Figure 2.

Growth of single and double inactivation strains of group 2 σ factors of Synechocystis. The A₇₃₀ of the cell culture was set to 0.1, and the cells were grown in BG-11 medium under the continuous illumination of 40 μmol photons m⁻² s⁻¹ at 32°C under air levels of CO₂ (A) or under 3% CO₂ (B). Each growth curve represents the mean of five independent experiments, and the error bars denote se.