Fig. 2

Ethylene production by the Synechocystis strains created in this study (Table 2) cultivated under the standard treatment (BG11+50 mM Tris pH 8.0, 50 mM NaHCO₃, Km (25 µg mL⁻¹) Cm (20 µg mL⁻¹), 5 µM of NiCl₂ and 20 µE m⁻² s⁻¹). Asterisks correspond to statistical significant differences compared to CD-C and CD-P, respectively. The experiment was repeated three times with three biological replicates. Error bars represent the mean ± SE