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KMID : 1023520170400010027
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Korean Journal of Veterinary Service
2017 Volume.40 No. 1 p.27 ~ p.34
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Aminoglycoside susceptibility and genetic characterization of Salmonella enterica subsp. enterica isolated from pet turtles
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Hossain Sabrina
De Silva B. C. J.
Wimalasena S. H. M. P.
Pathirana H. N. K. S.
Heo Gang-Joon
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Abstract
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Salmonella enterica subsp. enterica is a common microbial flora in pet turtles, which could opportunistically become pathogenic to human. Their possession of aminoglycoside resistance genes has important significance both in humans and animal medicine. In this study, twenty-one Salmonella enterica subsp. enterica were isolated from thirty-five individual turtles purchased from pet shops and online markets in Korea. In order to characterize the aminoglycoside susceptibility patterns, antimicrobial susceptibility tests were performed against gentamicin, amikacin and kanamycin of aminoglycoside antimicrobial group. Each of the isolates showed susceptibility to all tested aminoglycosides in disk diffusion and minimum inhibitory concentration (MIC) tests. PCR assay was carried out to determine aminoglycoside resistance genes, integron and integron mediated aminoglycoside genes. None of the isolates showed aac(3)-IIa, aac-(6′)-Ib, armA, aphAI-IAB aminoglycoside resistance genes. Only, five isolates (24%) harbored class 1 integron related IntI1 integrase gene. The results suggest that Salmonella enterica subsp. enterica strains isolated from pet turtles are less resistance to aminoglycosides and don`t harbor any aminoglycosides resistance genes.
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KEYWORD
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Salmonella enterica subsp. enterica, Antimicrobial susceptibility tests, Aminoglycoside resistance genes, Class 1 integron, Pet turtles
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