TABLE 3.
Measurements of β-galactosidase activity in strains of P. aeruginosa harboring the aguB::lacZ translational fusion pGU103
| Strain (genotype) | Supplementsa | β-Galactosidase sp actb (nmol/min/mg) |
|---|---|---|
| PAO1 (wild type) | Glu | 88 |
| Glu + Agm | 703 | |
| Glu + Put | 100 | |
| Glu + Spd | 86 | |
| Glu + Arg | 133 | |
| PAO5003 (aguR) | Glu | 1,026 |
| Glu + Agm | 1,111 | |
| Glu + Put | 1,294 | |
| Glu + Spd | 1,000 | |
| Glu + Arg | 1,063 |
a
Cells were grown in MMP medium with supplements as indicated at 20 mM. Glu, glutamate; Agm, agmatine; Put, putrescine; Spd, spermidine; Arg, arginine.
b
Values are the averages of two measurements for each growth condition. The standard errors (not shown) were all below 5% of the corresponding averages.