Figure 1.

Photoautotrophic Growth of Synechocystis Wild Type and slr0228::Ω.

(A) All cultures were grown at 31 to 32°C in BG-11 medium with air bubbling and stirring. Initially, cultures were grown in low light (LL) (10 μE·m⁻²·s⁻¹) for 58 h. At this point (indicated by the black arrow), a wild-type (WT) culture (red line) and a mutant culture (green line) were moved to a higher light intensity (HL) (40 μE·m⁻²·s⁻¹). Wild-type LL and slr0228::Ω LL continued to be grown at low light (10 μE·m⁻²·s⁻¹). For each time point, duplicate measurements of OD₇₃₀ were made and plotted as the average. The differences between the two values were less than the size of the symbols.

(B) Top photograph, cultures after 58 h; bottom photograph, the same cultures after 100 h.