Tunability and accuracy of bacterial pH taxis.

<p>(A) The preferred pH versus the logarithm of the Tar/Tsr ratio to base for three representative parameter regimes: , , and . The red symbols represent the experimental data from Ref. <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003672#pcbi.1003672-Yang1" target="_blank">[8]</a> and seem to coincide with the model curve for . (B) The standard deviations of the cell distributions as a function of for the three representative parameter regimes: , , and . In the above numerical examples, we have fixed , and .