Evidence for involvement of an electron shuttle in electricity generation by Geothrix fermentans

Article Abstract:

A report of complete oxidation of organic compounds linked to electrode reduction by an isolate outside of the Proteobacteria is presented. The finding that Geothrix fermentans can oxidize acetate and other substrates with an electrode serving as the role electron acceptor suggests that the enrichment of organisms closely related to G. fermentans on energy-harvesting electrodes in freshwater sediment might be due to these organisms gaining an energetic advantage by growth on or near the electrode.

Bacterial proteins, Microelectrodes

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Resistance of solid-phase U(VI) to microbial reduction during in situ bioremediation of uranium-contaminated groundwater

Article Abstract:

A study is conducted to demonstrate the specification of solid-phase uranium in uranium-contaminated subsurface sediments undergoing uranium bioremediation. The findings indicate that although microbial reduction of soluble U(VI) readily immobilized uranium as U(IV), a substantial portion of the U(VI) in the aquifer is strongly associated with the sediments and not microbially reducible.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), All Other Basic Inorganic Chemical Manufacturing, Uranium Metal, Industrial inorganic chemicals, not elsewhere classified, Reprocessed Activated Uranium, Bioremediation, Water, Underground, Groundwater, Uranium

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