Table 1.
Summary of 16S rRNA gene sequences obtained from selected samples
| Phylogenetic affiliation and representative isolate(s)a | GenBank accession no. | % identityb | No. of sequences obtained |
|||
|---|---|---|---|---|---|---|
| Mobilization phase | Untreated sample | Nitrate-treated sample | Sulfate- and lactate-treated sample | |||
| Beta- and Gammaproteobacteria | ||||||
| Azospira oryzae | AY277622 | 95–99 | 7 | 32 | 20 | 22 |
| Sideroxydans lithotrophicus | DQ386859 | 95–99 | 0 | 4 | 17 | 0 |
| Other | 2 | 2 | 4 | 0 | ||
| Epsilonproteobacteria | ||||||
| Sulfurospirilllum NP4 | AY756183 | 95–99 | 1 | 0 | 1 | 0 |
| Deltaproteobacteria | ||||||
| Geobacter sulfurreducens | U13928 | 95–99 | 8 | 2 | 2 | 1 |
| Geobacter uraniireducens Rf4 | CP000698 | 95–99 | 10 | 1 | 1 | 1 |
| Desulfobulbus propionicus | 0 | 0 | 0 | 0 | ||
| Desulfovibrio putealis | AY574979 | 95–99 | 0 | 0 | 0 | 12 |
| Bacteroidetes | 3 | 0 | 1 | 0 | ||
| Clostridiales | 14 | 4 | 0 | 10 | ||
| Total | 45 | 45 | 46 | 46 | ||
a
Sequence chosen from an isolate that is closely related to the sequences obtained in this study.
b
Approximate identity between the sequences from the microcosms and the representative isolate.