Results 31 to 40 of about 9,043 (201)

Quorum-quenching activity of the AHL-lactonase from Bacillus licheniformis DAHB1 inhibits vibrio biofilm formation in vitro and reduces shrimp intestinal colonisation and mortality [PDF]

open access: yes, 2014
Vibrio parahaemolyticus is a significant cause of gastroenteritis resulting from the consumption of undercooked sea foods and often cause significant infections in shrimp aquaculture. Vibrio virulence is associated with biofilm formation and is regulated
Shanthi, S.   +4 more
core   +3 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

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

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

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

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

In Planta Biocontrol of Pectobacterium atrosepticum by Rhodococcus erythropolis Involves Silencing of Pathogen Communication by the Rhodococcal Gamma-Lactone Catabolic Pathway. [PDF]

open access: yesPLoS ONE, 2013
The virulence of numerous Gram-negative bacteria is under the control of a quorum sensing process based on synthesis and perception of N-acyl homoserine lactones.
Corinne Barbey   +10 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

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

Caffeine as a Potential Quorum Sensing Inhibitor

open access: yesSensors, 2013
Quorum sensing enables bacteria to control the gene expression in response to the cell density. It regulates a variety of bacterial physiological functions such as biofilm formation, bioluminescence, virulence factors and swarming which has been shown ...
Kok-Gan Chan   +2 more
doaj   +1 more source

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