TABLE 1.
Strains and plasmids used in this study
| Strain or plasmid | Relevant properties | Reference |
|---|---|---|
| Strains | ||
| SJW1103 | 53 | |
| χ3306 | Virulence strain, gyrA | 24 |
| CS2724 | ΔhilC in χ3306 | 47 |
| CS2725 | ΔhilD in χ3306 | 47 |
| CS2802 | ΔhilC ΔhilD in χ3306 | 47 |
| CS3222 | hilA::Km in χ3306 | This study |
| AY001 | barA::Km ΔbarA in SJW1103 | This study |
| AY002 | envZ::Cm ΔenvZ in SJW1103 | This study |
| AY003 | sirA::Km ΔsirA in SJW1103 | This study |
| Plasmids | ||
| pTKY 748 | hilA Apr | This study |
| pZA4 lacIq | lacIq Specr | This study |