Results 1 to 10 of about 6,940 (174)

A Mesorhizobium japonicum quorum sensing circuit that involves three linked genes and an unusual acyl-homoserine lactone signal [PDF]

mBio, 2023
Members of the genus Mesorhizobium, which are core components of the rhizosphere and specific symbionts of legume plants, possess genes for acyl-homoserine lactone (AHL) quorum sensing (QS).
Zehui Suo, Dale A. Cummings, Aaron W. Puri, Amy L. Schaefer, E. Peter Greenberg   +4 more
doaj   +2 more sources

Engineering acyl-homoserine lactone-interfering enzymes toward bacterial control. [PDF]

J Biol Chem, 2020
Enzymes able to degrade or modify acyl-homoserine lactones (AHLs) have drawn considerable interest for their ability to interfere with the bacterial communication process referred to as quorum sensing. Many proteobacteria use AHL to coordinate virulence and biofilm formation in a cell density-dependent manner; thus, AHL-interfering enzymes constitute ...
Billot R, Plener L, Jacquet P, Elias M, Chabrière E, Daudé D.   +5 more
europepmc   +3 more sources

MALDI Mass Spectrometry Imaging Reveals the Existence of an N-Acyl-homoserine Lactone Quorum Sensing System in Pseudomonas putida Biofilms [PDF]

Metabolites, 2022
Quorum sensing (QS) is generally used to describe the process involving the release and recognition of signaling molecules, such as N-acyl-homoserine lactones, by bacteria to coordinate their response to population density and biofilm development ...
Rattanaburi Pitchapa, Sivamoke Dissook, Sastia Prama Putri, Eiichiro Fukusaki, Shuichi Shimma   +4 more
doaj   +2 more sources

Enzymatic Assays to Investigate Acyl-Homoserine Lactone Autoinducer Synthases. [PDF]

Methods Mol Biol, 2018
Bacteria use chemical molecules called autoinducers as votes to poll their numerical strength in a colony. This polling mechanism, commonly referred to as quorum sensing, enables bacteria to build a social network and provide a collective response for fighting off common threats.
Shin D, Nagarajan R.
europepmc   +4 more sources

N-Acyl Homoserine Lactone Production by the Marine Isolate, Dasania marina. [PDF]

Microorganisms
Dasania marina (isolate SD1D, with 98.5% sequence similarity to Dasania marina DMS 21967 KOPRI 20902) is a marine bacterium that was isolated from ballast tank fluids as part of a biofilm study in 2014. Our previous work indicated that although this strain produced no detectable biofilm, it was the only isolate to produce N-acyl homoserine lactones ...
Alimiran F, David S, Birks S, Oldham A, Henderson D.   +4 more
europepmc   +4 more sources

Methods for Detecting N-Acyl Homoserine Lactone Production in Acinetobacter baumannii. [PDF]

Methods Mol Biol, 2019
Acinetobacter baumannii cell-cell signaling is mediated by production and release of N-acyl homoserine lactones (AHLs), primarily N-(3-hydroxydodecanoyl)-L-homoserine lactone (3-hydroxy-C12-HSL). The secretion of this signal can be readily assessed via simple plate-based or thin-layer chromatography-based assays utilizing an Agrobacterium tumefaciens ...
Paulk Tierney AR, Rather PN.
europepmc   +4 more sources

Acyl homoserine-lactone quorum-sensing signal generation [PDF]

Proceedings of the National Academy of Sciences, 1999
Acyl homoserine lactones (acyl-HSLs) are important intercellular signaling molecules used by many bacteria to monitor their population density in quorum-sensing control of gene expression. These signals are synthesized by members of the LuxI family of proteins. To understand the mechanism of acyl-HSL synthesis we have purified the
M R, Parsek, D L, Val, B L, Hanzelka, J E, Cronan, E P, Greenberg   +4 more
openaire   +2 more sources

Structural Basis of Acyl-homoserine Lactone-Dependent Signaling [PDF]

Chemical Reviews, 2010
Acyl-homoserine lactones are small neutral lipid molecules that bacteria in the Proteobacteria group use to sense and signal their cell density. This signaling process, known as quorum sensing, activates differentiation to diverse community oriented lifestyles within the bacterial population.
Mair E A, Churchill, Lingling, Chen
openaire   +2 more sources

Acyl Homoserine Lactone Production of Brewery Process Surface Bacteria [PDF]

Journal of the Institute of Brewing, 2011
The aim of this study was to find out whether the first bacterial colonizers of brewery process surfaces after washing produce acyl homoserine lactone (AHL) quorum sensing signalling molecules. Microbial attachment and biofilm formation was studied by mounting sterile uncoated and coated stainless steel coupons onto critical places of the filling ...
Priha, Outi, Juvonen, Riikka, Tapani, Kaisa, Storgårds, Erna   +3 more
openaire   +3 more sources

Are There Acyl-Homoserine Lactones within Mammalian Intestines? [PDF]

Journal of Bacteriology, 2013
ABSTRACTManyProteobacteriaare capable of quorum sensing usingN-acyl-homoserine lactone (acyl-HSL) signaling molecules that are synthesized by LuxI or LuxM homologs and detected by transcription factors of the LuxR family. Most quorum-sensing species have at least one LuxR and one LuxI homolog.
Matthew C, Swearingen, Anice, Sabag-Daigle, Brian M M, Ahmer   +2 more
openaire   +2 more sources