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. 2007 Nov 26;74(2):437–445. doi: 10.1128/AEM.01688-07

FIG. 4.

FIG. 4.

Experimental steady-state results for architectures a, b, and c. In the bistable region, architecture c exhibits memory in that the initial condition can drive the system to different steady-state attractors, as demonstrated in plot b. Here, initial cultures were grown to a low absorbance (A600 of <0.2), grown to a high absorbance (A600 of >0.7), or induced with 100 nM 3OC6HSL. The negative (neg.) control results (pPROLar.A122 and pPSSUB-102) are plotted for comparison. Fluor., fluorescence; A.U., arbitrary units.