TABLE 2.
Catalase activity in V. vulnificus wild-type strain C7184o and rpoS mutant strain AH1
| Strain | Growth phase | Catalase activity after H2O2 treatmenta | Catalase activity (U/mg of protein in cells) |
|---|---|---|---|
| C7184o | Logarithmic | − | 0.2 |
| Logarithmic | + | 5.8 | |
| Stationary | − | 4.1 | |
| AH1 | Logarithmic | − | 0.3 |
| Logarithmic | + | 4.2 | |
| Stationary | − | 2.6 |
a
50 μM H2O2 was added to the cells at early logarithmic growth phase, and the culture was incubated for an additional 1 h. The presence (+) or absence (−) of catalase activity is shown.