A novel electrochemically active and Fe(III)-reducing bacterium phylogenetically related to Aeromonas hydrophila, isolated from a microbial fuel cell

Cuong Anh Pham, Sung Je Jung, Nguyet Thu Phung, Jiyoung Lee, In Seop Chang, Byung Hong Kim, Hana Yi, Jongsik Chun

Research output: Contribution to journalArticle

291 Citations (Scopus)

Abstract

A facultative anaerobic bacterium was isolated from a mediator-less microbial fuel cell fed with artificial wastewater containing acetate and designated as PA3. The isolate was identified as a strain of Aeromonas hydrophila based on its biochemical, physiological and morphological characteristics as well as 16S rDNA sequence analysis and DNA-DNA hybridization. PA3 used glucose, glycerol, pyruvate and hydrogen to reduce Fe(III), nitrate and sulfate. Cyclic voltammetry showed that PA3 was electrochemically active and was the culture collection strain A. hydrophila KCTC 2358. Electricity was generated from a fuel cell-type reactor, the anode compartment of which was inoculated with cell suspensions of the isolate or A. hydrophila KCTC 2358. The electrochemical activities are novel characteristics of A. hydrophila.

Original languageEnglish
Pages (from-to)129-134
Number of pages6
JournalFEMS microbiology letters
Volume223
Issue number1
DOIs
Publication statusPublished - 2003 Jun 6
Externally publishedYes

Keywords

  • Aeromonas hydrophila sp.
  • Cyclic voltammogram
  • Dissimilatory Fe(III) reduction
  • Electrochemically active bacteria
  • Microbial fuel cell
  • PA3

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics

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