Fig. 2
From: Improving phloroglucinol tolerance and production in Escherichia coli by GroESL overexpression
Cell growth of recombinant strains under phloroglucinol stress (0.7 g/L). The recombinant strains were cultured in liquid medium and induced with 0.2 mM IPTG at 30 °C. Control (G0, ■), GroESL overexpression with natural promoter (G1, ●), GroESL overexpression with tac promoter (G2, ▲), and GroESL overexpression with T7 promoter (G3, ▼). All experiments were done in triplet, and the error bars indicate standard deviations (n = 3)