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Journal of Bacteriology, April 2005, p. 2519-2525, Vol. 187, No. 7
0021-9193/05/$08.00+0     doi:10.1128/JB.187.7.2519-2525.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

High-Frequency Phase Variation of Vibrio vulnificus 1003: Isolation and Characterization of a Rugose Phenotypic Variant{dagger} ,{ddagger}

Brenda L. Grau,1* Margaret C. Henk,1,2 and Gregg S. Pettis1,3

Department of Biological Sciences,1 Socolofsky Microscopy Center,2 Louisiana Agricultural Experiment Station, Louisiana State University, Baton Rouge, Louisiana3

Received 26 October 2004/ Accepted 20 December 2004

The marine bacterium Vibrio vulnificus is a human pathogen that can spontaneously switch between virulent opaque and avirulent translucent phenotypes. Here, we document an additional form, the rugose variant, which produces copious biofilms and which may contribute both to pathogenicity of V. vulnificus and to its survival under adverse environmental conditions.

* Corresponding author. Mailing address: Department of Biological Sciences, 107 Life Sciences Building, Louisiana State University, Baton Rouge, LA 70803. Phone: (225) 578-9110. Fax: (225) 578-2597. E-mail: bgrau1{at}lsu.edu.

{dagger} This work is dedicated to the memory of Ronald J. Siebeling and V. R. Srinivasan, both of whom were tireless in their enthusiastic teaching of microbiology.

{ddagger} Approved for publication by the director of the Louisiana Agricultural Experiment Station as manuscript 04-20-0639.

Journal of Bacteriology, April 2005, p. 2519-2525, Vol. 187, No. 7
0021-9193/05/$08.00+0     doi:10.1128/JB.187.7.2519-2525.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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