FIG 6.

Photoheterotrophic growth of constructed R. sphaeroides strains expressing heterologous aceBA involved in the glyoxylate bypass with acetate and l-glutamate in the absence of NH₄Cl under an Ar atmosphere. (A and E) H₂ production. (B and F) Growth. (C and G) Acetate consumption. (D and H) l-Glutamate consumption. Each value represents the mean ± standard deviation of the results from at least three independent cultures; error bars that are not visible are smaller than the symbol. Gray circle, wild-type strain carrying a vector plasmid [WT(pMGP)]; open circle, wild-type strain carrying a vector plasmid [WT(pMGPaceBA)]; gray square, Δccr mutant carrying a vector plasmid [Δccr(pMGP) mutant]; open square, Δccr mutant carrying a plasmid expressing aceBA [Δccr(pMGPaceBA) mutant].