Dissimilatory metal-reducing bacteria (DMRB) are important components of the microbial community residing in redox-stratified freshwater and marine environments. DMRB occupy a central position in the biogeochemical cycles of metals, metalloids and radionuclides, and serve as catalysts for a variety of other environmentally important processes including biomineralization, biocorrosion, bioremediation and mediators of ground water quality. DMRB are presented, however, with a unique physiological challenge: they are required to respire anaerobically on terminal electron acceptors which are either highly insoluble (e.g., Fe(III)- and Mn(IV)-oxides) and reduced to soluble end-products or highly soluble (e.g., U(VI) and Tc(VII)) and reduced to insoluble end-products. To...
Enzymology of Electron Transport: Energy Generation With Geochemical Consequences
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Thomas J. DiChristina, Jim K. Fredrickson, John M. Zachara; Enzymology of Electron Transport: Energy Generation With Geochemical Consequences. Reviews in Mineralogy and Geochemistry 2005;; 59 (1): 27–52. doi: https://doi.org/10.2138/rmg.2005.59.3
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