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J. Bacteriol., Jan 1998, 440-443, Vol 180, No. 2
Copyright © 1998, American Society for Microbiology

Myxococcus xanthus displays Frz-dependent chemokinetic behavior during vegetative swarming [In Process Citation]

MJ Ward, KC Mok and DR Zusman
Department of Molecular and Cell Biology, University of California, Berkeley 94720-3204, USA.

Myxococcus xanthus has been shown to utilize both directed (tactic) and undirected (kinetic) movements during different stages of its complex life cycle. We have used time-lapse video microscopic analysis to separate tactic and kinetic behaviors associated specifically with vegetatively swarming cells. Isolated individual cells separated by a thin agar barrier from mature swarms showed significant increases in gliding velocity compared to that of similar cells some distance from the swarm. This orthokinetic behavior was independent of the frequency of reversals of gliding direction (klinokinesis) but did require both the Frz signal transduction system and S-motility. We propose that M. xanthus uses Frz-dependent, auto-orthokinetic behavior to facilitate the dispersal of cells under conditions where both cell density and nutrient levels are high.


This article has been cited by other articles:

  • Taylor, R. G., Welch, R. D. (2008). Chemotaxis as an Emergent Property of a Swarm. J. Bacteriol. 190: 6811-6816 [Abstract] [Full Text]  
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  • Jelsbak, L., Sogaard-Andersen, L. (1999). The cell surface-associated intercellular C-signal induces behavioral changes in individual Myxococcus xanthus cells during fruiting body morphogenesis. Proc. Natl. Acad. Sci. USA 96: 5031-5036 [Abstract] [Full Text]  
  • Ward, M. J., Lew, H., Treuner-Lange, A., Zusman, D. R. (1998). Regulation of Motility Behavior in Myxococcus xanthus May Require an Extracytoplasmic-Function Sigma Factor. J. Bacteriol. 180: 5668-5675 [Abstract] [Full Text]  
  • Ward, M. J., Mok, K. C., Astling, D. P., Lew, H., Zusman, D. R. (1998). An ABC Transporter Plays a Developmental Aggregation Role in Myxococcus xanthus. J. Bacteriol. 180: 5697-5703 [Abstract] [Full Text]  


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