Table 1.
Kinetic growth parameters: growth rate μ, biomass yield from substrate YX/S, for different P. putida strains
Genotype | WT | pSEVA224‐cscA | pSEVA224‐cscAB | PP_0075::cscA | PP_3398::cscAB |
---|---|---|---|---|---|
Mediuma | 1.36 g/L Glc + 1.5 g/L Fru | 3 g/L Sucrose + 15 mg/L Km | 3 g/L Sucrose + 15 mg/L Km | 3 g/L Sucrose | 3 g/L Sucrose |
μ [h−1] | 0.45 ± 0.02e | 0.36 ± 0.04b | 0.38 ± 0.01b | 0.27 ± 0.05b | 0.27 ± 0.01e |
Yxsd [g/g] | 0.172 ± 0.009b | 0.253 | 0.269 | 0.210 ± 0.005b | 0.218 ± 0.003e |
lag phase [h]c | not determined | 4.2 ± 1.4 | 3.4 ± 0.3 | not detectable | not detectable |
Glc, glucose; Fru, fructose; Km, kanamycin.
M9 was used as standard medium, only substrates and additives are noted here.
Standard deviations calculated from three biological replicates.
Duration of the lag phases were estimated from the intercept of the exponential growth curve with the initial OD600, for genomic integrated strains the initial OD was a lot higher which led to no observable lag phase.
During exponential growth phase.
Standard deviations calculated from two biological replicates.