Results 1 to 10 of about 6,387 (184)

Advances in AHLs-Mediated Quorum Sensing System in Wastewater Biological Nitrogen Removal: Mechanism, Function, and Application

open access: yesWater Science and Technology, 2022
Biological nitrogen removal process is to convert organic nitrogen and ammonia nitrogen into nitrogen via a series of reactions by microorganisms, and is widely used in wastewater treatment for its costless, high-effective, secondary pollution-free ...
Zhixiang Gao   +3 more
exaly   +3 more sources

Acyl homoserine lactones from culture supernatants of Pseudomonas aeruginosa accelerate host immunomodulation. [PDF]

open access: yesPLoS ONE, 2011
The virulence of Pseudomonas aeruginosa is multifactorial and under the control of quorum sensing signals, such as acyl homoserine lactones (AHLs). The importance of these molecules in the establishment of infection has been previously reported.
Ravi Kumar Gupta   +2 more
doaj   +2 more sources

Identification and Characterization of Quorum-Quenching Activity of N-Acylhomoserine Lactonase from Coagulase-Negative Staphylococci

open access: yesAntibiotics, 2020
N-Acylhomoserine lactones (AHLs) are used as quorum-sensing signals in Gram-negative bacteria. Many genes encoding AHL-degrading enzymes have been cloned and characterized in various microorganisms.
Tomohiro Morohoshi   +2 more
doaj   +2 more sources

Inhibition of Quorum Sensing-Mediated Biofilm Formation and Spoilage Factors in Pseudomonas fluorescens by Plasma-Activated Water [PDF]

open access: yesFoods
Plasma-activated water (PAW) is an emerging disinfectant; however, its potential as a quorum sensing inhibitor (QSI) for biofilm control remains underexplored, and its action mechanisms have not been elucidated. This study investigated the effects of PAW
Yi-Ming Zhao   +8 more
doaj   +2 more sources

N-acyl homoserine lactone signaling modulates bacterial community associated with human dental plaque [PDF]

open access: yesnpj Biofilms and Microbiomes
Dental plaque is a complex oral biofilm responsible for periodontal diseases. Bacterial biofilms are often regulated by Quorum Sensing (QS) mediated by N-acyl homoserine lactones (AHLs). While their presence and roles in oral microbiota have been debated,
Rakesh Sikdar   +4 more
doaj   +2 more sources

Potential roles of acyl homoserine lactones (AHLs) in nitrifying bacteria survival under certain adverse circumstances

open access: yesScientific Reports, 2023
Potential roles of quorum sensing (QS) in nitrifying bacteria activity and ecology, particularly under adverse circumstances have been rarely reported.
Xiangguo Zeng, Huizhi Hu
doaj   +1 more source

Revealing the Bacterial Quorum-Sensing Effect on the Biofilm Formation of Diatom Cylindrotheca sp. Using Multimodal Imaging

open access: yesMicroorganisms, 2023
Diatoms contribute to carbon fixation in the oceans by photosynthesis and always form biofouling organized by extracellular polymeric substances (EPS) in the marine environment. Bacteria-produced quorum-sensing signal molecules N-acyl homoserine lactones
Cuiyun Yang   +4 more
doaj   +1 more source

SdiA, an N-acylhomoserine lactone receptor, becomes active during the transit of Salmonella enterica through the gastrointestinal tract of turtles. [PDF]

open access: yesPLoS ONE, 2008
LuxR-type transcription factors are typically used by bacteria to determine the population density of their own species by detecting N-acylhomoserine lactones (AHLs).
Jenee N Smith   +10 more
doaj   +1 more source

Production of both l‐ and d‐ N‐acyl‐homoserine lactones by Burkholderia cepacia and Vibrio fischeri

open access: yesMicrobiologyOpen, 2021
Quorum sensing (QS) is a complex process in which molecules, such as l‐N‐acyl‐homoserine lactones (l‐AHLs), are produced as essential signaling molecules allowing bacteria to detect and respond to cell population density by gene regulation.
Abiud E. Portillo   +2 more
doaj   +1 more source

Gram-negative quorum sensing signalling enhances biofilm formation and virulence traits in gram-positive pathogen Enterococcus faecalis

open access: yesJournal of Oral Microbiology, 2023
Acyl-homoserine lactones (AHLs) are typical quorum-sensing molecules of gram-negative bacteria. Recent evidence suggests that AHLs may also affect gram-positives, although knowledge of these interactions remains scarce.
Ana Parga   +4 more
doaj   +1 more source

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