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首页> 外文期刊>Korean Journal of Fisheries and Aquatic Sciences >Antimicrobial Resistance and the Presence of Virulence Genes in Escherichia coli Strains Isolated from Ruditapes philippinarum inGomso Bay, Korea
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Antimicrobial Resistance and the Presence of Virulence Genes in Escherichia coli Strains Isolated from Ruditapes philippinarum inGomso Bay, Korea

机译：从韩国金索湾的菲律宾蛤仔分离出的大肠杆菌中的抗菌素耐药性和致病基因的存在

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In total, 151 Escherichia coli isolates from Ruditapes philippinarum in Gomso Bay were analyzed for their susceptibility to 18 different antimicrobial agents and for genes associated with virulence. For virulence genes, each strain of the isolates waspositive for the enterotoxigenic E. coli (ETEC)-specific heat-stable toxin (estA), enteroinvasive E. coli (EIEC)-specific invasion-associated locus (iaa) gene and enteropathogenic E. coli (EPEC)-specific attaching and effacing (eae) gene. According to adisk diffusion susceptibility test, resistance to ampicillin was most prevalent (23.2%), followed by resistance to amoxicillin (22.5%), ticarcillin (20.5%), tetracycline (18.5%), nalidixic acid (12.6%), ciprofloxacin (10.6%), streptomycin (9.9%), and chloramphenicol (6.6%). More than 35.8% of the isolates were resistant to at least one antimicrobial agent, and 19.9% were resistant to four or more classes of antimicrobials; these were consequently defined as multidrug resistant. Minimum inhibitory concentration (MIC) ranges for the antimicrobial resistance of the 15 different antimicrobial agents of 54 E. coli strains were confirmed by varying the concentrations from 32-2,048 |ig/mL. Overall, these results not only provide novel insights into the necessity for seawater and R. philippinarum sanitation in Gomso Bay but they also help to reduce the risk of contamination by antimicrobial-resistant bacteria.
机译：总共分析了Gomso湾的151份来自菲律宾Ruditapes philippinarum的大肠杆菌分离株对18种不同抗菌剂的敏感性以及与毒力相关的基因。对于毒力基因，分离株的每个菌株对肠毒素E.coli（ETEC）特异性热稳定毒素（estA），肠入侵E. coli（EIEC）特异性入侵相关基因（iaa）基因和肠致病性E.大肠杆菌（EPEC）特异性附着和消失（eae）基因。根据adisk扩散敏感性测试，对氨苄西林的耐药性最高（23.2％），其次是对阿莫西林（22.5％），替卡西林（20.5％），四环素（18.5％），萘啶酸（12.6％），环丙沙星（10.6）的耐药性％），链霉素（9.9％）和氯霉素（6.6％）。超过35.8％的分离株对至少一种抗菌剂有抗药性，而19.9％的分离株对4种或更多种抗微生物剂有抗药性;因此，这些被定义为耐多药的。通过在32-2,048 | ig / mL范围内改变浓度，确认了54株大肠杆菌的15种不同抗微生物剂的最低耐药浓度（MIC）范围。总体而言，这些结果不仅提供了关于Gomso湾海水和菲律宾河豚卫生的必要性的新颖见解，而且还有助于降低抗微生物细菌污染的风险。

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