TABLE 1.
Most-probable-number counts of HS oxidizersa
| Environment sampled | Mean count (cells/g) ± SD |
|---|---|
| Forest soil | 4.27 (± 2.14) × 106 |
| Aquifer sediment (Maryland) | 1.49 (± 6.10) × 104 |
| Aquifer sediment (Sorth Carolina) | 2.31 (± 1.33) × 101 |
| Pristine aquatic sediment (Illinois) | 9.33 (± 4.17) × 106 |
| Marine sediment (Florida) | 2.31 (± 1.33) × 102 |
| Marine sediment (California) | 2.15 (± 8.11) × 102 |
a
Enumeration studies were performed with AHDS (10 mM) as the electron donor, nitrate (10 mM) as the electron acceptor, and 0.1 mM acetate as the carbon source.