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Quorum sensing in vibrios: complexity for diversification.
Umeå University, Faculty of Science and Technology, Molecular Biology (Faculty of Science and Technology).
2006 (English)In: Int J Med Microbiol, ISSN 1438-4221, Vol. 296, no 2-3, 61-71 p.Article in journal (Refereed) Published
Abstract [en]

N-acylhomoserine lactone-dependent quorum sensing was first discovered in two luminescent marine bacteria, Vibrio fischeri and Vibrio harveyi. The LuxI/R system of V. fischeri is the paradigm of Gram-negative quorum-sensing systems; however, it is not found in all vibrios. A more complex quorum-sensing regulation is found in V. harveyi. Three parallel systems transmit signals via phosphorelays that converge onto one regulatory protein LuxO. Components of the three systems are found only in vibrios. Of the five Vibrio strains analysed, the number and types of signal circuits found in each strain are diverse. The signalling systems have different regulatory responses depending on the type of association the Vibrio strains have with an animal host, which may reflect the diverse roles the vibrios have in structuring and maintaining microniches within the aquatic milieu. Further studies are likely to show that the diversity and complexity of the Vibrio quorum-sensing systems coordinate intraspecies behaviour, niche occupation, and possibly evolution.

Place, publisher, year, edition, pages
2006. Vol. 296, no 2-3, 61-71 p.
Keyword [en]
Animals, Bacterial Proteins/physiology, Cell Communication/genetics, Homoserine/analogs & derivatives/physiology, Humans, Protein Kinases/physiology, Signal Transduction/physiology, Symbiosis/physiology, Transcription Factors/physiology, Vibrio/*genetics/pathogenicity/*physiology, Vibrio cholerae/genetics/physiology, Vibrio fischeri/genetics/physiology, Vibrio vulnificus/genetics/pathogenicity/physiology, Virulence
Identifiers
URN: urn:nbn:se:umu:diva-17989PubMedID: 16487746OAI: oai:DiVA.org:umu-17989DiVA: diva2:157662
Available from: 2007-11-26 Created: 2007-11-26 Last updated: 2011-01-11Bibliographically approved

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PubMedhttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Retrieve&list_uids=16487746&dopt=Citation

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Milton, Debra L

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
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  • en-US
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Output format
  • html
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  • asciidoc
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