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Fig. 5 | Microbial Cell Factories

Fig. 5

From: Systems analysis of methylerythritol-phosphate pathway flux in E. coli: insights into the role of oxidative stress and the validity of lycopene as an isoprenoid reporter metabolite

Fig. 5

Excess reactive oxygen species decrease measurable lycopene content. a The stationary-phase specific catalase KatE was expressed under an arabinose-inducible promoter to complement katE expression in MG1655*. b Seq+ was grown in the presence of increasing concentrations of the redox cycling agent menadione. Values for Seq+ harboring pAC-LYC04 only, or in combination with pT-dxs, are shown on the right and left axis, respectively. The inlet shows cell pellets at the end of the fermentation with the increasing concentrations of menadione

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