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Antagonistic Interactions Amongst Bacteriocin-producing Enteric Bacteria in Dual Species Biofilms by K. Tait; I.W. Sutherland is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Aims: The objective of this study was to investigate the antagonistic interactions between bacteriocin-producing enteric bacteria in dual species biofilms and the interspecies interactions correlated with sensitivity to biocides. ## Methods and results: When compared with their single species counterparts, the dual species biofilms formed by bacteriocin-producing strains exhibited a decrease in biofilm size and an increase in sensitivity to the antimicrobial agents hypochlorite, triclosan and benzalkonium chloride. the five dual species biofilms studied all resulted in biofilms containing a mixture of the two strains. this was attributed to the spatial distribution of cells within the biofilm, with each strain forming its own microcolonies. the production of a bacteriocin also gave a strain a competitive advantage when interacting with a bacteriocin-sensitive strain within a biofilm, both in gaining a foothold in a new environment and in preventing the colonization of a potential competitor into a pre-established biofilm. ## Conclusions: It was concluded that bacteriocins might be used specifically for interacting with competing strains within a biofilm, as opposed to a plankton

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Author

K. Tait; I.W. Sutherland

Publisher

Oxford University Press (OUP)

Published

2002

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)