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Journal of Bacteriology, July 2009, p. 4097-4102, Vol. 191, No. 13
0021-9193/09/$08.00+0     doi:10.1128/JB.00717-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Interactions of DNA with Biofilm-Derived Membrane Vesicles{triangledown} ,{dagger}

Sarah R. Schooling,1,2,3* Amanda Hubley,2 and Terry J. Beveridge2,3

Departments of Physics,1 Molecular & Cellular Biology,2 Advanced Foods and Materials Network, Networks of Centres of Excellence, College of Biological Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada3

Received 21 May 2008/ Accepted 24 April 2009

The biofilm matrix contributes to the chemistry, structure, and function of biofilms. Biofilm-derived membrane vesicles (MVs) and DNA, both matrix components, demonstrated concentration-, pH-, and cation-dependent interactions. Furthermore, MV-DNA association influenced MV surface properties. This bears consequences for the reactivity and availability for interaction of matrix polymers and other constituents.

* Corresponding author. Mailing address: Departments of Physics, Molecular & Cellular Biology, and AFMNet-NCE, College of Biological Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada. Phone: (519) 824-4120, ext. 58904. Fax: (519) 837-1802. E-mail: sschooli{at}uoguelph.ca

{triangledown} Published ahead of print on 8 May 2009.

{dagger} This paper is dedicated to the late Terry Beveridge, friend and mentor, and a belief of science—"isn't this fun?"

Journal of Bacteriology, July 2009, p. 4097-4102, Vol. 191, No. 13
0021-9193/09/$08.00+0     doi:10.1128/JB.00717-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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