Geopsychrobacter electrodiphilus

Geopsychrobacter electrodiphilus
Scientific classification
Domain:
Phylum:
Class:
Order:
Family:
Genus:
Geopsychrobacter

Holmes et al. 2005
Species:
G. electrodiphilus
Binomial name
Geopsychrobacter electrodiphilus
Holmes et al. 2005

Geopsychrobacter electrodiphilus is a species of bacteria, the type species of its genus.[a] It is a psychrotolerant member of its family, capable of attaching to the anodes of sediment fuel cells and harvesting electricity by oxidation of organic compounds to carbon dioxide and transferring the electrons to the anode.[1]

In microbial communities, G. electrodiphilus could be similar to other Geobacteraceae.[1] The community may ferment complex organic matter, thereby breaking up plant matter, for example; G. electrodiphilus would then oxidize the fermentation products (especially acetate) to carbon dioxide, whereby a terminal electron acceptor [e.g. iron(III) oxide] would be reduced.[1] At least one strain (A1T) can oxidize hydrogen too.[1]

Since G. electrodiphilus belongs to the Geobateraceae and can transfer electrons to the outside,[1] one could assume that electron transfer to a methane producing archaeon could happen. There is another member of Geobacteraceae, well investigated for its interspecies electron transfer, even to a methanogen.[2]

  1. ^ a b c d e f Holmes DE, Nicoll JS, Bond DR, Lovley DR (October 2004). "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". Applied and Environmental Microbiology. 70 (10): 6023–30. Bibcode:2004ApEnM..70.6023H. doi:10.1128/AEM.70.10.6023-6030.2004. PMC 522133. PMID 15466546.
  2. ^ Holmes DE, Rotaru AE, Ueki T, Shrestha PM, Ferry JG, Lovley DR (2018). "Electron and Proton Flux for Carbon Dioxide Reduction in Methanosarcina barkeri During Direct Interspecies Electron Transfer". Frontiers in Microbiology. 9: 3109. doi:10.3389/fmicb.2018.03109. PMC 6315138. PMID 30631315.


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