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 population 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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Держатели документа:
[Grodnitskaya, I. D.] Russian Acad Sci, Siberian Branch, Inst Forestry, Krasnoyarsk 660036, Russia
[Trusova, M. Yu.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Trusova, M. Yu.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Trusova, M.Y.; Siberian Branch of the Russian Academy of Sciences [24]; Siberian Branch of the Russian Academy of Sciences; Ministry of Education and Science of the Russian Federation [2.1.1/6611]