Results 21 to 30 of about 13,538,908 (209)

N-Acyl Homoserine Lactone Analog Modulators of the Pseudomonas aeruginosa Rhll Quorum Sensing Signal Synthase. [PDF]

open access: yesACS Chem Biol, 2019
Virulence in the Gram-negative pathogen Pseudomonas aeruginosa relies in part on the efficient functioning of two LuxI/R dependent quorum sensing (QS) cascades, namely, the LasI/R and RhlI/R systems that generate and respond to N-(3-oxo)-dodecanoyl-l ...
Shin D   +7 more
europepmc   +2 more sources

Gac two-component system in Pseudomonas syringae pv. tabaci is required for virulence but not for hypersensitive reaction [PDF]

open access: yes, 2008
Pseudomonas syringae pv. tabaci 6605 causes wildfire disease on host tobacco plants. To investigate the regulatory mechanism of the expression of virulence, Gac two-Component system-defective mutants, Delta gacA and Delta gacS, and a double mutant, Delta
Ichinose, Yuki   +7 more
core   +1 more source

Nicotinamide and Sodium Butyrate Double the Pool of Treatment-Exclusive Metabolites in the Endophytic Fungus Curvularia sp. G6-32. [PDF]

open access: yesChem Biodivers
Epigenetic modulators nicotinamide and sodium butyrate reshape the chemical landscape of the endophytic fungus Curvularia sp. G6‐32. Combining the OSMAC strategy with UHPLC‐MS/MS metabolomics and molecular networking reveals a more than twofold rise in treatment‐exclusive metabolites, including diketopiperazines and potentially bioactive natural ...
Pega GEA   +8 more
europepmc   +2 more sources

Characterization of Quorum Sensing and Quorum Quenching Soil Bacteria Isolated from Malaysian Tropical Montane Forest

open access: yesSensors, 2012
We report the production and degradation of quorum sensing N-acyl-homoserine lactones by bacteria isolated from Malaysian montane forest soil. Phylogenetic analysis indicated that these isolates clustered closely to the genera of Arthrobacter, Bacillus ...
Kok-Gan Chan   +5 more
doaj   +1 more source

Potential of a Quorum Quenching Bacteria Isolate Ochrobactrum intermedium D-2 Against Soft Rot Pathogen Pectobacterium carotovorum subsp. carotovorum

open access: yesFrontiers in Microbiology, 2020
Quorum quenching (QQ) is a promising strategy for preventing and controlling quorum sensing (QS)-mediated bacterial infections. It interferes with QS by the inhibition of signal synthesis, the detection of enzyme-catalyzed degradation, and the ...
Xinghui Fan   +11 more
doaj   +1 more source

Quorum sensing negatively regulates multinucleate cell formation during intracellular growth of Burkholderia pseudomallei in macrophage-like cells. [PDF]

open access: yesPLoS ONE, 2013
Burkholderia pseudomallei is a Gram-negative environmental bacterium and the causative agent of melioidosis, a potentially fatal, acute or chronic disease endemic in the tropics.
Rachel E Horton   +11 more
doaj   +1 more source

Production of N-acyl Homoserine Lactones and Virulence Factors of Waterborne Aeromonas hydrophila [PDF]

open access: yesIndian Journal of Microbiology, 2013
Aeromonads are inhabitants of aquatic ecosystems and are described as being involved in intestinal disturbances and other infections. The purpose of this study was to investigate the production of N-acyl-homoserine lactone (AHL) signal molecules and some virulence factors, including hemolysins, proteases, extracellular nucleases production and ...
Weihua, Chu   +4 more
openaire   +2 more sources

Quorum Sensing Activity in Pandoraea pnomenusa RB38

open access: yesSensors, 2014
Strain RB38 was recovered from a former dumping area in Malaysia. MALDI-TOF mass spectrometry and genomic analysis identified strain RB-38 as Pandoraea pnomenusa. Various biosensors confirmed its quorum sensing properties.
Robson Ee   +4 more
doaj   +1 more source

Quorum Quenching in a Novel Acinetobacter sp. XN-10 Bacterial Strain against Pectobacterium carotovorum subsp. carotovorum

open access: yesMicroorganisms, 2020
Quorum sensing (QS) is a cell density-dependent mechanism that regulates the expression of specific genes in microbial cells. Quorum quenching (QQ) is a promising strategy for attenuating pathogenicity by interfering with the QS system of pathogens.
Wenping Zhang   +8 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

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