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THE TEMPERATURE INFLUENCE ON THE STRUCTURE OF MICROBIAL COMMUNITIES OF BOG PEATLAND (MODEL EXPERIMENT) // Tomsk State Pedagogical University Bulletin. 2010. Issue 3 (93). P. 92-100

In the annual model experiment was made the monitoring of quantity and taxonomical structure of the bacterial and fungal complexes in the monoliths of the bog peatland under temperature of20-24 oC and 4-6 oC, using the fluorescent- microscopic and plate methods. It was established, that low temperatures didn't exert serious influence on the morphological, taxonomical structure and abundance levels of the fungal complexes. The temperatures stimulated the development of Basidiomycetes and dark-coloured mycelium. Among the bacterial hydrolytic complex, Bacillus were the most adapted to the low-temperature conditions. In the bog peatland, fungi were shaped as mycelium, and spore-forming bacteria were shaped as vegetative cells, that's why they occurred to be in an active state. Also the fungi and spore-forming bacteria were adapted to low-temperature conditions and that helped them to decompose vegetative polymers.

Keywords: bog peatland, model experiment, low temperature, monitoring, bacteria, fungi, abundance, taxonomical structure

The influence of aeration on the structure of microbial complexes in fens // Tomsk State Pedagogical University Bulletin. 2011. Issue 5 (107). P. 117-125

Microbial communities in virgin and reclaimed fens of Tomsk region were examined in the comparative study. Differences between these peat lands could be found only for a dry season. A number of fungi, evaluated with the plating method, and a share of hydrolytic bacteria were considerably higher in the reclaimed fen. It indicates to the intensification of destruction due to the implemented agricultural afforestation. The differences between fens smooth after long-term rains: fungal and actinomycetal mycelium is fragmentary found in soil layers, number and specific diversity of micromycetes decrease, hydrobionts dominate among bacteria. Thus, though examined fens are hydromorphic soils, weather conditions should be taken into account for soil sampling, because all the microbiologic indicators, which allow characterizing microbial communities of peat soils, sharply vary under the change of dry and moist periods.

Keywords: fens, agroforestry, microbial biomass, bacteria, fungi, abundance, taxonomic structure