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KMID : 1023520120350010001
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Korean Journal of Veterinary Service
2012 Volume.35 No. 1 p.1 ~ p.8
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Investigation on antimicrobial resistance genes of Salmonella Schwarzengrund isolated from pigs
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Lee Woo-Won
Lee Seung-Mi
Lee Gang-Rok
Lee Gi-Heun
Kim Sang-Hyun
Kim Yong-Hwan
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Abstract
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To detect the virulence genes (invA and spvC) and antimicrobial resistance genes, polymerase chain reaction (PCR) was carried out using total 67 strains of S. Schwarzengrund isolated from pigs. As results, invA was detected from all 67 strains of S. Schwarzengrund, however, spvC was not at all. All 12 strains with ampicillin resistance, 15 strains with chloramphenicol resistance, 9 strains with kanamycin resistance, 1 strain with sulfamethoxazole/trimethoprim resistance, and 66 (98.5%) of 67 strains with tetracycline resistance carried TEM (β-lactamase blaTEM), cmlA (nonenzymatic chloramphenicol resistance), aphA1-Iab (aminoglycoside phosphotransferase), sulII (dihydropteroate synthase), and tetA (class A tetracycline resistance), respectively. All 63 strains with streptomycin resistance carried 3 aminoglycoside resistance genes, including aadA (aminoglycoside adenyltransferase), strA, and strB (streptomycin phosphotransferase). With respect to prevalence of antibiotic resistance genes occurred in S. Schwarzengrund, genes for strB (46.0%); strA and strB (30.2%); aadA, strA, and strB (9.5%); strA (7.9%); aadA and strB (3.2%); and aadA (3.2%) were detected by PCR.
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KEYWORD
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Schwarzengrund, Virulence PCR, Antimicrobial resistance, Integrase
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