TABLE 3.
Comparison of qSO42− values determined by different experimental methods
| Expt | qSO42− (mol of SO42− cell−1 day−1)
|
|||||
|---|---|---|---|---|---|---|
| T-MPN method with natural media | N-MPN method with API-RST medium | N-MPN method with Baar’s medium | N-MPN method with Postgate’s B medium | T-MPN method with DSM medium 194 | Direct count method with DSM medium 194a | |
| Sediment slurry | 75 × 10−15 | 228 × 10−12 | ||||
| Sediment slurry | 109 × 10−15 | 177 × 10−12 | 177 × 10−12 | 709 × 10−12 | ||
| Activated sludge | 657 × 10−15 | |||||
| Desulfobulbus propionicus | 243 × 10−15 | 41 × 10−15 | ||||
a
Cell numbers were determined with a Bürker-Türk counting chamber.