Strain | Doubling time (h)* | Urease activity |
---|
 |  | Qualitative** | Quantitative*** |
---|
1330 | 5.1 | + | 9.28 |
1330Δure 1K | 5.8 | - | ~0 |
1330Δure 2K | 5.3 | + | 9.38 |
1330Δure 2C | 5.1 | + | 8.28 |
1330Δure 1K1330Δure 2C | 6.5 | - | ~0 |
- *A representative experiment was used to calculate the generation time.
- ** + represents positive or pink color and – represents negative or yellow color of the uninoculated test broth; the color remained unchanged even 96 h after inoculation
- ***Specific activity μmoles/min/mg of protein.