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PSEUDOMONAS AERUGINOSA ASSOCIATED WITH NEGATIVE INTERACTIONS ON COLIFORM BACTERIA GROWTH

机译:铜绿假单胞菌与大肠菌生长的负相互作用

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Screening aquatic Pseudomonads which inhibit growth of Escherichia coli and Enterobacter aerogenes produced sixteen strains of pyocyanin-producing Pseudomonas aeruginosa. Cell enumeration was carried out by the Most-Probable- Number technique for 96h by using diluted Müeller-Hinton broth. Conditions favouring pyocyanin production resulted in reduced growth of coliform strains. Representative strains were resistant to ciprofloxacin, norfloxacin and imipenem. It was also verified that a high population of coliform strains was reached when grown individually. Results show that there was an antagonistic phenomenon provided by Pseudomonas aeruginosa against coliform bacteria when pyocyanin was formed. This paper highlights the risks for human and environmental health that this phenomenon represents.
机译:筛选抑制大肠埃希氏菌和产气肠杆菌生长的水生假单胞菌产生了十六种产黄素的产铜绿假单胞菌。通过使用稀释的Müeller-Hinton肉汤,通过最可能数技术进行细胞计数96小时。有利于产生花青素的条件导致大肠菌菌株生长减少。代表性菌株对环丙沙星,诺氟沙星和亚胺培南具有抗性。还证实了当单独生长时达到了大肠菌群菌株。结果表明,形成绿脓素时,铜绿假单胞菌对大肠菌有拮抗作用。本文重点介绍了这种现象对人类和环境健康的危害。

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