Fig. 3

Growth curve and mannitol production of Synechocystis mutants in normal BG-11 medium. a Growth curve in cultures of WT, WT_M, ΔCS, ΔCS_M, ΔGGPS and ΔGGPS_M b Mannitol accumulation in three different mannitol-producing strains WT_M, ΔCS_M and ΔGGPS_M. Symbols: solid triangles, WT_M; solid squares, ΔGGPS_M; solid circles, ΔCS_M; open triangles, WT; open squares, ΔGGPS; open circles, ΔCS. Values represent the average of at least three biological replicates (error bars represent standard deviation). In a, the broken lines connect the data points of the strains lacking the mannitol cassette