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- Title
Rapid Isolation of a Facultative Anaerobic Electrochemically Active Bacterium Capable of Oxidizing Acetate for Electrogenesis and Azo Dyes Reduction.
- Authors
Shen, Nan; Yuan, Shi-Jie; Wu, Chao; Cheng, Yuan-Yuan; Song, Xiang-Ning; Li, Wen-Wei; Tong, Zhong-Hua; Yu, Han-Qing
- Abstract
In this study, 27 strains of electrochemically active bacteria (EAB) were rapidly isolated and their capabilities of extracellular electron transfer were identified using a photometric method based on WO nanoclusters. These strains caused color change of WO from white to blue in a 24-well agar plate within 40 h. Most of the isolated EAB strains belonged to the genera of Aeromonas and Shewanella. One isolate, Pantoea agglomerans S5-44, was identified as an EAB that can utilize acetate as the carbon source to produce electricity and reduce azo dyes under anaerobic conditions. The results confirmed the capability of P. agglomerans S5-44 for extracellular electron transfer. The isolation of this acetate-utilizing, facultative EBA reveals the metabolic diversity of environmental bacteria. Such strains have great potential for environmental applications, especially at interfaces of aerobic and anaerobic environments, where acetate is the main available carbon source.
- Subjects
REDUCTION of azo dyes; MICROBIAL fuel cells; PANTOEA agglomerans; SHEWANELLA; AEROMONAS; ELECTRIC power production
- Publication
Applied Biochemistry & Biotechnology, 2014, Vol 173, Issue 2, p461
- ISSN
0273-2289
- Publication type
Article
- DOI
10.1007/s12010-014-0853-y