Figure 3
From: Genetic characterization of psp encoding the DING protein in Pseudomonas fluorescens SBW25
Fitness of P. fluorescens SBW25 and derived mutants. Fitness of SBW25 (wt) and mutants PBR826 (Δpsp, psp) and PBR827 (ΔpstC, pst) relative to SBW25-lacZ was measured with cells grown in Pi-rich (PR) and Pi-limited (PL) media. Data are means and standard errors of ~8 independent cultures. A fitness of zero indicates that the fitness of the mutant is identical to wild type (a negative value indicates a reduction in fitness relative to wild type). Bars identified by different letters are significantly different (P < 0.05) by Tukey's HSD.