Results 41 to 50 of about 9,794 (208)

Deciphering the Symbiotic Significance of Quorum Sensing Systems of Sinorhizobium fredii HH103 [PDF]

open access: yes, 2020
Quorum sensing (QS) is a bacterial cell-to-cell signaling mechanism that collectively regulates and synchronizes behaviors by means of small diffusible chemical molecules.
Andrés Almozara   +5 more
core   +1 more source

Engineering acyl-homoserine lactone-interfering enzymes toward bacterial control

open access: yesJournal of Biological Chemistry, 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, Raphael   +5 more
openaire   +2 more sources

Tandem Mass Spectrometry Detection of Quorum Sensing Activity in Multidrug Resistant Clinical Isolate Acinetobacter baumannii

open access: yesThe Scientific World Journal, 2014
Many Proteobacteria communicate via production followed by response of quorum sensing molecules, namely, N-acyl homoserine lactones (AHLs). These molecules consist of a lactone moiety with N-acyl side chain with various chain lengths and degrees of ...
Kok-Gan Chan   +4 more
doaj   +1 more source

Marine-Derived Metabolites of S-Adenosylmethionine as Templates for New Anti-Infectives

open access: yesMarine Drugs, 2009
S-Adenosylmethionine (AdoMet) is a key biochemical co-factor whose proximate metabolites include methylated macromolecules (e.g., nucleic acids, proteins, phospholipids), methylated small molecules (e.g., sterols, biogenic amines), polyamines (e.g ...
Janice R. Sufrin   +2 more
doaj   +1 more source

Peptides as quorum sensing molecules : measurement techniques and obtained levels in vitro and in vivo [PDF]

open access: yes, 2017
The expression of certain bacterial genes is regulated in a cell-density dependent way, a phenomenon called quorum sensing. Both Gram-negative and Gram-positive bacteria use this type of communication, though the signal molecules (auto-inducers) used by ...
Andersen   +172 more
core   +2 more sources

A novel metagenomic short-chain dehydrogenase/reductase attenuates Pseudomonas aeruginosa biofilm formation and virulence on Caenorhabditis elegans. [PDF]

open access: yesPLoS ONE, 2011
In Pseudomonas aeruginosa, the expression of a number of virulence factors, as well as biofilm formation, are controlled by quorum sensing (QS). N-Acylhomoserine lactones (AHLs) are an important class of signaling molecules involved in bacterial QS and ...
Patrick Bijtenhoorn   +13 more
doaj   +1 more source

Pseudomonas fluorescens MFE01 uses 1-undecene as aerial communication molecule

open access: yesFrontiers in Microbiology, 2023
Bacterial communication is a fundamental process used to synchronize gene expression and collective behavior among the bacterial population. The most studied bacterial communication system is quorum sensing, a cell density system, in which the ...
Charly A. Dupont   +15 more
doaj   +1 more source

Quorum Sensing Activity of Enterobacter asburiae Isolated from Lettuce Leaves

open access: yesSensors, 2013
Bacterial communication or quorum sensing (QS) is achieved via sensing of QS signaling molecules consisting of oligopeptides in Gram-positive bacteria and N-acyl homoserine lactones (AHL) in most Gram-negative bacteria.
Kok-Gan Chan   +4 more
doaj   +1 more source

Evaluation of a new high-throughput method for identifying quorum quenching bacteria [PDF]

open access: yes, 2013
Quorum sensing (QS) is a population-dependent mechanism for bacteria to synchronize social behaviors such as secretion of virulence factors. The enzymatic interruption of QS, termed quorum quenching (QQ), has been suggested as a promising alternative ...
Bossier, Peter   +6 more
core   +2 more sources

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

open access: yes, 2017
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.
Daniel, Shin, Rajesh, Nagarajan
openaire   +2 more sources

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