Potential role of a novel psychrotolerant member of the family Geobacteraceae, Geopsychrobacter electrodiphilus gen. nov., sp. nov., in electricity production by a marine sediment fuel cell
Article Abstract:
Two strains isolated from the surfaces of electricity harvesting electrodes incubated in marine sediments are reported. Both isolates represent a novel genus in the Geobacteraceae and can grow at temperatures (4 degree C) lower than those previously reported for microorganisms in this family. It is concluded that strains A1T and A2 provide important pure-culture models for studying the physiology of electron transfer to electrodes in sediment fuel cells and for the growth of Geobacteraceae at the low temperatures often found in sedimentary environments.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2004
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Potential for quantifying expression of the Geobacteraceae citrate synthase gene to assess the activity of Geobacteraceae in the subsurface and on current-harvesting electrodes
Article Abstract:
The potential for using levels of citrate synthase mRNA to estimate rates of Geobacter metabolism is evaluated in pure culture studies and in four different Geobacteraceae-dominated environments. Studies reveal that transcript levels of the citrate synthase gene, gltA, increased with increased rates of growth/Fe(III) reduction or current production, whereas the expression of the constitutively expressed housekeeping genes recA, rpoD, and proC remained relatively constant.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2005
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Electron transfer by Desulfobulbus propionicus to Fe (III) and graphite electrodes
Article Abstract:
Electrical energy can be generated from marine sediments when a graphite electrode emplaced in marine sediment is connected to a cathode using an electrical circuit and there is a specific enrichment of delta-proteobacteria on the anode surface. Studies were conducted in order to examine how desulfobulbaceae interacts with anodes in sediments.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2004
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