JB Accepts, published online ahead of print on 10 August 2007
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J. Bacteriol. doi:10.1128/JB.00957-07
Copyright (c) 2007, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

Cell-surface filaments of the gliding bacterium Flavobacterium johnsoniae revealed by cryo-electron tomography

Jun Liu, Mark J. McBride*, and Sriram Subramaniam*

Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; Department of Biological Sciences, University of Wisconsin—Milwaukee, Milwaukee, Wisconsin

* To whom correspondence should be addressed. Email: mcbride{at}uwm.edu. ss1{at}nih.gov.


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Abstract

Flavobacterium johnsoniae cells glide rapidly over surfaces by an as yet unknown mechanism. Using cryo-electron tomography, we show that wild-type cells display tufts of ~5 nm-wide cell surface filaments that appear to be anchored to the inner surface of the outer membrane. These filaments are absent in cells of a nonmotile gldF mutant, but are restored upon expression of plasmid-encoded GldF, a component of a putative ATP-binding-cassette transporter.




This article has been cited by other articles:

  • Murray, T. S., Kazmierczak, B. I. (2008). Pseudomonas aeruginosa Exhibits Sliding Motility in the Absence of Type IV Pili and Flagella. J. Bacteriol. 190: 2700-2708 [Abstract] [Full Text]  
  • Nelson, S. S., Bollampalli, S., McBride, M. J. (2008). SprB Is a Cell Surface Component of the Flavobacterium johnsoniae Gliding Motility Machinery. J. Bacteriol. 190: 2851-2857 [Abstract] [Full Text]  


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