Fig. 4From: Maximizing PHB content in Synechocystis sp. PCC 6803: a new metabolic engineering strategy based on the regulator PirCPHB content of WT (green) and PPT1 (blue) cells grown in different media under dark/light rhythm. To induce PHB production, exponentially grown cells were shifted to either sulphur, phosphorus or nitrogen/phosphorus-free medium (a, b and c, respectively). Each point represents a mean of three independent biological replicatesBack to article page