Next Article in Journal
Tip-Jump Response of an Amplitude-Modulated Atomic Force Microscope
Next Article in Special Issue
CMEIAS-Aided Microscopy of the Spatial Ecology of Individual Bacterial Interactions Involving Cell-to-Cell Communication within Biofilms
Previous Article in Journal
Dynamic Structural Health Monitoring of Slender Structures Using Optical Sensors
Previous Article in Special Issue
luxS Mutant Regulation: Quorum Sensing Impairment or Methylation Disorder?
Sensors 2012, 12(5), 6645-6665; doi:10.3390/s120506645
Review

Detection of AI-2 Receptors in Genomes of Enterobacteriaceae Suggests a Role of Type-2 Quorum Sensing in Closed Ecosystems

,
 and
*
Plant Protection Division, Agroscope Changins-Wädenswil ACW, Schloss 1, Wädenswil CH-8820, Switzerland
* Author to whom correspondence should be addressed.
Received: 31 March 2012 / Revised: 11 May 2012 / Accepted: 16 May 2012 / Published: 21 May 2012
View Full-Text   |   Download PDF [339 KB, uploaded 21 June 2014]   |   Browse Figures
SciFeed

Abstract

The LuxS enzyme, an S-ribosyl-homocysteine lyase, catalyzes the production of the signal precursor for autoinducer-2 mediated quorum sensing (QS-2) in Vibrio. Its widespread occurrence among bacteria is often considered the evidence for a universal language for interspecies communication. Presence of the luxS gene and production of the autoinducer-2 (AI-2) signal have repeatedly been the only evidences presented to assign a functional QS-2 to the most diverse species. In fact, LuxS has a primary metabolic role as part of the activated methyl cycle. In this review we have analyzed the distribution of QS-2 related genes in Enterobacteriaceae by moving the focus of the investigation from AI-2 production to the detection of potential AI-2 receptors. The latter are common in pathogens or endosymbionts of animals, but were also found in a limited number of Enterobacteriaceae of the genera Enterobacter, Klebsiella, and Pantoea that live in close association with plants or fungi. Although a precise function of QS-2 in these species has not been identified, they all show an endophytic or endosymbiontic lifestyle that suggests a role of type-2 quorum sensing in the adaptation to closed ecosystems.
Keywords: LuxS; N-acyl homoserine lactone; Erwinia; Pantoea; Salmonella; Serratia; Enterobacter; metabolism; autoinducer; plant pathogen; nitrogen fixation LuxS; N-acyl homoserine lactone; Erwinia; Pantoea; Salmonella; Serratia; Enterobacter; metabolism; autoinducer; plant pathogen; nitrogen fixation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
MDPI and ACS Style

Rezzonico, F.; Smits, T.H.M.; Duffy, B. Detection of AI-2 Receptors in Genomes of Enterobacteriaceae Suggests a Role of Type-2 Quorum Sensing in Closed Ecosystems. Sensors 2012, 12, 6645-6665.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert