Calomiris J J, Armstrong J L, Seidler R J
Appl Environ Microbiol. 1984 Jun;47(6):1238-42. doi: 10.1128/aem.47.6.1238-1242.1984.
Bacterial isolates from the drinking water system of an Oregon coastal community were examined to assess the association of metal tolerance with multiple antibiotic resistance. Positive correlations between tolerance to high levels of Cu2+, Pb2+, and Zn2+ and multiple antibiotic resistance were noted among bacteria from distribution waters but not among bacteria from raw waters. Tolerances to higher levels of Al3+ and Sn2+ were demonstrated more often by raw water isolates which were not typically multiple antibiotic resistant. A similar incidence of tolerance to Cd2+ was demonstrated by isolates of both water types and was not associated with multiple antibiotic resistance. These results suggest that simultaneous selection phenomena occurred in distribution water for bacteria which exhibited unique patterns of tolerance to Cu2+, Pb2+, and Zn2+ and antibiotic resistance.
对俄勒冈州沿海社区饮用水系统中的细菌分离株进行了检测,以评估金属耐受性与多重抗生素耐药性之间的关联。在来自配水的细菌中,观察到对高水平Cu2+、Pb2+和Zn2+的耐受性与多重抗生素耐药性之间存在正相关,但在来自原水的细菌中未观察到这种相关性。原水分离株更常表现出对较高水平Al3+和Sn2+的耐受性,这些分离株通常不具有多重抗生素耐药性。两种水型的分离株对Cd2+的耐受性发生率相似,且与多重抗生素耐药性无关。这些结果表明,在配水中,对Cu2+、Pb2+和Zn2+表现出独特耐受模式以及具有抗生素耐药性的细菌发生了同时选择现象。