Fig. 2

a Growth of P. aeruginosa RR1 RK2-GFPuv at 24 and 48 h post inoculation with and without kanamycin supplementation. b P. aeruginosa RR1 RK2-GFPuv plasmid maintenance at 24 and 48 h post inoculation in the presence of 50 µg/ml kanamycin. c Growth of P. oleovorans RK2-GFPuv at 24 and 48 h post inoculation with and without kanamycin supplementation. d P. oleovorans RK2-GFPuv plasmid maintenance at 24 and 48 h post inoculation in the presence of 50 µg/ml kanamycin. For both strains, culture conditions that yielded the best growth on hexadecane were used. Namely 0.46% w/v hexadecane with 1.9 g/L NH₄NO₃ for P. aeruginosa RR1 and 0.46% w/v hexadecane with 2.5 g/L NH₄Cl for P. oleovorans. Error bars represent standard deviations from the mean values of three replicates