Fig. 3

Growth curve (A), chlorophyll a content (B), carotenoid content (C), oxygen evolution rate (D), contents of polyamines (E), proline (F), glutamate (G), GABA (H), and PHB (I) of WTc, Δadc1c, OXP, and OXP/Δadc1 Synechocystis sp. PCC 6803 strains. In (A–C), and (I), cells grown in BG₁₁ medium for 16 days. In (D–H), cells were grown in normal BG₁₁ medium for 7 days, and harvested for metabolite contents. The error bars represent standard deviations of means (mean ± S.D., n = 3). In (D–I), the statistical difference of the results between those values of WTc and that engineered strain is indicated by an asterisk at *P < 0.05