Cycles of light and dark co-ordinate reversible colony differentiation in Listeria monocytogenes

  title={Cycles of light and dark co-ordinate reversible colony differentiation in Listeria monocytogenes},
  author={T. Tiensuu and C. Andersson and P. Ryd{\'e}n and J. Johansson},
  journal={Molecular Microbiology},
  pages={909 - 924}
  • T. Tiensuu, C. Andersson, +1 author J. Johansson
  • Published 2013
  • Biology, Medicine
  • Molecular Microbiology
  • Recently, several light receptors have been identified in non‐phototrophic bacteria, but their physiological roles still remain rather elusive. Here we show that colonies of the saprophytic bacterium Listeria monocytogenes undergo synchronized multicellular behaviour on agar plates, in response to oscillating light/dark conditions, giving rise to alternating ring formation (opaque and translucent rings). On agar plates, bacteria from opaque rings survive increased levels of reactive oxygen… CONTINUE READING
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