Selected reactions in i Syn669 network that display flux changes across the four studied growth modes. Flux values (in mmol gDW-1 h-1) for selected reactions in the Synechocystis sp. PCC6803 metabolism. These reactions mark changes across four growth modes, viz., autotrophy, mixotrophy and light and dark heterotrophy. Corresponding flux ranges can be found in Table 4 and in Additional file 4 for all the reactions in i Syn669.