TABLE 3.
Gluc bioluminescence is not affected by exposure to low pHa
| pH | Luminescence (RLU ml−1) from luxAB-expressing cells | Luminescence (RLU ml−1) from Gluc-expressing cells |
|---|---|---|
| 6.80 | 3.95 × 105 (± 0.77 × 105) | 3.13 × 105 (± 0.38 × 105) |
| 4.75 | 4.22 × 105 (± 0.94 × 105) | 7.39 × 105 (± 0.81 × 105) |
| 3.40 | 4.09 × 105 (± 0.10 × 105) | 5.19 × 105 (± 0.32 × 105) |
| 2.75 | 8.07 × 104 (± 3.14 × 104) | 3.73 × 105 (± 0.20 × 105) |
| 1.50 | 3.48 × 102 (± 0.18 × 102) | 3.90 × 105 (± 0.28 × 105) |
a
The data show luminescence (standard deviations in parentheses) measured after 1 h of exposure to LB medium acidified with HCl.