Figure 2. Photomixotrophic growth of WT (▵), M1 (□), M2 (○), and M12 (⋄) strains of Synechocystis sp. PCC6803.

Cells were grown in a BG-11 medium containing 5 mM glucose and the number of cells were counted in the exponential phase. The same amount of the cells were inoculated in the new media. Each culture was inoculated with an equal number of exponential-phase cells, and growth of the cultures was monitored by measuring absorbance at 730 nm at various time intervals.