TABLE 2.
β-Galactosidase activities of exponentially growing cells (OD600, 0.4) bearing different Φ(adhE-lacZ) operon fusions in LB-glucose medium
| Strain | Genotype | β-Galactosidase activity (Miller units)a
|
||
|---|---|---|---|---|
| +O2 | −O2 | −O2/+O2 ratio | ||
| ECL4013 | Φ(adhE-lacZ)656 | 1,000 ± 100 | 9,200 ± 530 | 9.3 |
| ECL4028 | Φ(adhE-lacZ)656 fis::kan | 910 ± 60 | 890 ± 100 | 0.9 |
| ECL4022 | Φ(adhE-lacZ)656 fnr::Tn10 | 958 ± 46 | 9,880 ± 240 | 10.3 |
| ECL4011 | Φ(adhE-lacZ)291 | 300 ± 50 | 3,600 ± 250 | 9.0 |
| ECL4027 | Φ(adhE-lacZ)291 fis::kan | 380 ± 40 | 3,000 ± 350 | 8.0 |
| ECL4020 | Φ(adhE-lacZ)291 fnr::Tn10 | 330 ± 45 | 345 ± 32 | 1.1 |
a
+O2, aerobic; −O2, anaerobic.