TABLE 1.
Bacterial strains and plasmids used in this study
| P. fluorescens strain or plasmid | Characteristics | Source or reference |
|---|---|---|
| Strains | ||
| BL915 | Wild type | 10 |
| BL915ΔORF1 | Deletion in prnA of BL915, Prn−, Kmr | 9 |
| BL915ΔORF2 | Deletion in prnB of BL915, Prn−, Kmr | 9 |
| BL915ΔORF3 | Deletion in prnC of BL915, Prn−, Kmr | 9 |
| BL915ΔORF4 | Deletion in prnD of BL915, Prn−, Kmr | 9 |
| BL915ΔORF1–4 | Deletion in prnABCD of BL915, Prn−, Kmr | 9 |
| Plasmids | ||
| pPEH14(prnA) | pRK290 carrying Ptac functionally fused to the 1.6-kb prnA coding region | This study |
| pPEH14(prnB) | pRK290 carrying Ptac functionally fused to the 1.1-kb prnB coding region | This study |
| pPEH14(prnC) | pRK290 carrying Ptac functionally fused to the 1.7-kb prnC coding region | This study |
| pPEH14(prnD) | pRK290 carrying Ptac functionally fused to the 1.1-kb prnD coding region | This study |