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Evidence for Iron-Dependent Nitrate Respiration in the Dissimilatory Iron-Reducing Bacterium Geobacter metallireducens |
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| Authors: | John M Senko and John F Stolz |
| Abstract: | The dissimilatory iron-reducing bacterium Geobacter metallireducens was found to require iron at a concentration in excess of 50 μM for continuous cultivation on nitrate. Growth yield (~3-fold), cytochrome c content (~7-fold), and nitrate (~4.5-fold) and nitrite (~70-fold) reductase activities were all increased significantly when the growth medium was amended with 500 μM iron. |
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