FIG 3.

OME and the response pathway regulate swarm expansion of mixed strains. Nonmotile (A⁻ S⁻) and A-motile (A⁺ S⁻) strains were mixed at the ratios indicated at the top and incubated for 3 days. The top row is a control where the A-motile strain DK8615 was instead mixed with buffer. All rows below contain strain mixtures; in rows that contain a parental strain (DK8601 or DK8615), the strain is identified by a dash, and in rows that contain derivative strains, the mutations are indicated. The strains are listed in Table 1.