Bacterial community composition in the water column of the deepest freshwater Lake Baikal as determined by next-generation sequencing.

@article{Kurilkina2016BacterialCC,
  title={Bacterial community composition in the water column of the deepest freshwater Lake Baikal as determined by next-generation sequencing.},
  author={Maria I. Kurilkina and Yulia R. Zakharova and Yuri Pavlovich Galachyants and Darya Petrovna Petrova and Yu. S. Bukin and Valentina M. Domysheva and Vadim Vasil’evich Blinov and Yelena V. Likhoshway},
  journal={FEMS microbiology ecology},
  year={2016},
  volume={92 7}
}
The composition of bacterial communities in Lake Baikal in different hydrological periods and at different depths (down to 1515 m) has been analyzed using pyrosequencing of the 16S rRNA gene V3 variable region. Most of the resulting 34 562 reads of the Bacteria domain have clustered into 1693 operational taxonomic units (OTUs) classified with the phyla Proteobacteria, Actinobacteria, Chloroflexi, Bacteroidetes, Firmicutes, Acidobacteria and Cyanobacteria. It has been found that their… 

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References

SHOWING 1-10 OF 72 REFERENCES

Vertical stratification of microbial communities in the Red Sea revealed by 16S rDNA pyrosequencing

TLDR
Investigation of microbial communities in the water column overlying the Atlantis II Deep and Discovery Deep in the Red Sea indicates that the microbial communities sampled in this study are different from those identified in water column in other parts of the world.

The Structure of Microbial Community and Degradation of Diatoms in the Deep Near-Bottom Layer of Lake Baikal

TLDR
The metagenome of the bacterial community from the near-bottom water layer also contains 16S rRNA gene sequences found in previously isolated bacterial strains possessing hydrolytic enzyme activity, showing that potential degraders of diatoms occur among the vast variety of microorganisms in the near thebottom water of Lake Baikal.

Spatially differing bacterial communities in water columns of the northern Baltic Sea.

TLDR
The diversity and community structure of the northern Baltic Sea bacterial communities in the water column were thoroughly studied by 454 sequencing, finding that the spring and autumn bacterial communities were one order of magnitude less diverse than those in recently studied oceanic habitats.

Taxonomic and Functional Metagenomic Profiling of the Microbial Community in the Anoxic Sediment of a Sub-saline Shallow Lake (Laguna de Carrizo, Central Spain)

TLDR
Phylogenetic and biochemical analyses indicate that the inherent physical–chemical characteristics of this habitat coupled with adaptation to anthropogenic activities have resulted in a highly efficient community for the assimilation of polysulfides, sulfoxides, and organosulfonates together with nitro-, nitrile-, and cyanide-substituted compounds.

Bacterial Community Composition in Three Freshwater Reservoirs of Different Alkalinity and Trophic Status

TLDR
The results evidenced that the retrieved BCC in the analysed reservoirs was strongly influenced by pH, alkalinity and organic carbon content, whereas comparatively little change was observed among layers in stratified conditions.

Vertical Profiles of Bacteria in the Tropical and Subarctic Oceans Revealed by Pyrosequencing

TLDR
This study indicates that bacterial community composition in the DOC-poor deep water in both tropical and subarctic regions were rather stable, contrasting to those in the surface water layers, which could be strongly affected by the fluctuations of environmental factors.

Water mass‐specificity of bacterial communities in the North Atlantic revealed by massively parallel sequencing

TLDR
The results reveal that deep‐water masses act as bio‐oceanographic islands for bacterioplankton leading to water mass‐specific bacterial communities in the deep waters of the Atlantic.

The structure of bacterial communities in the western Arctic Ocean as revealed by pyrosequencing of 16S rRNA genes.

TLDR
In these Arctic waters, in spite of dramatic variation in several biogeochemical properties, bacterial community structure was remarkably stable over time and among regions, and any variation was due to the abundant phylotypes rather than rare ones.

Phylogenetic diversity of microorganisms associated with the deep-water sponge Baikalospongia intermedia

TLDR
The unusual habitation conditions of deep-water sponges contribute to the taxonomic diversity of associated bacteria and have an influence on the presence of functionally important microorganisms in bacterial communities.
...