TABLE 4.
Metal content of cells growing aerobically and anaerobically
| Strain | Condition | Content (ng/109 cells ± SD) |
||
|---|---|---|---|---|
| Iron | Manganese | Zinc | ||
| Wild type | Aerobic | 35.7 ± 5.8a | 1.3 ± 0.2 | 25.1 ± 5.4d |
| Anaerobic | 50.4 ± 3.0a | 0.4 ± 0.3 | 23.1 ± 5.0d | |
| Null | Aerobic | 6.2 ± 4.5b | 13.6 ± 0.7c | 28.2 ± 2.1d |
| Anaerobic | 29.6 ± 8.4b | 2.8 ± 0.3c | 28.1 ± 4.8d | |
The difference in iron concentrations found between indicated sample sets is statistically significant as determined by two-way analysis of variance, Holm-Šidák multiple-comparison test, P value of <0.001.
The difference in iron concentrations found between indicated sample sets is statistically significant as determined by two-way analysis of variance, Holm-Šidák multiple-comparison test, P value of <0.0001.
The difference in manganese concentrations found between indicated samples sets is statistically significant as determined by two-way analysis of variance, Holm-Šidák multiple-comparison test, P value of <0.05.
Differences in zinc concentrations among all samples are not statistically significant as determined by two-way analysis of variance, Holm-Šidák multiple-comparison test, P value of >0.05.