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Current Microbiology

, Volume 41, Issue 6, pp 441–443 | Cite as

The rpoN Gene of Enterococcus faecalis Directs Sensitivity to Subclass IIa Bacteriocins

  • Karine Dalet
  • Cécilia Briand
  • Yves Cenatiempo
  • Yann Héchard
Article

Abstract

The sigma54 factor has been previously described to be involved in Listeria monocytogenes sensitivity to mesentericin Y105, a subclass IIa bacteriocin. Here, we identified the rpoN gene, encoding sigma54, of Enterococcus faecalis JH2-2 and showed that its interruption leads to E. faecalis resistance to different subclass IIa bacteriocins. Moreover, this rpoN mutant remained sensitive to nisin, a class I bacteriocin, suggesting that sigma54 is especially involved in sensitivity to subclass IIa bacteriocins.

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Copyright information

© Springer-Verlag New York Inc. 2000

Authors and Affiliations

  • Karine Dalet
    • 1
  • Cécilia Briand
    • 1
  • Yves Cenatiempo
    • 1
  • Yann Héchard
    • 1
  1. 1.Laboratoire de Biologie Moléculaire, CNRS ESA 6031, IBMIG, Université de Poitiers, 40 avenue du recteur Pineau, 86022 Poitiers Cedex, FranceFrance

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