Table 2 Effects of oxygen and nitrate on the expression of denitrification genes in ΔMgfnr mutant
Promoter | Microaerobic conditions | Aerobic conditions | ||
|---|---|---|---|---|
+ NO3 - | - NO3 - | + NO3 - | - NO3 - | |
nap | 79.5 ± 41.8a | 67.0 ± 29.4 | 79.6 ± 38.5 | 85.4 ± 30.9 |
(16.2 ± 1.4)b | (15.9 ± 0.8) | (30.8 ± 2.6) | (28.6 ± 2.8) | |
nirS | 266.3 ± 10.8 | 76.5 ± 28.3 | 85.4 ± 23.0 | 88.4 ± 54.9 |
(124.0 ± 5.5) | (21.2 ± 9.6) | (14.2 ± 7.9) | (18.3 ± 7.8) | |
nor | 414.7 ± 52.8 | 150.9 ± 52.4 | 559.7 ± 74.0 | 493.4 ± 52.9 |
(762.8 ± 37.0) | (221.5 ± 52.4) | (204.4 ± 41.1) | (151.1 ± 10.5) | |
nosZ | 327.8 ± 32.9 | 153.2 ± 62.5 | 751.3 ± 76.1 | 525.7 ± 53.6 |
(519.0 ± 43.4) | (118.3 ± 33.3) | (146.6 ± 34.7) | (152.5 ± 21.9) | |