Measurement of Proteus Cell Motility During Swarming

Author:
  • CDC. W. I. Douglas
    C. W. I. Douglas
Publisher website
Google Scholar
Abstract
The motilities of Proteus long forms during swarming on agar were measured on cells transferred to liquid suspension. During concentric-ring formation on solid medium, when the edge of the swarm was advancing slowly or had stopped, the velocity of long-form motility was low. When the colony was spreading rapidly, long-form velocity was relatively high. This periodic variation in cell velocity, which determines the zones formed during swarming, cannot adequately be explained by negative chemotaxis.