Results 31 to 40 of about 96,079 (210)

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

The 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, Huey Jia Cheng, Jian Woon Chen, Wai-Fong Yin, Yun Fong Ngeow   +4 more
doaj   +1 more source

Positive Autoregulation of an Acyl-Homoserine Lactone Quorum-Sensing Circuit Synchronizes the Population Response

mBio, 2017
Many proteobacteria utilize acyl-homoserine lactone quorum-sensing signals. At low population densities, cells produce a basal level of signal, and when sufficient signal has accumulated in the surrounding environment, it binds to its receptor, and ...
Rebecca L. Scholz, E. Peter Greenberg
doaj   +1 more source

Distinctive Growth and Transcriptional Changes of the Diatom Seminavis robusta in Response to Quorum Sensing Related Compounds

Frontiers in Microbiology, 2020
In aquatic habitats, diatoms are frequently found in association with Proteobacteria, many members of which employ cell-to-cell communication via N-acyl homoserine lactones (AHLs).
Frederike Stock, Gust Bilcke, Gust Bilcke, Gust Bilcke, Gust Bilcke, Sam De Decker, Cristina Maria Osuna-Cruz, Cristina Maria Osuna-Cruz, Cristina Maria Osuna-Cruz, Koen Van den Berge, Koen Van den Berge, Emmelien Vancaester, Emmelien Vancaester, Emmelien Vancaester, Lieven De Veylder, Lieven De Veylder, Klaas Vandepoele, Klaas Vandepoele, Klaas Vandepoele, Sven Mangelinckx, Wim Vyverman   +20 more
doaj   +1 more source

Effect of adding exogenous acyl homoserine lactone signal to Pseudomonas aeruginosa premature culture and prediction of signal binding domain in Rhamnolipids RhlA enzyme

Archives of Pharmaceutical Sciences Ain Shams University, 2022
The hierarchy of quorum sensing system plays a crucial role in Pseudomonas (P.) aeruginosa virulence and production of important industrial bacterial products like rhamnolipids and proteases.
Masarra M Sakr, Ghadir El-Housseiny , Noha S Elsayed   +2 more
doaj   +1 more source

Involvement of Acylated Homoserine Lactones (AHLs) of Aeromonas sobria in Spoilage of Refrigerated Turbot (Scophthalmus maximus L.)

Sensors, 2016
One quorum sensing strain was isolated from spoiled turbot. The species was determined by 16S rRNA gene analysis and classical tests, named Aeromonas sobria AS7.
Tingting Li, Fangchao Cui, Fengling Bai, Guohua Zhao, Jianrong Li   +4 more
doaj   +1 more source

Profiling acylated homoserine lactones in Yersinia ruckeri and influence of exogenous acyl homoserine lactones and known quorum-sensing inhibitors on protease production [PDF]

Journal of Applied Microbiology, 2007
To profile the quorum-sensing (QS) signals in Yersinia ruckeri and to examine the possible regulatory link between QS signals and a typical QS-regulated virulence phenotype, a protease.Liquid chromatography-high resolution mass spectrometry (HPLC-HRMS) showed that Y.
V G, Kastbjerg, K F, Nielsen, I, Dalsgaard, M, Rasch, J B, Bruhn, M, Givskov, L, Gram   +6 more
openaire   +2 more sources

Quorum Sensing Activity of Enterobacter asburiae Isolated from Lettuce Leaves

Sensors, 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, Jian Woon Chen, Wai-Fong Yin, Yin Yin Lau, Joanita Sulaiman   +4 more
doaj   +1 more source

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

Frontiers 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, Xinghui Fan, Tian Ye, Tian Ye, Qiting Li, Qiting Li, Pankaj Bhatt, Pankaj Bhatt, Lianhui Zhang, Lianhui Zhang, Shaohua Chen, Shaohua Chen   +11 more
doaj   +1 more source

Human Paraoxonase-2 (PON2): Protein Functions and Modulation

Antioxidants, 2021
PON1, PON2, and PON3 belong to a family of lactone hydrolyzing enzymes endowed with various substrate specificities. Among PONs, PON2 shows the highest hydrolytic activity toward many acyl-homoserine lactones (acyl-HL) involved in bacterial quorum ...
Giuseppe Manco, Elena Porzio, Teresa Maria Carusone   +2 more
doaj   +1 more source

Quorum Sensing Activity of Mesorhizobium sp. F7 Isolated from Potable Water

The Scientific World Journal, 2014
We isolated a bacterial isolate (F7) from potable water. The strain was identified as Mesorhizobium sp. by 16S rDNA gene phylogenetic analysis and screened for N-acyl homoserine lactone (AHL) production by an AHL biosensor. The AHL profile of the isolate
Pei-Ling Yong, Kok-Gan Chan
doaj   +1 more source