Fig. 6

Effect of flavodoxin FldX1 in P. xenovorans on 4-HPA degradation in soil microcosms. A 4-HPA degraders and (B) 4-HPA degraders resistant to kanamycin. (C) 4-HPA degradation in soil microcosms. D Prevalence of plasmids from P. xenovorans recombinant strains in soil microcosms. Significant differences were determined using Fisher's LSD test (p < 0.05). Lowercase letters above the error bars indicate significant differences between treatments. Asterisks indicate value = 0. Each value is an average ± SD of the three replicates of the experiment