Effect of Treated Wastewater on the Distribution of Antyibiotic-Resistant Microorganisms in the Aquatic Environment

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The effect of waste treatment plants in Pushchino, Russia on abundance of antibiotic-resistant microorganisms and determinants of multiple drug resistance in the Oka River water and sediments was investigated. Treated wastewater was found to contribute to contamination of the Oka surface water layer with aminoglycoside-resistant strains. The role of Pushchino waste treatment plants in the dissemination of multidrug-resistant strains and plasmids of the А/С incompatibility groups (IncA/C) was demonstrated. Waste treatment plants were shown to affect both the total abundance of eubacteria in sediments and to assect their composition, increasing the relative abundance of pseudomonads.

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Sobre autores

T. Izmalkova

G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”

Autor responsável pela correspondência
Email: tatiz@pbcras.ru
Rússia, Pushchino, 142290

O. Sazonova

G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”

Email: tatiz@pbcras.ru
Rússia, Pushchino, 142290

I. Kosheleva

G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”

Email: tatiz@pbcras.ru
Rússia, Pushchino, 142290

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2. Fig. 1. The total number of antibiotic-resistant microorganisms (CFU/ml of the sample) isolated by direct seeding from sediment samples (a) and water (b) of the Oka River. Tc ‒ tetracycline, Km ‒ kanamycin, Sm ‒ streptomycin, Gm — gentamicin, Caz — ceftazidime, Fep — cefepime, Mer — meropenem.

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