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Bacterial strains and plasmids used in this study
| Plasmid or strain | Relevant characteristics | Source or reference |
|---|---|---|
| Plasmids | ||
| pRK404 | Tcr broad-host-range control plasmid | 10 |
| pJG51A | pRK404 carrying the bacA gene | 14 |
| S. meliloti strains | ||
| Rm1021 | Wild-type strain; Smr derivative of SU47 | F. Ausubel |
| Rm8002 | Rm1021 Pho− | 26 |
| SmGF1 | Rm1021, bacA654::Spc (ΔbacA null) | This study |
| SmGC1 | Rm1021, lpsB389::TnphoA | 5 |
| SmGF2 | SmGF1, lpsB389::TnphoA | This study |
