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MICs of tetracycline, chlortetracycline, and oxytetracycline for E. coli clones and A. pyogenes strain BBR1
| Strain | MIC (μg/ml) of:
|
||
|---|---|---|---|
| Tetracycline | Chlortetracycline | Oxytetracycline | |
| DH5αMCR(pBC KS) | 0.25 | 0.12 | 1 |
| DH5αMCR(pJGS259) | 16 | 8 | 32 |
| DH5αMCR(pJGS264) | 0.25 | 0.12 | 0.5 |
| DH5αMCR(pJGS279) | 32 | 32 | 64 |
| BBR1 | 8 | 8 | 8 |
| BBR1 + tetracyclinea | 8 | 8 | 8 |
BBR1 was grown on BHI-blood agar supplemented with 1 μg of tetracycline per ml prior to determination of the MIC.
