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首页> 外文期刊>Current Microbiology: An International Journal >Properties of Antibiotic-Resistant Bacteria Isolated from Onsite Wastewater Treatment Plant in Relation to Biofilm Formation
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Properties of Antibiotic-Resistant Bacteria Isolated from Onsite Wastewater Treatment Plant in Relation to Biofilm Formation

机译：从现场废水处理厂中分离的抗生素抗菌性质与生物膜形成相关

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The aim of the present study was to determine some properties of antibiotic-resistant bacterial strains isolated from onsite wastewater technology in relation to biofilm formation, e.g., autoaggregation and motility. Additionally, biosurfactant production by the isolates was also evaluated. The ability of selected strains to develop a biofilm was assessed by using the crystal violet method, which allows to indirectly quantify the attached bacterial biomass (live, dead cells, and polysaccharides as well). Obtained results showed that 19 of the analyzed strains were able to produce biofilm after 72 h of incubation. The low values of surface tension in the range between 28 and 36 mN/m were observed in the bacteria, which are not able to produce biofilm or be classified as weak biofilm producers. Among biofilm-forming strains the highest autoaggregation index was observed for Mycobacterium brumae and Bacillus alcalophilus. Noteworthy, that some strains capable of biofilm formation showed no aggregation abilities or were characterized by low autoaggregative properties. The results of visual autoaggregation assay showed no visible flocs after given time of incubation. The results from motility test demonstrated that most of the analyzed strains were motile. Noteworthy, that up to now literature data about physiology, biofilm formation, and autoaggregative capabilities of bacteria isolated from onsite wastewater technology are very limited and this paper gives the information on the antibiotic-resistant bacteria with ability to form biofilm. Thus, the present study points to develop novel bioinocula in antibiotic degradation and to reach novel biofilm-dispersing agents produced by various bacteria that can be used as disinfectants or surface-coating agents to prevent microbial surface colonization and biofilm development.
机译：本研究的目的是确定与生物膜形成相关的现场废水技术中分离的抗生素抗性细菌菌株的一些性能，例如自杀和运动。另外，还评估了分离物的生物活性剂产生。通过使用晶体紫色方法评估所选菌株的能力，允许间接量化附着的细菌生物量（Live，Dead细胞和多糖）。得到的结果表明，在孵育72小时后，19分析的菌株中的19个分析的菌株能够产生生物膜。在细菌中观察到在28和36mN / m之间的表面张力范围内的低值，这些细菌不能产生生物膜或被分类为弱生物膜生产商。在生物膜形成菌株中，对分枝杆菌和芽孢杆菌的嗜酸杆菌菌观察到最高的自杀指数。值得注意的是，能够形成生物膜形成的一些菌株显示出没有聚集能力或以低自杀性能的特征为例。视觉自动聚格测定的结果在孵育时显示出不可见的絮状物。动力试验的结果表明，大多数分析的菌株是动机。值得注意的是，现在，关于从现场废水技术中分离的生理学，生物膜形成和分离的细菌的生理学，生物膜形成和自身聚集能力的文献数据非常有限，本文给出了抗生素抗性细菌的信息，具有形成生物膜的能力。因此，本研究表明，在抗生素降解中发展新型生物区域，并达到各种细菌生产的新型生物膜分散剂，可用作消毒剂或表面涂覆剂以防止微生物表面定植和生物膜发育。

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