Table 2 Statistical comparison of the impact of DO concentrations on relative mRNA concentrations in exponential (E) and stationary (S) phase cultures (p values < 5.0 × 10-2 indicate statistically significant differences).
DO (mg O2/L) comparison | p = | |||||||
|---|---|---|---|---|---|---|---|---|
| Â | amoA | hao | nirK | norB | ||||
| Â | E | S | E | S | E | S | E | S |
0.5 -- 1.5 | 1.32 × 10-4 | 1.64 × 10 -5 | 4.86 × 10-5 | 3.3 × 10 -5 | 9.48 × 10 -1 | 2.9 × 10 -5 | 6.29 × 10 -1 | 4.63 × 10 -6 |
1.5 -- 3.0 | 1.2 × 10-5 | 1.98 × 10 -3 | 2.26 × 10-11 | 2.16 × 10 -3 | 1.22 × 10-5 | 1.78 × 10 -3 | 1.83 × 10-7 | 7.52 × 10 -1 |