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题名: Detection of qnr, aac(6 ')-Ib-cr and qepA genes in Escherichia coli isolated from cooked meat products in Henan, China
作者: Jiang, Xiaobing1; Yu, Tao2, 3; Wu, Nan3; Meng, Hecheng4; Shi, Lei4
关键词: Escherichia coli ; Quinolone resistance genes ; Extended-spectrum beta-lactamase ; Cooked meats
刊名: INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
发表日期: 2014-09-18
DOI: 10.1016/j.ijfoodmicro.2014.06.026
卷: 187, 页:22-25
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Food Science & Technology ; Microbiology
研究领域[WOS]: Food Science & Technology ; Microbiology
英文摘要: Antimicrobial resistance in Escherichia coli has increased in recent years in China. Antimicrobial resistant isolates and resistance genes of E. coli can be transferred to humans through the food chain and this presents a public health risk. However, few studies have investigated the prevalence of antimicrobial resistance-encoding genes in E. coli isolated from food samples in China. The aim of this study was to investigate the presence of quinolone resistance genes (QRGs) and extended-spectrum beta-lactamases (ESBLs) in E. coli isolated from cooked meat products in Henan, China. A total of 75 E. coli isolates (12.1%) were detected from 620 samples. High rates of resistance to the following drugs were observed: tetracycline (56.0%), trimethoprim/sulfamethoxazole (41.3%), streptomycin (29.3%), ampicillin (26.7%) and nalidixic acid (14.7%). Of the 75 isolates, QRGs were present in 10 isolates (13.3%), with qnr and aac(6')-Ib-cr detected alone or in combination in five (6.7%) and eight isolates (10.7%). The qnr genes detected in this study included qnrS (n = 3) and qnrA (n = 2). The qepA gene was absent among these isolates. Three types of beta-lactamase genes were identified in the five ESBL-producing E. coli isolates: bla(CTX-M-1) and bla(CTX-M-9) and bla(TEM-1). The qnrS gene was found to be co-transferred with bla(CTX-M-1) and bla(TEM-1) one isolate. Our data suggest that cooked meat products may act as reservoirs for multi-resistant bacteria and facilitate the dissemination of antimicrobial resistance genes. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: MEDIATED QUINOLONE RESISTANCE ; SPECTRUM BETA-LACTAMASE ; CTX-M ; KLEBSIELLA-PNEUMONIAE ; CLINICAL ISOLATE ; DETERMINANTS QNR ; VIRULENCE GENES ; PLASMID ; PREVALENCE ; FOOD
语种: 英语
WOS记录号: WOS:000340989500004
ISSN号: 0168-1605
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20381
Appears in Collections:水生生物分子与细胞生物学研究中心_期刊论文

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作者单位: 1.Henan Normal Univ, Coll Life Sci, Xinxiang 453007, Peoples R China
2.Xinxiang Univ, Dept Chem & Chem Engn, Xinxiang 453000, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Peoples R China
4.S China Univ Technol, Coll Light Ind & Food Sci, Guangzhou 510640, Guangdong, Peoples R China

Recommended Citation:
Jiang, Xiaobing; Yu, Tao; Wu, Nan; Meng, Hecheng; Shi, Lei.Detection of qnr, aac(6 ')-Ib-cr and qepA genes in Escherichia coli isolated from cooked meat products in Henan, China,INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY,2014,():
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