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On a relation between interfacial free energy-dependent and noninterfacial free energy-dependent adherence of oral streptococci to solid substrata

On a relation between interfacial free energy-dependent and noninterfacial free energy-dependent... In several systems bacterial adhesion occurs despite a positive interfacial free energy of adhesion, ΔFadh; this implies that other interactions are involved. We hypothesize that the number of bacteria adhering at ΔFadh=0 represents their ability to adhere by other, i.e., non-ΔFadh-dependent interactions. Eight strains of oral streptococci were allowed to adhere to three solid substrata with different surface free energies in a flow cell system. Strain-specific linear relations were found between the numbers of bacteria adhering at saturation, nb,s, and ΔFadh. When for all strains the numbers of adhering bacteria at ΔFadh=0 were plotted versus the slopes, denoting the sensitivity to ΔFadh, a linear relationship (r=0.92) was observed. It is, therefore, concluded that one strain-specific factor influences both ΔFadh-dependent and non-ΔFadh-dependent adherence. The numerical value of this factor, together with a surface energetic analysis, predicts the number of streptococci that will adhere to a given nonbiological substratum. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Current Microbiology Springer Journals

On a relation between interfacial free energy-dependent and noninterfacial free energy-dependent adherence of oral streptococci to solid substrata

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References (20)

Publisher
Springer Journals
Copyright
Copyright © 1988 by Springer-Verlag New York Inc.
Subject
Life Sciences; Microbiology; Biotechnology
ISSN
0343-8651
eISSN
1432-0991
DOI
10.1007/BF01568537
Publisher site
See Article on Publisher Site

Abstract

In several systems bacterial adhesion occurs despite a positive interfacial free energy of adhesion, ΔFadh; this implies that other interactions are involved. We hypothesize that the number of bacteria adhering at ΔFadh=0 represents their ability to adhere by other, i.e., non-ΔFadh-dependent interactions. Eight strains of oral streptococci were allowed to adhere to three solid substrata with different surface free energies in a flow cell system. Strain-specific linear relations were found between the numbers of bacteria adhering at saturation, nb,s, and ΔFadh. When for all strains the numbers of adhering bacteria at ΔFadh=0 were plotted versus the slopes, denoting the sensitivity to ΔFadh, a linear relationship (r=0.92) was observed. It is, therefore, concluded that one strain-specific factor influences both ΔFadh-dependent and non-ΔFadh-dependent adherence. The numerical value of this factor, together with a surface energetic analysis, predicts the number of streptococci that will adhere to a given nonbiological substratum.

Journal

Current MicrobiologySpringer Journals

Published: Apr 11, 2005

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