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Environmental and genetic factors influencing biofilm structure

Stoodley, P., Hall-Stoodley, Luanne, Boyle, J.D., Jorgensen, F. and Lappin-Scott, H.M. (2000) Environmental and genetic factors influencing biofilm structure In, Allison, D.G., Gilbert, P., Lappin-Scott, H.M. and Wilson, M. (eds.) Community Structure and Cooperation in Biofilms. Cambridge, GB, Cambridge University Press, Cambridge. pp. 107-127. (Society for General Microbiology Symposium, 59).

Record type: Book Section


It is increasingly evident that biofilms growing in a diverse range of medical, industrial, and natural environments form a similarly diverse range of complex structures (Stoodley et al., 1999a). These structures often contain water channels which can increase the supply of nutrients to cells in the biofilm (deBeer and Stoodley 1995) and prompted
Costerton et al., (1995) to propose that the water channels may serve as a rudimentary circulatory system of benefit to the biofilm as a whole. This concept suggests that biofilm structure may be controlled, to some extent, by the organisms themselves and may be optimized for a certain set of environmental conditions. To date most of the research on biofilm structure has been focused on the influence of external environmental factors such as surface chemistry and roughness, physical forces (i.e. hydrodynamic shear), or nutrient conditions and the chemistry of the aqueous environment. However, there has been a recent increase in the number of researchers using molecular techniques to study the genetic regulation of biofilm formation and development. Davies et al. (1998) demonstrated that the structure of a Pseudomonas aeruginosa biofilm could be controlled through production of the cell signal (or pheromone) N-(3-oxododecanoyl)-L-homoserine lactone (OdDHL). In this paper we will examine some of the research that has been conducted in our labs and the labs of others on the relative contribution of hydrodynamics, nutrients and cell signalling to the structure and behaviour of bacterial biofilms.

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Published date: 2000
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 158957
ISBN: 9780521793025
PURE UUID: 173dce93-ce30-406e-9f63-5197bf8af433

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Date deposited: 29 Jun 2010 08:37
Last modified: 18 Jul 2017 12:37

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Author: P. Stoodley
Author: Luanne Hall-Stoodley
Author: J.D. Boyle
Author: F. Jorgensen
Author: H.M. Lappin-Scott
Editor: D.G. Allison
Editor: P. Gilbert
Editor: H.M. Lappin-Scott
Editor: M. Wilson

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