Resistance of Gram-positive bacteria to nisin is not determined by lipid II levels

FEMS Microbiol Lett. 2004 Oct 1;239(1):157-61. doi: 10.1016/j.femsle.2004.08.033.

Abstract

Lipid II is essential for nisin-mediated pore formation at nano-molar concentrations. We tested whether nisin resistance could result from different Lipid II levels, by comparing the maximal Lipid II pool in Micrococcus flavus (sensitive) and Listeria monocytogenes (relatively insensitive) and their nisin-resistant variants, with a newly developed method. No correlation was observed between the maximal Lipid II pool and nisin sensitivity, as was further corroborated by using spheroplasts of nisin-resistant and wild-type strains of M. flavus, which were equally sensitive to nisin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Drug Resistance, Bacterial*
  • Gram-Positive Bacteria / drug effects*
  • Listeria monocytogenes / drug effects
  • Microbial Sensitivity Tests
  • Micrococcus / drug effects
  • Nisin / pharmacology*
  • Polyisoprenyl Phosphates / chemistry
  • Uridine Diphosphate N-Acetylmuramic Acid / analogs & derivatives*
  • Uridine Diphosphate N-Acetylmuramic Acid / chemistry
  • Uridine Diphosphate N-Acetylmuramic Acid / metabolism*

Substances

  • Anti-Bacterial Agents
  • Polyisoprenyl Phosphates
  • Uridine Diphosphate N-Acetylmuramic Acid
  • muramyl-NAc-(pentapeptide)pyrophosphoryl-undecaprenol
  • Nisin
  • bactoprenylpyrophosphate