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. 2016 Dec 23;15:214. doi: 10.1186/s12934-016-0612-6

Fig. 4.

Fig. 4

Effects of low IPTG concentrations on isoprene production and cell growth of the MGpsPtM strain (MG1655 harboring pTS-sPtispS-MVA). Culture was carried out in TB medium containing 2.0% (w/v) glycerol for 36 h at 30 °C. IPTG was initially added at concentrations of 0 mM (open squares), 0.01 mM (closed squares), 0.02 mM (closed triangles), and 0.03 mM IPTG (closed circles)