Fig. 2From: Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714 a, c Represent the coefficient plots of the DoE experiments for Synechocystis sp. PCC 6714 under nitrogen and phosphorus limitation, for biomass concentration (a) and PHB accumulation (c), respectively. b, d Show the model parameters and observed-versus-predicted plots of the models obtained for biomass concentration (b) and PHB accumulation (d) under nitrogen and phosphorus limitationBack to article page