TABLE 4

Maximum growth rate (μmax) of the hutCD mutants when growing in laboratory media

Minimal-M9-salt medium supplemented witha
Strain (genotype)Glucose and ammoniaUrocanateHistidine
SBW25 (wild type)0.425 ± 0.006 (a)0.350 ± 0.006 (b)0.342 ± 0.007 (b)
PBR805 (ΔhutC)0.412 ± 0.008 (a)0.357 ± 0.007 (b)0.350 ± 0.011 (b)
PBR806 (ΔhutD)0.431 ± 0.006 (a)0.259 ± 0.003 (c)0.274 ± 0.004 (c)
PBR807 (ΔhutCD)0.430 ± 0.012 (a)0.259 ± 0.007 (c)0.294 ± 0.006 (c)
  • a Two-way ANOVA revealed a highly significant difference among means (F2,83 = 310.48, P < 0.0001). Growth rates (μmax) identified by different letters are significantly different (P < 0.05) by Tukey's HSD.