Motile bacteria are known to accumulate at surfaces, eventually leading to changes in
bacterial motility and biofilm formation. We use a novel two-color, three-dimensional …

Adenosine-to-inosine (A-to-I) RNA editing is an important posttranscriptional event in
eukaryotes; however, many features remain largely unexplored in prokaryotes. This study …

Run-and-tumble chemotaxis is a representative search strategy for odor sources by sensing
its spatial gradients. The optimal ways of sensing and control in run-and-tumble chemotaxis …

We consider a run-and-tumble particle whose speed and tumbling rate are space
dependent on an infinite line. Unlike most of the previous work on such models, here we …

Bacterial cells use run-and-tumble motion to climb up attractant concentration gradient in
their environment. By extending the uphill runs and shortening the downhill runs the cells …

In the chemotactic motion of Escherichia coli, the switching of transmembrane
chemoreceptors between active and inactive states is one of the most important steps of the …

We show how the competition between sensing and adaptation can result in a performance
peak in Escherichia coli chemotaxis using extensive numerical simulations in a detailed …

We study methylation dynamics of the chemoreceptors as an Escherichia coli cell moves
around in a spatially varying chemoattractant environment. We consider attractant …

We study a simple run-and-tumble random walk whose switching frequencies between run
mode and tumble mode depend on a stochastic signal. We consider a particularly sharp …

After application of a step stimulus, in the form of a sudden change in attractant environment,
the receptor activity and tumbling bias of an E. coli cell change sharply to reach their …