TABLE 3.
Susceptibility of S. aureus strains to tetracycline, fatty acids, quinolones, chloramphenicol, and erythromycin
| Strain | MIC (μg/ml) ofa: |
|||||||
|---|---|---|---|---|---|---|---|---|
| Undecanoic acid | Palmitoleic acid | Linoleic acid | NOR | CIP | TET | CHL | ERY | |
| RN6390 | 500 | 500 | 1,000 | 0.5 | 0.25 | 0.06 | 4 | 0.06 |
| QT1 (ΔmgrA) | 1,500 | 1,500 | 2,500 | 4 | 2 | 4 | 4 | 0.06 |
| QT7 (Δtet38) | 250 | 250 | 500 | 0.5 | 0.25 | 0.03 | 2 | 0.03 |
| QT21 (ΔtetR21) | 1,500 | 1,000 | 2,000 | 1 | 0.5 | 0.5 | 32 | 0.25 |
| QT23 (Δtet38 ΔtetR21) | 250 | 500 | 1,000 | 1 | 0.5 | 0.06 | 32 | 0.25 |
| RN6390(pLI50) | 500 | 500 | 1,000 | 0.5 | 0.25 | 0.06 | 4 | 0.06 |
| QT1(pLI50) | 1,500 | 1,500 | 2,500 | 4 | 2 | 4 | 4 | 0.06 |
| QT1(pLI50-mgrA) | 500 | 500 | 1,000 | 0.5 | 0.25 | 0.06 | 4 | 0.06 |
| QT21(pLI50) | 1,500 | 1,000 | 2,000 | 1 | 0.5 | 0.5 | 32 | 0.25 |
| QT21(pLI50-tetR21) | 500 | 500 | 1,000 | 0.5 | 0.25 | 0.06 | 4 | 0.06 |
a
NOR, norfloxacin; CIP, ciprofloxacin; TET, tetracycline; CHL, chloramphenicol; ERY, erythromycin.