Figure 5
Competition experiments between the wild type strain M. aeruginosa PCC 7806 and its mcyB mutant. (a, b) Competition in a CO2-limited chemostat. (c, d) Competition in a light-limited chemostat. The rate of competitive displacement (RCD) is estimated from the slope of the linear regression of ln(wild type/mutant) versus time. Comparison of the slopes in (b) and (d) shows that the wild type displaces the mutant at a much faster rate in the CO2-limited chemostat (RCD=0.063 per day) than in the light-limited chemostat (RCD=0.012 per day). Regression statistics: (b) y=0.063x−2.371 (R2=0.98; P<0.001); (d) y=0.012x+0.518 (R2=0.96; P<0.001).
