Antimicrobial resistance of heterotrophic bacteria in sewage-contaminated rivers
Antimicrobial resistance of heterotrophic bacteria in sewage-contaminated rivers
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DOI：
10.1016/j.watres.2010.09.003
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发表时间：
2011-01-01
期刊：
影响因子：
12.8
通讯作者：
Cornelis, Pierre
中科院分区：
文献类型：
--
作者：
Garcia-Armisen, Tamara;Vercammen, Ken;Cornelis, Pierre
污水污染河流是由于重金属、有机污染物和药物以及粪便和病原微生物的释放而受到人类活动严重干扰的生态系统，它们与原生微生物种群共存。在这项研究中，我们比较了不同污水污染程度的河流中粪便细菌和异养菌的耐药率。事实上，污水污染程度与耐药异养菌百分率之间以及粪便中耐药菌与耐药异养菌数量之间均未发现相关关系。来自布鲁塞尔下游泽内河的大多数抗性菌株是多重抗性的，每个系统发育群的菌株之间的抗性模式相似。通过16S rRNA基因克隆文库分析，这条污染河流中的微生物群落以变形杆菌和拟杆菌门为主，而TM7门则是第三大类群。(C)2010爱思唯尔有限公司。保留所有权利。
Sewage-contaminated rivers are ecosystems deeply disturbed by human activity due to the release of heavy metals, organic pollutants and pharmaceuticals as well as faecal and pathogenic micro-organisms, which coexist with the autochthonous microbial population. In this study, we compared the percentage of resistance in faecal and heterotrophic bacteria in rivers with different degrees of sewage pollution. As a matter of fact, no correlation was found neither between the degree of sewage pollution and the percentage of antimicrobial resistant heterotrophic bacteria nor between the number of resistant faecal bacteria and that of resistant heterotrophic bacteria. Most of the resistant isolates from the Zenne river downstream Brussels were multi-resistant and the resistance patterns were similar among the strains of each phylogenetic group. The total microbial community in this polluted river (as evaluated through a 16S rRNA gene clone library analysis) appeared to be dominated by the phyla Proteobacteria and Bacteroidetes while the phylum TM7 was the third most represented. (C) 2010 Elsevier Ltd. All rights reserved.