The Identification of CTX-M-14, TEM-52, and CMY-1 Enzymes in Escherichia coli Isolated from the Han River in Korea

Jungmin Kim; Hee Young Kang; Yeonhee Lee

doi:10.1007/s12275-008-0150-y

Research Support, Non-U.S. Gov't
The Identification of CTX-M-14, TEM-52, and CMY-1 Enzymes in Escherichia coli Isolated from the Han River in Korea: Jungmin Kim ¹, Hee Young Kang ¹, Yeonhee Lee ²; Journal of Microbiology 2008;46(5):478-481
DOI: https://doi.org/10.1007/s12275-008-0150-y
Published online: October 31, 2008

¹Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea, ²Department of Biology and Culture Collection of Antimicrobial Resistant Microbes, Seoul Women's University, Seoul 139-774, Republic of Korea¹Department of Microbiology, School of Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea, ²Department of Biology and Culture Collection of Antimicrobial Resistant Microbes, Seoul Women's University, Seoul 139-774, Republic of Korea

Corresponding author: Jungmin Kim , Tel: 82-53-420-4845,

Received: 17 June 2008 • Accepted: 17 July 2008

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Abstract

From water samples collected monthly between 2000 and 2001 from the Han River in Seoul, sixteen strains of Escherichia coli which confer resistance to at least 10 kinds of antimicrobial agents were isolated. From these isolates, 2 kinds of extended-spectrum β-lactamases (ESBLs) and one plasmid-mediated AmpC β-lactamase were detected; CTX-M-14 from 10 isolates, TEM-52 from 5 isolates, and CMY-1 from one isolate. Class 1 integron gene cassettes, such as aadA1, dfr12-orfF-aadA2, and dfr17-aadA5, were also detected and the integrons are the same as those found in E. coli isolated from swine, poultry, and humans in Korea. The result of this study indicated the importance of river water as a reservoir for antimicrobial resistance genes and resistant bacteria.

Keywords: CTX-M-14; TEM-52; CMY-1; E. coli from river water

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The Identification of CTX-M-14, TEM-52, and CMY-1 Enzymes in Escherichia coli Isolated from the Han River in Korea

J. Microbiol. 2008;46(5):478-481. Published online October 31, 2008

DOI: https://doi.org/10.1007/s12275-008-0150-y

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