Specificity of the Chitinolytic Microbial Complex of Soils Incubated at Different Temperatures

Manucharova, N.A.; Vlasenko, A.N.; Men’ko, E.V.; Zvyagintsev, D.G.

Авторы: Manucharova N.A., Vlasenko A.N., Men’ko E.V., Zvyagintsev D.G.
Журнал: Microbiology
Том: 80
Номер: 2
Год издания: 2011
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 205
Последняя страница: 215
DOI: 10.1134/S002626171102010X
Аннотация: The structural and functional specificity of the chitinolytic microbial complex changes dramatically depending on the incubation temperature of soil microcosms. It was shown that the highest rates of chitin deg- radation occurred in desert soils at high temperatures (50C); in the moderate and northern zones, these rates peaked at lower temperatures (5C). The role of prokaryotes as the main chitin degraders in soils incubated at high temperatures, with fungi more actively participating in chitin decomposition at low temperatures, was shown for the first time. Fluorescent in situ hybridization (FISH) revealed the predominance of actinomycetes in the metabolically active chitinolytic prokaryotic complex of desert soils (high temperatures); in the soils of the northern latitudes (low temperatures), proteobacteria prevailed. The relationship between the taxonomic position of the dominant members of the chitinolytic complex of soil microorganisms, isolated in pure cultures with the dominant phylogenetic groups and the sequence types obtained by using molecular biological tech- niques (FISH) was revealed. Keywords: chitinolytic microorganisms, thermophily, biopolymer transformation, physiologically active cells (FISH method), ecology.
Добавил в систему: Манучарова Наталия Александровна

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