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Abstract
Two thirds of Svalbard archipelago islands in the High Arctic are permanently covered with glacial ice and snow. Polar bacterial communities in the southern part of Svalbard were characterized using an amplicon sequencing approach. A total of 52,928 pyrosequencing reads were analyzed in order to reveal bacterial community structures in stream and lake surface water samples from the Fuglebekken and Revvatnet basins of southern Svalbard. Depending on the samples examined, bacterial communities at a higher taxonomic level mainly consisted either of Bacteroidetes , Betaproteobacteria , and Microgenomates (OP11) or Planctomycetes , Betaproteobacteria , and Bacteroidetes members, whereas a population of Microgenomates was prominent in 2 samples. At the lower taxonomic level, bacterial communities mostly comprised Microgenomates , Comamonadaceae , Flavobacteriaceae , Legionellales , SM2F11, Parcubacteria (OD1), and TM7 members at different proportions in each sample. The abundance of OTUs shared in common among samples was greater than 70%, with the exception of samples in which the proliferation of Planctomycetaceae , Phycisphaeraceae , and Candidatus Methylacidiphilum spp. lowered their relative abundance. A multi-variable analysis indicated that As, Pb, and Sb were the main environmental factors influencing bacterial profiles. We concluded that the bacterial communities in the polar aquatic ecosystems examined mainly consisted of freshwater and marine microorganisms involved in detritus mineralization, with a high proportion of zooplankton-associated taxa also being identified.
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Authors (10)
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Spyridon Ntougias
- Democritus University of Thrace Department of Environmental Engineering
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Sofia Nikolaki
- University of Patras Department of Environmental and Natural Resources Management
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Eva Dionyssopoulou
- University of Patras Department of Environmental and Natural Resources Management
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Panagiota Stathopoulou
- University of Patras Department of Environmental and Natural Resources Management
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Vangelis Doudoumis
- University of Patras Department of Environmental and Natural Resources Management
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Marek Ruman
- Uniwersytet Śląski Katedra Geografii Fizycznej
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George Tsiamis
- University of Patras Department of Environmental and Natural Resources Management
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
MICROBES AND ENVIRONMENTS
no. 31,
pages 401 - 409,
ISSN: 1342-6311 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Ntougias S., Polkowska Ż., Nikolaki S., Dionyssopoulou E., Stathopoulou P., Doudoumis V., Ruman M., Kozak K., Namieśnik J., Tsiamis G.: Bacterial Community Structures in Freshwater Polar Environments of Svalbard// MICROBES AND ENVIRONMENTS. -Vol. 31, nr. 4 (2016), s.401-409
- DOI:
- Digital Object Identifier (open in new tab) 10.1264/jsme2.me16074
- Verified by:
- Gdańsk University of Technology
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