TABLE 3.
Sensitivity of the V. cholerae mneA mutant to various metals compared to that of the wild typea
| Metal (metal salt, concn) | Mean diameter ± SD (mm) for: |
|
|---|---|---|
| Wild type | mneA mutant | |
| Manganese (MnCl2, 100 mM) | 11 ± 0 | 24 ± 1.7 |
| Nickel (NiCl2, 100 mM) | 11 ± 1 | 11 ± 1 |
| Copper (CuSO4, 100 mM) | 9 ± 0.6 | 9 ± 0 |
| Zinc (ZnSO4, 100 mM) | 9 ± 0.6 | 9 ± 0.6 |
| Vanadium (VCl3, 1 M) | 15 ± 2 | 15 ± 1 |
| Aluminum (AlCl3·6H2O, 1 M) | 14 ± 1.2 | 14 ± 0.6 |
| Chromium (CrCl3, 1 M) | 15 ± 0 | 14 ± 0.6 |
| Cobalt (CoCl2, 100 mM) | 18 ± 0.6 | 18 ± 1.5 |
| Cadmium (CdCl2, 100 mM) | 24 ± 1.2 | 22 ± 1.2 |
| Molybdenum (Na2MoO4, 100 mM) | 0 | 0 |
a
Solutions of the indicated metal salts were spotted onto plates seeded with V. cholerae. The diameter of the zone of inhibition was measured after overnight incubation.