Fig. 5
Environmental robustness assessment of a control system implementing an OR gate (E. coli transformed with plasmid pRHA37; this system lacks the cI repressor so that mRFP1 is only regulated post-transcriptionally). Fluorescence monitoring (normalized red fluorescence) for each induction condition (IPTG, aTc) when the culture medium changes (pH variation, urea addition, Fe3+ addition, and temperature variation; same legend as in Fig. 4). Error bars correspond to standard errors over four biological replicates. Color legend as in Fig. 4