TABLE 2.
Influence of the addition of extracellular DNA on the pH of bacterial growth media
| Medium | pH |
|---|---|
| LB | 7.02 |
| LB + 0.03% DNA | 6.51 |
| LB + 0.06% DNA | 6.4 |
| LB + 0.125% DNA | 6.12 |
| LB + 0.20% DNA | 5.75 |
| LB + 0.25% DNA | 5.52 |
| LB + 0.50% DNA | 4.81 |
| LB + 1.00% DNA | 4.22 |
| BM2 | 7 |
| BM2 + 0.03% DNA | 7.02 |
| BM2 + 0.06% DNA | 6.95 |
| BM2 + 0.125% DNA | 6.91 |
| BM2 + 0.25% DNA | 6.78 |
| BM2 + 0.50% DNA | 6.4 |
| BM2 + 1.00% DNA | 5.73 |
| LB (pH 5.5) | 5.5 |
| LB (pH 5.5) + l-Arg (0.4%) | 8.25 |
| LB + 0.20% DNA + 10 μM Mg2+ | 5.76 |
| LB + 0.20% DNA + 10 μM Mg2+ + 10 mM Tris | 7 |
| LB + 0.20% DNA + 10 mM NaHCO3 | 7.4 |