Table 2.
Most probable number values for different types of microorganisms in materials from the microbial mat and puffball.
| Physiological group | MPN, cells mL−1 (±range) |
|
|---|---|---|
| Microbial mat (site 2) | Puffball (site 7) | |
| Aerobic heterotrophs | 5.13 × 107 (±4.69 × 107) | 5.39 × 106 (±4.92 × 106) |
| Anaerobic heterotrophs | 2.15 × 107 (±1.97 × 106) | 9.52 × 103 (±8.68 × 103) |
| Fe(III) reducers with acetate/lactatea | 6.82 × 105 (±2.54 × 105) | 9.78 × 103 (±8.92 × 103) |
| Fe(III) reducers with hydrogena | 2.20 × 104 (±2.01 × 104) | 8.57 × 102 (±7.83 × 102) |
| Aerobic Fe(II) oxidizers | 1.71 × 103 (±1.56 × 103) | 7.84 × 103 (±7.16 × 103) |