FIG 1.

Images demonstrating the flexibility of P. mirabilis and V. parahaemolyticus swarmer cells. (A) Time series of P. mirabilis swarmer cells in a colony actively moving across the surface of a 1.5% agarose gel. A representative cell, false-colored green, had a generally straight shape at t = 0 s and was bent in half at t = 0.98 s. Most of the cells in this frame were bending during this imaging sequence. (B) A time series of V. parahaemolyticus swarmer cells in a colony actively moving across the surface of a 1.4% agarose gel. A representative cell (false-colored purple) had a generally straight shape at t = 0 s and was bent in half at t = 4.02 s.