Fig. 4From: Cell-growth phase-dependent promoter replacement approach for improved poly(lactate-co-3-hydroxybutyrate) production in Escherichia coliCorrelation between P(LA-co-3HB) production and the mRNA levels of phaC. The x-axis shows the expression ratio of phaC mRNA to the ribosomal RNA, rrsA, quantified by RT-qPCR after 16 h of incubation. The y-axis shows the production of P(LA-co-3HB) as measured by Nile-red staining of cells after 48 h of incubation. The gene name of the promoter used for expression of the phaC1STQK-AB operon is indicated next to each dotBack to article page