Journal
BIOTECHNOLOGY LETTERS
Volume 31, Issue 6, Pages 845-849Publisher
SPRINGER
DOI: 10.1007/s10529-009-9946-z
Keywords
Dissimilatory metal reduction; Enterobacter cloacae; Vanadate; Vanadate reductase; Vanadium
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Funding
- National Research Foundation [GUN-2069261]
- National Science Foundation/NASA LExEn program [EAR9714214, EAR-9978267]
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Dissimilatory reduction of vanadium(V) by Enterobacter cloacae EV-SA01, isolated from a gold mine at 1.6 km below surface, is shown to occur anaerobically as well as aerobically. Growth rates were unaffected by up to 2 mM V2O5. Reduction of vanadium(V) was growth phase-dependent and resulted in cell deformities and precipitation of the vanadium in its lower oxidation states. The vanadate reductase activity was membrane-associated and coupled the oxidation of NADH to the reduction of vanadate.
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