@article {3135,
	title = {Sulfur oxidation to sulfate coupled with electron transfer to electrodes by Desulfuromonas strain TZ1.},
	journal = {Microbiology (Reading)},
	volume = {160},
	year = {2014},
	month = {2014 Jan},
	pages = {123-129},
	abstract = {<p>Microbial oxidation of elemental sulfur with an electrode serving as the electron acceptor is of interest because this may play an important role in the recovery of electrons from sulfidic wastes and for current production in marine benthic microbial fuel cells. Enrichments initiated with a marine sediment inoculum, with elemental sulfur as the electron donor and a positively poised (+300 mV versus Ag/AgCl) anode as the electron acceptor, yielded an anode biofilm with a diversity of micro-organisms, including Thiobacillus, Sulfurimonas, Pseudomonas, Clostridium and Desulfuromonas species. Further enrichment of the anode biofilm inoculum in medium with elemental sulfur as the electron donor and Fe(III) oxide as the electron acceptor, followed by isolation in solidified sulfur/Fe(III) medium yielded a strain of Desulfuromonas, designated strain TZ1. Strain TZ1 effectively oxidized elemental sulfur to sulfate with an anode serving as the sole electron acceptor, at rates faster than Desulfobulbus propionicus, the only other organism in pure culture previously shown to oxidize S{\textdegree} with current production. The abundance of Desulfuromonas species enriched on the anodes of marine benthic fuel cells has previously been interpreted as acetate oxidation driving current production, but the results presented here suggest that sulfur-driven current production is a likely alternative.</p>},
	keywords = {Bioelectric Energy Sources, Desulfuromonas, DNA, Bacterial, Electricity, Electrodes, Geologic Sediments, Molecular Sequence Data, Oxidation-Reduction, Sequence Analysis, DNA, Sulfates, Sulfur},
	issn = {1465-2080},
	doi = {10.1099/mic.0.069930-0},
	author = {Zhang, Tian and Bain, Timothy S and Barlett, Melissa A and Dar, Shabir A and Snoeyenbos-West, Oona L and Nevin, Kelly P and Lovley, Derek R}
}
@article {428,
	title = {Constraint-based modeling analysis of the metabolism of two Pelobacter species.},
	journal = {BMC Syst Biol},
	volume = {4},
	year = {2010},
	month = {2010},
	pages = {174},
	abstract = {BACKGROUND: Pelobacter species are commonly found in a number of subsurface environments, and are unique members of the Geobacteraceae family. They are phylogenetically intertwined with both Geobacter and Desulfuromonas species. Pelobacter species likely play important roles in the fermentative degradation of unusual organic matters and syntrophic metabolism in the natural environments, and are of interest for applications in bioremediation and microbial fuel cells.

RESULTS: In order to better understand the physiology of Pelobacter species, genome-scale metabolic models for Pelobacter carbinolicus and Pelobacter propionicus were developed. Model development was greatly aided by the availability of models of the closely related Geobacter sulfurreducens and G. metallireducens. The reconstructed P. carbinolicus model contains 741 genes and 708 reactions, whereas the reconstructed P. propionicus model contains 661 genes and 650 reactions. A total of 470 reactions are shared among the two Pelobacter models and the two Geobacter models. The different reactions between the Pelobacter and Geobacter models reflect some unique metabolic capabilities such as fermentative growth for both Pelobacter species. The reconstructed Pelobacter models were validated by simulating published growth conditions including fermentations, hydrogen production in syntrophic co-culture conditions, hydrogen utilization, and Fe(III) reduction. Simulation results matched well with experimental data and indicated the accuracy of the models.

CONCLUSIONS: We have developed genome-scale metabolic models of P. carbinolicus and P. propionicus. These models of Pelobacter metabolism can now be incorporated into the growing repertoire of genome scale models of the Geobacteraceae family to aid in describing the growth and activity of these organisms in anoxic environments and in the study of their roles and interactions in the subsurface microbial community.},
	keywords = {Anaerobiosis, Citric Acid Cycle, Desulfuromonas, Electron Transport, Energy Metabolism, Gene Expression Regulation, Bacterial, Models, Biological, Reproducibility of Results, Sulfur},
	issn = {1752-0509},
	doi = {10.1186/1752-0509-4-174},
	author = {Sun, Jun and Haveman, Shelley A and Bui, Olivia and Fahland, Tom R and Lovley, Derek R}
}
@article {547,
	title = {Comparison of 16S rRNA, nifD, recA, gyrB, rpoB and fusA genes within the family Geobacteraceae fam. nov.},
	journal = {Int J Syst Evol Microbiol},
	volume = {54},
	year = {2004},
	month = {2004 Sep},
	pages = {1591-9},
	abstract = {The sequences of five conserved genes, in addition to the 16S rRNA gene, were investigated in 30 members of the Geobacteraceae fam. nov. All members of the Geobacteraceae examined contained nifD, suggesting that they are capable of nitrogen fixation, which may explain their ability to compete effectively in nitrogen-poor subsurface environments undergoing remediation for petroleum or metal contamination. The phylogenies predicted from rpoB, gyrB, fusA, recA and nifD were generally in agreement with the phylogeny predicted from 16S rRNA gene sequences. Furthermore, phylogenetic analysis of concatemers constructed from all five protein-coding genes corresponded closely with the 16S rRNA gene-based phylogeny. This study demonstrated that the Geobacteraceae is a phylogenetically coherent family within the delta-subclass of the Proteobacteria that is composed of three distinct phylogenetic clusters: Geobacter, Desulfuromonas and Desulfuromusa. The sequence data provided here will make it possible to discriminate better between physiologically distinct members of the Geobacteraceae, such as Pelobacter propionicus and Geobacter species, in geobacteraceae-dominated microbial communities and greatly expands the potential to identify geobacteraceae sequences in libraries of environmental genomic DNA.},
	keywords = {Bacterial Proteins, Deltaproteobacteria, Desulfuromonas, DNA Gyrase, DNA, Bacterial, DNA, Ribosomal, DNA-Directed RNA Polymerases, Genes, Bacterial, Genes, rRNA, Geobacter, Molecular Sequence Data, Nitrogen Fixation, Peptide Elongation Factor G, Phylogeny, Rec A Recombinases, RNA, Bacterial, RNA, Ribosomal, 16S, Sequence Analysis, DNA},
	issn = {1466-5026},
	doi = {10.1099/ijs.0.02958-0},
	author = {Holmes, Dawn E and Nevin, Kelly P and Lovley, Derek R}
}
