boreal forest, microbial community, microorganism, peatland, respiration, soil microorganism, Eurasia, Russian Federation, Tomsk [Russian Federation], Negibacteria

Аннотация: Two types of bogs were studied in Tomsk oblast-Maloe Zhukovskoe (an eutrophic peat low-moor bog) and Ozernoe (an oligotrophic peat high-moor bog). The gram-negative forms of Proteobacteria were found to be dominant and amounted to more than 40% of the total population of the microorganisms investigated. In the peat bogs, the populaПоказать полностьюtion and diversity of the hydrolytic microbial complex, especially of the number of micromycetes, were lower than those in the mineral soils. The changes in the quantitative indices of the total microbiological activity of the bogs were established. The microbial biomass and the intensity of its respiration differed and were also related to the depth of the sampling. In the Zhukovskoe peat low-moor bog, the maximal biomass of heterotrophic microorganisms (154 mu g of C/g of peat) was found in the aerobic zone at a depth of 0 to 10 cm. In the Ozernoe bog, the maximal biomass was determined in the zone of anaerobiosis at a depth of 300 cm (1947 mu g of C/g of peat). The molecular-genetic method was used for the determination of the spectrum of the methanogens. Seven unidentified dominant forms were revealed. The species diversity of the methanogens was higher in the oligotrophic high-moor bog than in the eutrophic low-moor bog.

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Выпуск журнала: Vol. 42, Is. 9

Номера страниц: 1021-1028

ISSN журнала: 10642293

Место издания: NEW YORK



  • Grodnitskaya I.D. (Institute of Forestry,Siberian Branch,Russian Academy of Sciences)
  • Trusova M.Y. (Siberian Federal University)

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