TABLE 2.
In vitro conjugal transfer of tetracycline resistance from Lactococcus lactis strains
| Donor | Recipient | Transfer frequency (no. of transconjugants/recipient)a | Transferred gene |
|---|---|---|---|
| IBB160 | L. lactis Bu2-60 | 1.4 × 10−7 (1.43) | tet(S) |
| IBB224 | L. lactis Bu2-60 | 1.3 × 10−5 (0.42) | tet(M) |
| E. faecalis JH2-2 | 1.0 × 10−6 (2.0) | tet(M) | |
| IBB477 | L. lactis Bu2-60 | 5.73 × 10−5 (0.24) | tet(M) |
| E. faecalis JH2-2 | 1.3 × 10−6 (0.98) | tet(M) | |
| IBB487 | L. lactis Bu2-60 | 1.88 × 10−4 (1.16) | tet(M) |
| E. faecalis JH2-2 | 6.47 × 10−6 (0.67) | tet(M) |
a
Data are average values for 10 different trials, and standard deviations are given in parentheses.