Potential for <Emphasis Type="Italic">luxS</Emphasis> related signalling in marine bacteria and production of autoinducer-2 in the genus <Emphasis Type="Italic">Shewanella</Emphasis> |
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Authors: | Agnes Bodor Bettina Elxnat Verena Thiel Stefan Schulz Irene Wagner-Döbler |
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Institution: | (1) Division of Cell Biology, Inhoffenstr, Helmholtz-Center for Infection Research, Group Microbial Communication, 7 38124 Braunschweig, Germany;(2) Institute of Organic Chemistry, Hagenring, Technical University of Braunschweig, 30 38106 Braunschweig, Germany |
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Abstract: | Background The autoinducer-2 (AI-2) group of signalling molecules are produced by both Gram positive and Gram negative bacteria as the
by-product of a metabolic transformation carried out by the LuxS enzyme. They are the only non species-specific quorum sensing
compounds presently known in bacteria. The luxS gene coding for the AI-2 synthase enzyme was found in many important pathogens. Here, we surveyed its occurrence in a collection
of 165 marine isolates belonging to abundant marine phyla using conserved degenerated PCR primers and sequencing of selected
positive bands to determine if the presence of the luxS gene is phylogenetically conserved or dependent on the habitat. |
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