Genomic evidence for the degradation of terrestrial organic matter by pelagic Arctic Ocean Chloroflexi bacteria, Biol. Ĭolatriano, D., Tran, P.Q., Guéguen, C., Williams, W.J., Lovejoy, C., and Walsh, D.A. īorzenkov, I.A., Milekhina, E.I., Gotoeva, M.T., Rozanova, E.P., and Belyaev, S.S., The properties of hydrocarbon oxidizing bacteria isolated from the oilfields of Tatarstan, Western Siberia, and Vietnam, Microbiology (Moscow), 2006, vol. and Peimbert, M., Degradation of a benzene-toluene mixture by hydrocarbon-adapted bacterial communities, Ann. The information obtained expands the existing understanding of the composition and physiological characteristics of microbial communities in Arctic soils.Īburto, A. Thirteen pure HOB cultures were isolated, belonging to the genera Arthrobacter, Bacillus, Brevibacillus, Janthinobacterium, Paenibacillus, Pseudomonas, Rhodococcus, and Sphingomonas, which were capable of growing with hydrocarbons and decrease the surface tension of the medium. The number of cultivated hydrocarbon-oxidizing bacteria (HOB) in soil samples, determined at 5 and 15☌, varied from 10 4 to 10 6 cells/g of soil. The 16S rRNA gene sequences of potential oil degraders of the genera Alkanindiges, Aquabacterium, Polaromonas, Pseudomonas, and Sphingomonas were revealed. Relative abundance of bacterial sequences of the phyla Acidobacteria, Chloroflexi, and Gemmatimonadetes was lower in the libraries of contaminated soil samples compared to the samples not contaminated with hydrocarbons. High-throughput sequencing of the V4 region of the 16S rRNA gene revealed predominance of bacterial sequences of the phyla Proteobacteria and Actinobacteria in the libraries from contaminated soils. In this work, we investigated the phylogenetic diversity and potential functional activity of microorganisms in the samples of hydrocarbon-contaminated Arctic soils.
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