Enrichment of Clostridia during the operation of an external-powered bio-electrochemical denitrification system

Lee, Sang-Hoon; Kondaveeti, Sanath; Min, Booki; Park, Hee-Deung

doi:10.1016/j.procbio.2012.11.020

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Enrichment of Clostridia during the operation of an external-powered bio-electrochemical denitrification system

Lee, Sang-Hoon;
Kondaveeti, Sanath;
Min, Booki;
Park, Hee-Deung

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WEB OF SCIENCE

66

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69

초록

Bacterial community composition was investigated in a biocathode of an external-powered bio-electrochemical denitrifying system (BEDS), by analyzing 16S rRNA gene sequences determined from a high-throughput 454 pyrosequencing technology. The bacterial community of the inoculum sludge was mainly composed of Proteobacteria, Bacteroidetes, and Acidobacteria. Over 45 days of the BEDS, Bacteroidetes and Firmicutes were enriched on the biocathode. Putative denitrifying Clostridia belonging to the Firmicutes were distinctively detected on the biocathode via phylogenetic analysis and appeared to be ubiquitous in various autotrophic, heterotrophic, and BEDSs. Elucidation of the bacterial community composition in the denitrification system deepens our knowledge about the bacteria involved in bio-electrochemical denitrification. (C) 2012 Elsevier Ltd. All rights reserved.

키워드

Bio-electrochemical denitrification; Microbial fuel cell; Denitrification; Firmicutes; Clostridia; MICROBIAL FUEL-CELLS; DISSIMILATORY NITRATE REDUCTION; BIOFILM-ELECTRODE REACTOR; COMMUNITY STRUCTURE; BACTERIAL COMMUNITY; NITROGEN REMOVAL; SP-NOV; SEQUENCES; SEDIMENT; SLUDGE

제목: Enrichment of Clostridia during the operation of an external-powered bio-electrochemical denitrification system

저자: Lee, Sang-Hoon; Kondaveeti, Sanath; Min, Booki; Park, Hee-Deung

DOI: 10.1016/j.procbio.2012.11.020

발행일: 2013-02

유형: Article

저널명: Process Biochemistry

권: 48

호: 2

페이지: 306 ~ 311