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首页> 外文期刊>Fisheries and Aquatic Sciences >Antimicrobial Resistance and Virulence Genes Presence in Escherichia coli Strains Isolated from Gomso Bay, Korea
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Antimicrobial Resistance and Virulence Genes Presence in Escherichia coli Strains Isolated from Gomso Bay, Korea

机译：从韩国Gomso湾分离的大肠杆菌中的抗菌素耐药性和致病性基因的存在

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In total, 131 Escherichia coli isolates from surface seawater of the Gomso Bay, of Korea, were analyzed for their susceptibility to 22 different antimicrobials and for genes associated with antimicrobial resistance and virulence. According to the disk diffusion susceptibility test, the resistance to tetracycline was most prevalent (33.6%), followed by that to ampicillin (22.1%), ticarcillin (22.1%), and trimethoprim (16.8%). More than 46.6% of the isolates were resistant to at least one antimicrobial, and 22.9% were resistant to three or more classes of antimicrobials; these were consequently defined as multidrug resistant. We further found that 29 ampicillin-resistant isolates possessed genes encoding TEM-type (93.1%) and SHV-type (6.9%) -lactamases. Among the 44 tetracycline-resistant isolates, tetA and tetC were found in 35 (79.5%) and 19 (43.2%), respectively, whereas tetB was detected in only three isolates (6.8%). With regard to virulence genes, merely 0.8% (n = 1) and 2.3% (n = 3) of the isolates were positive for the enteroaggregative E. coli-associated plasmid (pCVD432) gene and the enteropathogenic E. coli-specific attaching and effacing (eae) gene, respectively. Overall, these results not only provide novel insight into the necessity for seawater sanitation in Gomso Bay, but they help reduce the risk of contamination of antimicrobial-resistant bacteria.
机译：总共对韩国Gomso湾表层海水中的131株大肠杆菌进行了分析，分析了它们对22种不同抗菌素的敏感性以及与抗菌素耐药性和毒力相关的基因。根据磁盘扩散敏感性测试，对四环素的耐药性最为普遍（33.6％），其次是对氨苄西林（22.1％），替卡西林（22.1％）和甲氧苄氨嘧啶（16.8％）的耐药性。超过46.6％的分离物对至少一种抗菌素有抗药性，而22.9％的分离物对三类或更多类抗药性有抗药性。因此，这些被定义为耐多药的。我们进一步发现29个耐氨苄青霉素的菌株具有编码TEM型（93.1％）和SHV型（6.9％）-内酰胺酶的基因。在44种耐四环素分离株中，分别在35（79.5％）和19（43.2％）中发现tetA和tetC，而仅在3种分离物中（6.8％）检测到tetB。关于毒力基因，只有0.8％（n = 1）和2.3％（n = 3）的分离株对肠聚集性大肠杆菌相关质粒（pCVD432）基因以及肠致病性大肠杆菌特异性附着和分离阳性。分别消失（eae）基因。总体而言，这些结果不仅为Gomso湾海水卫生的必要性提供了新颖的见解，而且还有助于降低抗微生物细菌污染的风险。

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