TABLE 2.

Doubling times of fdx and nifF deletion mutants of Rhodobacter capsulatus strains^a

Genotype	Doubling time (h)
WT	10.31 ± 0.8
∆fdxB	10.49 ± 1.5
∆fdxC	43.7 ± 21.2
∆fdxD	8.81 ± 0.6
∆fdxN	28.7 ± 4.4
∆fdxCN	>100
∆nifF	8.83 ± 0.5
∆anfDGK	>100

^a An exponential Malthusian growth model was used to determine individual doubling times. Only OD₆₆₀ values in the linear range were included. The means and standard deviation of the doubling times were calculated using three biological replicates.