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Sulfates, metabolism (4276 words) |
 | There were distinct horizontal and vertical geochemical gradients that could be attributed in large part to the manner in which acetate was distributed in the aquifer, with more reduction of Fe(III) and sulfate occurring at greater depths and closer to the point of acetate injection. |
| Clone libraries of 16S rRNA genes derived from sediments and groundwater indicated an enrichment of sulfate-reducing bacteria in the order Desulfobacterales in sediment and groundwater samples. |
| These samples were collected nearest the injection gallery where microbially reducible Fe(III) oxides were highly depleted, groundwater sulfate concentrations were low, and increases in acid volatile sulfide were observed in the sediment. |
| Microbiological and Geochemical Heterogeneity in an In Situ Uranium Bioremediation Field Site -- Vrionis et al. 71 ... (4724 words) |
| The various bacterial taxa are represented based on their relative occurrence in groundwater samples. |
| -proteob." was applied to 16S rRNA gene sequences that fell into the Deltaproteobacteria but did not group with the Geobacteraceae, the Desulfovibrionaceae, or the three families comprising the order Desulfobacterales (Desulfoarculaceae, Desulfobacteraceae, and Desulfobulbaceae). |
| The designation unclassified indicates sequences that could not be unequivocally classified with any one group due to insufficient similarity. |
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