How Delisea pulchra furanones affect quorum sensing and swarming motility in Serratia liquefaciens MG1

T B Rasmussen, M Manefield, Jens Bo Andersen, Leo Eberl, U Anthoni, C Christophersen, P Steinberg, S Kjelleberg, M Givskov

197 Citations (Scopus)

Abstract

Halogenated furanones produced by the benthic marine macroalga Delisea pulchra inhibit swarming motility of Serratia liquefaciens MG1. This study demonstrates that exogenously added furanones control transcription of the quorum sensing regulated gene swrA in competition with the cognate signal molecule N:-butanoyl-L-homoserine lactone. This in turn results in reduced production of the surface-active compound serrawettin W2, which is crucial for surface translocation of the differentiated swarm cells. It is demonstrated that furanones interfere with interspecies communication during swarming of mixed cultures and that the mode of interference in quorum-sensing control and interspecies communication is not through inhibition of autoinducer synthesis.
Original languageEnglish
JournalMicrobiology
Volume146 Pt 12
Pages (from-to)3237-44
Number of pages8
ISSN1350-0872
Publication statusPublished - 2000

Keywords

  • 4-Butyrolactone
  • Furans
  • Gene Expression Regulation, Bacterial
  • Lipoproteins
  • Luminescent Measurements
  • Movement
  • Peptides, Cyclic
  • Rhodophyta
  • Serratia
  • Signal Transduction
  • Transcription, Genetic

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