Phylogenetic analyses of bacterial communities developed in a cassette-electrode microbial fuel cell

Takefumi Shimoyama, Akira Yamazawa, Yoshiyuki Ueno, Kazuya Watanabe

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Quantitative and qualitative differences were analyzed between planktonic and anode-biofilm bacterial communities developed in a cassette-electrode microbial fuel cell treating starch, peptone, and fish extract. Quantitative analyses based on protein contents and rRNA-gene copy numbers indicated that planktonic microbes were over eight-times more abundant than anode-biofilm microbes. Clone-library analyses of PCR-amplified 16S rRNA gene fragments revealed the presence of bacteria affiliated with the phyla Bacteroidetes, Firmicutes, and Proteobacteria in these two communities. The most abundant sequence was affiliated with the family Porphyromonadaceae, and accounted for over 50% and 20% of all the sequences in the planktonic- and biofilm-microbe libraries, respectively.

Original languageEnglish
Pages (from-to)188-192
Number of pages5
JournalMicrobes and environments
Volume24
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • Biomass
  • Electricity generation
  • Microbial community
  • Sustainable energy
  • Wastewater

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Soil Science
  • Plant Science

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