Fig. 1.

The effect of pH on the aerobic growth of P. denitrificans PD1222 in a defined minimal medium with pH ranging from 6.0–9.0. 100 μl cultures in 96-well plates were agitated at 400 rpm and measured by optical density at 600 nm (OD_600nm). Bars denote standard error of at least three independent biological replicates (n = ≥3).