TABLE 1.
Characteristics of bacterial strains used in this study
| Strain | Relevant genotype | Source or reference |
|---|---|---|
| TA15 | MelBLid nhaA+ nhaB+ lacZY | 11 |
| RK33Z | TA15 nhaA3:: kan (nhaA::lacZ)1 (hyb) thr-1 | 16 |
| W3313-2S | TA15 nhaR1 (NhaAup) | 5 |
| RK20 (ΔnhaA) | TA15 nhaA2:: kan thr-1 | 16 |
| OR100 (ΔnhaR) | TA15 nhaR1:: kan thr-1 | 29 |
| OR200 (ΔnhaA ΔnhaR) | TA15 nhaA4 nhaR2:: kan thr-1 | 29 |
| GM230 (hns) | MC4100 hns-205::Tn10 | 15 |
| PD32 (hns)a | MC4100 hns-206::amp | 8 |
| GSO15 (rpoS)b | rpoS::Tn10 | 1 |
| NDZ1 (ΔnhaR) | RK33Z nhaR1::kan thr-1 | 10 |
| TA15D2 | TA15 hns-206::amp | P1 transduction, PD32→TA15 |
| OR100D2 | OR100 hns-206::amp | P1 transduction, PD32→OR100 |
| OR200D1 | OR200 hns-205::Tn10 | P1 transduction, GM230→OR200 |
| TA15 rpoS | TA15 rpoS::Tn10 | P1 transduction, GSO15→TA15 |
| OR200 rpoS | OR200 rpoS::Tn10 | P1 transduction, GSO15→OR200 |
| TA15D2 rpoS | TA15D2 rpoS::Tn10 | P1 transduction, GSO15→TA15D2 |
a
Kindly provided by E. Bremer (Marburg, Germany).
b
Kindly provided by S. Altuvia (Jerusalem, Israel).