TABLE 2.
Sensitivity of L. cremoris NZ9000, MG1363 wpsH, and NZ9000 wpsA strains and their respective pbp2b derivatives to phages sk1, p2, MCC1, and MCC17
| Strain or strain derivative | Mean EOP ± SEMa |
|||
|---|---|---|---|---|
| sk1 | p2 | MCC1 | MCC17 | |
| NZ9000 | 1 | 1 | 1 | 1 |
| wpsH | ≤3 × 10−9 | (1 ± 1.68) × 10−8 | 0.16 ± 0.07 | (1 ± 0.21) × 10−3 |
| wpsH pbp2b-1 | (2.67 ± 0.95) × 10−6 | (1.95 ± 1.30) × 10−8 | 0.23 ± 0.15 | (7.94 ± 0.97) × 10−3 |
| wpsH pbp2b-2 | (2.87 ± 1.34) × 10−7 | (1.61 ± 1.45) × 10−8 | 0.21 ± 0.06 | (5.76 ± 1.16) × 10−3 |
| wpsA | ≤3 × 10−9 | ≤6 × 10−9 | ≤4 × 10−9 | ≤2 × 10−9 |
| wpsA pbp2b-1 | ≤3 × 10−9 | ≤6 × 10−9 | ≤4 × 10−9 | ≤2 × 10−9 |
| wpsA pbp2b-2 | ≤3 × 10−9 | ≤6 × 10−9 | ≤4 × 10−9 | ≤2 × 10−9 |
a
EOP values were calculated as the ratio of the phage titer on the tested strain by the phage titer on NZ9000. Values are means of three independent experiments.