Special Issue "Microbial Quorum Sensing: Linking the Outside World to Microbial Behaviour"

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A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biosensors".

Deadline for manuscript submissions: closed (15 January 2012)

Special Issue Editor

Guest Editor
Prof. Dr. Tom Coenye
Laboratory of Pharmaceutical Microbiology, Ghent University, Harelbekestraat 72, B-9000 Gent, Belgium
Website: http://www.ugent.be/fw/en/research/pharmaceutical-analysis/micro/staff/tom
E-Mail: tom.coenye@ugent.be
Phone: +32 9 2648141
Fax: +32 9 2648195
Interests: bacterial quorum sensing; biofilm formation; biofouling

Special Issue Information

Dear Colleagues,

Bacteria “communicate” with each other by using signalling molecules, a process called “quorum sensing” (QS). This form of signal dependent communication is present in Gram-positive and Gram-negative bacteria, as well as in fungi. At low population density only basal amounts of signal molecules are produced, not provoking an effect. At a certain threshold, signal concentrations will be high enough resulting in a binding to signal receptors and ultimately in an altered gene expression. Many micro-organisms apply their QS system(s) for the coordination of virulence and biofilm formation and/or maturation. The most commonly-used signaling molecules are N-acyl-homoserine lactones (AHL) that are produced by many Gram-negative bacteria. The autoinducer-2 (AI-2) QS system is considered to be a universal system used for interspecies communication and allows bacteria not only to sense the density of members of their own species, but also to sense the total density of a mixed community. The QS system of Gram-positive bacteria generally consists of a signal peptide and a two-component regulatory system made up of a membrane-bound sensor and an intracellular response regulator. QS systems in Gram-positive bacteria are much more diverse than the Gram-negative AHL QS system and there are many variations in the nature of the QS signal. In addition, some bacteria use alfa-hydroxy-ketone signaling molecules (including cholera autoinducer 1 and Legionella autoinducer 2), signaling molecules belonging to the "diffusible signal factor" family or quinolones of the PQS family. Finally, signaling molecules like tyrosol and farnesol can be sensed by fungi and can regulate group behaviour in these organisms.
This special issue of "Sensors" aims to cover the different aspects of cell-cell communication and how microorganisms use this quorum sensing to regulate their behaviour.

Prof. Dr. Tom Coenye
Guest Editor

Keywords

  • alfa-keto-hydroxyketones
  • autoinducer 2
  • autoinducing peptides
  • cell-cell communication
  • cholera autoinducer 1
  • diffusible signal factor
  • efficiency sensing
  • farnesol
  • N-acyl homoserine lactone
  • Pseudomonas quinolone signal
  • quorum quenching
  • quorum sensing
  • tyrosol

Published Papers (16 papers)

Sensors 2012, 12(6), 7047-7062; doi:10.3390/s120607047
Received: 29 March 2012; in revised form: 17 April 2012 / Accepted: 22 May 2012 / Published: 29 May 2012
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Sensors 2012, 12(5), 6645-6665; doi:10.3390/s120506645
Received: 31 March 2012; in revised form: 11 May 2012 / Accepted: 16 May 2012 / Published: 21 May 2012
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Sensors 2012, 12(5), 6176-6185; doi:10.3390/s120506176
Received: 19 March 2012; in revised form: 12 April 2012 / Accepted: 20 April 2012 / Published: 10 May 2012
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Sensors 2012, 12(5), 5432-5444; doi:10.3390/s120505432
Received: 1 February 2012; in revised form: 24 March 2012 / Accepted: 26 April 2012 / Published: 27 April 2012
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Sensors 2012, 12(4), 4846-4859; doi:10.3390/s120404846
Received: 15 March 2012; in revised form: 4 April 2012 / Accepted: 6 April 2012 / Published: 13 April 2012
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Sensors 2012, 12(4), 4661-4696; doi:10.3390/s120404661
Received: 28 February 2012; in revised form: 23 March 2012 / Accepted: 26 March 2012 / Published: 10 April 2012
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Sensors 2012, 12(4), 4156-4171; doi:10.3390/s120404156
Received: 21 February 2012; in revised form: 15 March 2012 / Accepted: 21 March 2012 / Published: 28 March 2012
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Sensors 2012, 12(4), 4065-4073; doi:10.3390/s120404065
Received: 16 January 2012; in revised form: 6 March 2012 / Accepted: 22 March 2012 / Published: 27 March 2012
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Sensors 2012, 12(4), 4016-4030; doi:10.3390/s120404016
Received: 16 January 2012; in revised form: 17 March 2012 / Accepted: 21 March 2012 / Published: 27 March 2012
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Sensors 2012, 12(4), 3814-3830; doi:10.3390/s120403814
Received: 21 February 2012; in revised form: 17 March 2012 / Accepted: 20 March 2012 / Published: 26 March 2012
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Sensors 2012, 12(3), 3762-3772; doi:10.3390/s120303762
Received: 29 December 2011; in revised form: 26 February 2012 / Accepted: 15 March 2012 / Published: 21 March 2012
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Sensors 2012, 12(3), 3484-3497; doi:10.3390/s120303484
Received: 15 February 2012; in revised form: 2 March 2012 / Accepted: 6 March 2012 / Published: 12 March 2012
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Sensors 2012, 12(3), 3327-3349; doi:10.3390/s120303327
Received: 16 January 2012; in revised form: 21 February 2012 / Accepted: 2 March 2012 / Published: 8 March 2012
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Sensors 2012, 12(3), 2899-2919; doi:10.3390/s120302899
Received: 16 January 2012; in revised form: 23 February 2012 / Accepted: 23 February 2012 / Published: 2 March 2012
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Sensors 2012, 12(3), 2851-2873; doi:10.3390/s120302851
Received: 11 February 2012; in revised form: 23 February 2012 / Accepted: 23 February 2012 / Published: 1 March 2012
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Sensors 2012, 12(3), 2519-2538; doi:10.3390/s120302519
Received: 6 January 2012; in revised form: 9 February 2012 / Accepted: 10 February 2012 / Published: 23 February 2012
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Last update: 4 March 2014

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