TABLE 5.
Efficiencies of transformation of glycine-treated streptococci and related bacteria
| Bacterium | Transformation efficiency (transformants/μg of DNA)a
|
|
|---|---|---|
| pNZ123 | pDL278 | |
| S. salivarius ATCC 25975 | 1.7 × 105 | 2.8 × 103 |
| S. sanguis ATCC 10556 | 0 | 1.0 × 103 |
| S. sobrinus 6715 | 0 | 39 |
| S. thermophilus SMQ-310 | 8.8 × 103 | 2.6 × 103 |
| S. thermophilus ATCC 19258 | 19 | 23 |
| S. vestibularis ATCC 49124 | 1.7 × 105 | 8.4 × 104 |
| S. mutans XS123 | 0 | 4.6 × 103 |
| L. lactis LM 0230 | 3.7 × 104 | 9.3 × 103 |
| P. acidilactici SMQ-250 | 0 | 112 |
a
All cells were transformed with 1 μg of plasmid DNA.