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Induction of katA-lacZ fusion by H2O2 in strains 1021-pRKAZ, 1021-pKAZ, oxyR-pRKAZ, and oxyR-pdRKAZ
| Strain | β-Galactosidase activitya (Miller units) (mean ± SD)
|
|
|---|---|---|
| −H2O2 | +H2O2 | |
| 1021-pRKAZ | 444 ± 97 | 2,222 ± 265 |
| 1021-pdRKAZ | 509 ± 130 | 1,960 ± 320 |
| oxyR-pRKAZ | 390 ± 157 | 1,825 ± 405 |
| oxyR-pdRKAZ | 1,338 ± 156 | 1,292 ± 198 |
Activity was measured after a 1-h treatment (+) or not (−) with 1 mM H2O2.
