Active modulation of surfactant-driven flow instabilities by swarming bacteria.

Models based on surfactant-driven instabilities have been employed to describe pattern formation by swarming bacteria. However, by definition, such models cannot account for the effect of bacterial sensing and decision making. Here we present a more complete model for bacterial pattern formation which accounts for these effects by coupling active bacterial motility to the passive fluid dynamics.

Context-Specific Requirement of Forty-Four Two-Component Loci in Pseudomonas aeruginosa Swarming.

Swarming in Pseudomonas aeruginosa is a coordinated movement of bacteria over semisolid surfaces (0.5%-0.7% agar).