TABLE 1.
Bacterial strains used in this study
| Strain | Descriptiona | Additional information | Source or reference |
|---|---|---|---|
| P. fluorescens | |||
| SBW25 | Wild type | Sugar beet phytosphere isolate | 2 |
| SBW25EeZY6KX | Kmr, lacZY xylE | Genetically engineered variant of SBW25 | 2 |
| SBW25EeZY6KX(pQBR103) | Kmr, lacZY xylE, Hgr | Previous strain containing a plasmid encoding Hgr | 16 |
| SBW25Rif | Rifr | Spontaneous rifampin-resistant mutant of SBW25 | This study |
| MCP1 | Wild type | Sugar beet phytosphere isolate | This study |
| S. liquefaciens | |||
| CP6 | Wild type | Sugar beet phytosphere isolate | This study |
a
Kmr, kanamycin resistant; lacZY, β-galactosidase and lactose permease activity; xylE, catechol-2,3-dioxygenase activity; Hgr, mercury resistant; Rifr, rifampin resistant.