Bacteriocin-Mediated Competitive Interactions of Bacterial Populations and Communities

  • Margaret A. Riley


Explaining the coexistence of competing species is a major challenge in community ecology. In bacterial systems, competition is often driven by the production of bacteriocins; narrow spectrum proteinaceous toxins that serve to kill closely related species providing the producer better access to limited resources. Bacteriocin producers have been shown to competitively exclude sensitive, nonproducing strains. However, the interaction dynamics between bacteriocin producers, each lethal to its competitor, are largely unknown. Several recent studies have revealed some of the complexity of these interactions, employing a suite of in vitro, in vivo, and in silico bacterial model systems. This chapter describes the current state of knowledge regarding the population and community ecology of this potent family of toxins.


Toxin Producer Structure Environment Bacteriocin Producer Mouse Colon Klebsiella Oxytoca 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by National Institutes of Health grants R01GM068657-01A2 and R01A1064588-01A2 to M.A.R.


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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of BiologyUniversity of Massachusetts AmherstAmherstUSA

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