Table 2. Comparison of tolerance of strains of A. ferriphilus to elevated concentrations (mmol l− 1) of selected transition metals, magnesium and NaCl.
Numbers indicate MICs and (in parentheses) the maximum concentrations at which growth was observed.
| Strain | Fe(II) | Fe(III) | Co | Cu | Mo | Ni | Zn | Mg | NaCl* |
|---|---|---|---|---|---|---|---|---|---|
| M20T | 1000 (900) | 500 (300) | 600 (400) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 1000 (900) | 500 (250) |
| JCM 7812 | 700 (500) | 500 (300) | 600 (400) | 300 (100) | < 0.1 | 500 (300) | 800 (700) | 900 (800) | 500 (250) |
| Malay | 1200 (1000) | 500 (300) | 600 (400) | 300 (100) | < 0.1 | 500 (300) | 800 (700) | 1200 (1000) | 500 (250) |
| Riv13 | 1200 (1000) | 500 (300) | 600 (400) | 300 (100) | < 0.1 | 500 (300) | 700 (600) | 1200 (1000) | 500 (250) |
| ST2 | 1200 (1000) | 500 (300) | 600 (400) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 1200 (1000) | 1000 (800) |
| PS102 | 900 (700) | 300 (100) | 600 (400) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 900 (800) | 500 (250) |
| PS104 | 1200 (1000) | 500 (300) | 800 (600) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 1200 (1000) | 500 (250) |
| PS107 | 1000 (900) | 500 (300) | 400 (200) | 300 (100) | < 0.1 | 300 (100) | 800 (700) | 1200 (1000) | 500 (250) |
| KCT10 | 1000 (900) | 300 (100) | 600 (400) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 1000 (900) | 700 (500) |
| KCT14 | 1200 (1000) | 500 (300) | 600 (400) | 500 (300) | < 0.1 | 500 (300) | 800 (700) | 1200 (1000) | 500 (250) |
| KCT17 | 700 (500) | 100 (50) | 600 (400) | 500 (300) | < 0.1 | 300 (100) | 600 (400) | 1200 (1000) | 500 (250) |
*
Grown on elemental sulfur; all other data refer to cultures grown on ferrous iron.