Navigated and Unguided Modes of Population Expansion (VIDEO)

University of California - San Diego

Caption

The radial density profile is shown for the navigated expansion process taken by chemotactic bacteria (top panel) and unguided expansion process taken by motile but non-chemotactic bacteria (bottom panel). Each is inoculated at the center of a soft-agar plate at time t=0. The density bulge at the leading front of navigated expansion is the feature seen distinctively in the photos of Fig. 1A as the "swarm ring."

Credit

Hwa Lab, UC San Diego

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Must be used in conjunction with Hwa Lab papers in Nature.

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