HETEROGENEITY OF 2.3 MDa PLASMIDS IN Salmonella ENTERITIDIS STRAINS
https://doi.org/10.15372/SSMJ20190204
Abstract
The aim of the research was to study plasmids 2.3 MDa (3609 bp) and their distribution in Salmonella Enteritidis strains isolated from various environmental sources at different times on the territory of the Russian Federation. Material and methods. A PCR typing of 33 S. Enteritidis strains, isolated for the period from 1995 to 2017, containing plasmid 2.3 MDa described earlier in microbe strains has been carried out. Results and discussion. The plasmid was firstly sequenced by us. Its relatedness to plasmid in GenBank from the strain of S. Typhimurium CFSAN001921 described in the United States has been revealed. It has been established that plasmid p2.3 presents within 23 years in S. Enteritidis strains isolated from patients and food at administrative territories of majority of the Russian Federation subjects. In addition, it has been shown that plasmid p2.3 can be heterogeneous in nucleotide composition. Conclusion. Considering the fact that plasmid p2.3 was isolated from patients in the USA, and strains we investigated were from patients and food in Russia, it can be assumed that the distribution area of the plasmid has a transcontinental nature.
About the Authors
A. V. Rakov
Somov Institute of Epidemiology and Microbiology
Russian Federation
Russian Federation
candidate of medical sciences, senior researcher
690087, Vladivostok, Sel’skaya str., 1
F. N. Shubin
Somov Institute of Epidemiology and Microbiology
Russian Federation
Russian Federation
doctor of medical sciences, professor, chief researcher
690087, Vladivostok, Sel’skaya str., 1
N. A. Kuznetsova
Somov Institute of Epidemiology and Microbiology
Russian Federation
Russian Federation
candidate of medical sciences, senior researcher
690087, Vladivostok, Sel’skaya str., 1
A. S. Solovyeva
Somov Institute of Epidemiology and Microbiology
Russian Federation
Russian Federation
junior researcher
690087, Vladivostok, Sel’skaya str., 1
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