DETECTION OF POTENTIALLY PATHOGENIC BACTERIA IN THE BRACKISH RIVERS FLOWING INTO THE ELTON LAKE BY HIGH-THROUGHPUT SEQUENCING

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Abstract

Aim. To indicate potentially pathogenic bacteria in plankton of the brackish rivers flowing into the Elton Lake by high-throughput sequencing of 16S ssuRNA gene. Materials and methods. The water samples from brackish rivers Lantsug and Chernavka, flowing into the Elton Lake, were taken up in a volume of 50 ml, filtered through membrane filters (pore diameter - 0.22 pm). Total DNAwas obtained by phenol-chloroform extraction with preliminary homogenization and enzymatic lysis. DNA libraries for sequencing were created by protocol Illumina with primers to a variable V3-V4 region of 16S ssuRNA gene. Sequencing was performed on a platform MiSeq («Illumina», США). Results.There were found the phylotypes of potentially pathogenic bacteria of Proteobacteria phylum from the families Enterobacteriaceae, Pseudomonadaceae, Campylobacteraceae, Vibrionaceae, Aeromonadaceae, Moraxellaceae, Legionellaceae, Alcaligenaceae, Campylobacteraceae, and also of Firmicutes, Bacteroidetes, Actinobacteria phyla in the plankton samples of the brackish rivers. Probable source of bacterial contamination is large and small cattle. Conclusion. These data demonstrate that the continental brackish waters, along with freshwater and marine habitats perform a reservoir function to potentially pathogenic microorganisms. High-throughput sequencing can be used to screen the presence of pathogens in water.

About the authors

E. A. Selivanova

Institute of Сellular and Intracellular Symbiosis

Author for correspondence.
Email: noemail@neicon.ru
Россия

Yu. A. Khlopko

Institute of Сellular and Intracellular Symbiosis

Email: noemail@neicon.ru
Россия

N. E. Gogoleva

Kazan Institute of Biochemistry and Biophysics; Kazan Federal University

Email: noemail@neicon.ru
Россия

A. O. Plotnikov

Institute of Сellular and Intracellular Symbiosis

Email: noemail@neicon.ru
Россия

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Copyright (c) 2018 Selivanova E.A., Khlopko Y.A., Gogoleva N.E., Plotnikov A.O.

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