Results 21 to 30 of about 9,043 (201)

Non-thermal Plasma Exposure Rapidly Attenuates Bacterial AHL-Dependent Quorum Sensing and Virulence. [PDF]

open access: yes, 2016
The antimicrobial activity of atmospheric pressure non-thermal plasma has been exhaustively characterised, however elucidation of the interactions between biomolecules produced and utilised by bacteria and short plasma exposures are required for ...
Busetti, Alessandro   +8 more
core   +16 more sources

Novel Bifunctional Acylase from Actinoplanes utahensis: A Versatile Enzyme to Synthesize Antimicrobial Compounds and Use in Quorum Quenching Processes

open access: yesAntibiotics, 2021
Many intercellular communication processes, known as quorum sensing (QS), are regulated by the autoinducers N-acyl-l-homoserine lactones (AHLs) in Gram-negative bacteria.
Lara Serrano-Aguirre   +5 more
doaj   +1 more source

Plant growth-promoting mechanisms and genetic diversity of bacteria strains isolated from Brachiaria humidicola and Brachiaria decumbens

open access: yesAnais da Academia Brasileira de Ciências, 2021
Plant growth-promoting bacteria (PGPB) have received great interest in recent decades. However, PGPB mechanisms remain poorly understood in forage species. We aimed to evaluate roots endophytic and rhizospheric bacteria strains from Brachiaria humidicola
JOÃO T.C. OLIVEIRA   +7 more
doaj   +1 more source

N-Acyl Homoserine Lactone-Mediated Quorum Sensing Regulates Species Interactions in Multispecies Biofilm Communities [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology, 2021
Bacterial biofilms are important medically, environmentally and industrially and there is a need to understand the processes that govern functional synergy and dynamics of species within biofilm communities. Here, we have used a model, mixed-species biofilm community comprised of Pseudomonas aeruginosa PAO1, Pseudomonas protegens Pf-5 and Klebsiella ...
Sujatha Subramoni   +8 more
openaire   +4 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

Identification of Quorum-Sensing Molecules of N-Acyl-Homoserine Lactone in Gluconacetobacter Strains by Liquid Chromatography-Tandem Mass Spectrometry

open access: yesMolecules, 2019
Many Gram-negative bacteria can regulate gene expression in a cell density-dependent manner via quorum-sensing systems using N-acyl-homoserine lactones (AHLs), which are typical quorum-sensing signaling molecules, and thus modulate physiological ...
Ling-Pu Liu   +7 more
doaj   +1 more source

Improvement in calcified anaerobic granular sludge performance by exogenous acyl-homoserine lactones

open access: yesEcotoxicology and Environmental Safety, 2021
Given the high content of Ca2+ in waste paper recycling wastewater, the anaerobic granular sludge (AnGS) undergoes calcification during wastewater treatment and affects the treatment efficiency.
Meiling Li   +7 more
doaj   +1 more source

Long Chain N-acyl Homoserine Lactone Production by Enterobacter sp. Isolated from Human Tongue Surfaces

open access: yesSensors, 2012
We report the isolation of N-acyl homoserine lactone-producing Enterobacter sp. isolate T1-1 from the posterior dorsal surfaces of the tongue of a healthy individual. Spent supernatants extract from Enterobacter sp.
Kok-Gan Chan   +4 more
doaj   +1 more source

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
A Bultreys   +38 more
core   +1 more source

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

open access: yes, 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 ...
Aimee R, Paulk Tierney, Philip N, Rather
openaire   +2 more sources

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