Many bacteria use flagellum-driven motility to swarm or move collectively over a surface
terrain. Bacterial adaptations for swarming can include cell elongation, hyperflagellation,
recruitment of special stator proteins, and surfactant secretion, among others. We recently
demonstrated another swarming adaptation in Escherichia coli, wherein the chemotaxis
pathway is remodeled to decrease tumble bias (increase run durations), with running
speeds increased as well. We show here that the modification of motility parameters during …