对大肠菌群进行多重抗生素耐药性指标检测，以识别水生环境中的高风险污染地点。
Multiple antibiotic resistance indexing of coliforms to identify high risk contamination sites in aquatic environment.
机构信息
D. K. Balhal School of Life Sciences, S.R.T.M. University, Nanded, 431 606 (MS) India.
出版信息
Indian J Microbiol. 2010 Jun;50(2):216-20. doi: 10.1007/s12088-010-0042-9. Epub 2010 Sep 16.
Abstract
Bacteriological analysis of the water samples collected from upstream, midstream and downstream points along the bank of the river revealed high populations of Escherichia coli, Citrobacter freundii, Citrobacter diversus, Enterobacter aerogens and Klebsiella species. All these isolates were screened against eight antibiotics to determine the prevalence of multiple antibiotic resistance among isolates at different sites of the river. The study revealed that multiple antibiotic resistance was prominently seen in coliforms at downstream sites (Average multiple antibiotic resistance index, MAR Index = 0.43) while it was low in coliforms at upstream sites (MAR Index = 0.15). These differences in MAR indices provide a method for distinguishing high risk contamination sites in aquatic environment.
摘要
对从河流两岸的上游、中游和下游采集的水样进行的细菌学分析显示，大肠杆菌、弗氏柠檬酸杆菌、异型柠檬酸杆菌、产气肠杆菌和克氏杆菌属的数量很高。所有这些分离株都用 8 种抗生素进行了筛选，以确定河流不同地点分离株的多重抗生素耐药率。研究表明，下游地点的大肠菌群中明显存在多重抗生素耐药性（平均多重抗生素耐药指数，MAR 指数=0.43），而上游地点的大肠菌群中耐药性较低（MAR 指数=0.15）。这些 MAR 指数的差异为区分水生环境中的高风险污染地点提供了一种方法。
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