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Appl Environ Microbiol, April 1998, p. 1246-1255, Vol. 64, No. 4
0099-2240/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Spatial and Temporal Deposition of Adhesive Extracellular Polysaccharide Capsule and Fimbriae by Hyphomonas Strain MHS-3

Ernesto J. Quintero, Kathryn Busch, and Ronald M. Weiner*

Department of Microbiology, University of Maryland, College Park, Maryland 20742

Received 25 August 1997/Accepted 7 January 1998

Hyphomonas strain MHS-3, a member of a genus of primary colonizers of surfaces immersed in marine water, synthesizes two structures that mediate adhesion to solid substrata, namely, capsular exopolysaccharide and fimbriae. Specific stains, gold-labelled lectins, and monoclonal antibodies, along with transmission electron microscopy of synchronized populations, revealed that both structures are polarly and temporally expressed. The timed synthesis and placement of the fimbriae and capsule correlated with the timing and locus of MHS-3 adhesion.


* Corresponding author. Mailing address: Department of Microbiology, University of Maryland, College Park, MD 20742. Phone: (301) 405-5435. Fax: (301) 314-9489. E-mail: rw19{at}umail.umd.edu.




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