Co-culture growth and ratio dynamics: baseline and with tuning.

<p>(<b>A</b>) Co-culture density (measured by OD₆₀₀) and Y3∶W3 ratio during growth in minimal medium without inducers. The ratio measurement is shown only for the exponential growth phase because the YFP calibration is not reliable after the cells enter the stationary phase. (<b>B</b>) An example of Y3∶W3 ratio dynamics at various arabinose concentrations. Propionate concentration was held at 20 mM. Only the exponential growth phase is shown. Each curve represents the mean of 4 replicates. Note: the secondary y-axis label in (<b>A</b>), Ratio Y3∶W3, is also the label for the primary y-axis in (<b>B</b>).