TABLE 1.
Acid-adaptive response of S. sobrinus 6715 and SL1 and S. mutans UA159a
| Organism | Growth pH | 50-min glycolytic pH (final pH) | % Survival after 90 min |
|---|---|---|---|
| S. sobrinus 6715 | 7.0 | 3.57 (0.09) | 2.5 × 10−3 (1 × 10−3) |
| 5.0 | 3.21 (0.03) | 4.9 × 10−1 (2.7 × 10−1) | |
| S. sobrinus SL1 | 7.0 | 3.65 (0.02) | 3.8 × 10−2 (1 × 10−2) |
| 5.0 | 3.15 (0.09) | 4.7 × 10−1 (0.9 × 10−1) | |
| S. mutans UA159 | 7.0 | 3.52 (0.10) | 9.0 × 10−3 (1.0 × 10−3) |
| 5.0 | 3.29 (0.18) | 3.8 × 10−1 (1.8 × 10−1) |
a
The results are the means (± standard deviations) of at least three independent experiments.