Results 21 to 30 of about 3,713 (189)

The growth characteristics of algae in the presence of N-acylhomoserine lactones

Water Supply, 2023
Abstract Algal–bacterial symbiotic system is ubiquitous in natural water and has an important impact on water quality and environment such as algal toxins from extracellular secretions. In general, the species diversity and abundance of this system can be dynamically regulated by quorum sensing (QS).
Yuankun Yang, Xinyu Wen, Jie Liu, Shu Chen, Bin Wang   +4 more
openaire   +2 more sources

The fitness burden imposed by synthesising quorum sensing signals [PDF]

, 2016
It is now well established that bacterial populations utilize cell-to-cell signaling (quorum-sensing, QS) to control the production of public goods and other co-operative behaviours.
Ashawesh, M.M., Barrett, David A., Diggle, Stephen P., Dubern, Jean-Frédéric, Emtage, A., Halliday, N.M., Hardie, Kim R., Harrison, F., Laughton, Charles A., Ortori, Catharine A., Ruparell, Avika, Williams, P.   +11 more
core   +8 more sources

Genetic and Biochemical Diversity for N-acylhomoserine Lactone Biosynthesis in the Plant Pathogen Pectobacterium carotovorum subsp. carotovorum. [PDF]

Microbes Environ, 2019
The plant pathogen Pectobacterium carotovorum subsp. carotovorum (Pcc) regulates the expression of virulence factors by N-acylhomoserine lactone (AHL)-mediated quorum sensing. The LuxI family protein, ExpI, catalyzes AHL biosynthesis in Pcc. The structure of the predominant AHL produced by ExpI differs among Pcc strains, which may be divided into two ...
Morohoshi T, Ogasawara Y, Xie X, Hamamoto H, Someya N.   +4 more
europepmc   +3 more sources

Labrenzia sp. BM1: A Quorum Quenching Bacterium That Degrades N-acyl Homoserine Lactones via Lactonase Activity

Sensors, 2014
We report the degradation of quorum sensing N-acylhomoserine lactone molecules by a bacterium isolated from a Malaysian marine water sample. MALDI-TOF and phylogenetic analysis indicated this isolate BM1 clustered closely to Labrenzia sp.
Norshazliza Ab Ghani, Siti Nur Maisarah Norizan, Xin Yue Chan, Wai-Fong Yin, Kok-Gan Chan   +4 more
doaj   +1 more source

Evaluation of a new high-throughput method for identifying quorum quenching bacteria [PDF]

, 2013
Quorum sensing (QS) is a population-dependent mechanism for bacteria to synchronize social behaviors such as secretion of virulence factors. The enzymatic interruption of QS, termed quorum quenching (QQ), has been suggested as a promising alternative ...
Bossier, Peter, Coenye, Tom, Shi, Xiaochong, Tang, Kaihao, Yu, Min, Zhang, Xiao-Hua, Zhang, Yunhui   +6 more
core   +2 more sources

Quorum‐sensing in Acetobacter pasteurianus and its effect on acetic acid fermentation

Food Bioengineering, Volume 2, Issue 3, Page 233-241, September 2023., 2023
In this present work, the presence of quorum‐sensing (QS) in Acetobacter pasteurianus was demonstrated, and N‐acyl‐homoserine lactones N‐C4‐HSL and N‐C8‐HSL were identifying as the signal molecules. And, the effects of QS signal molecules and overexpression of a potential N‐acylhomoserine lactonase 0046 on acetic acid fermentation were analyzed ...
Hang Zhao, Zhiwei Feng, Xueli Han, Jiao Wang, Ying Xu, Weizhao Li, Yu Zheng, Min Wang   +7 more
wiley   +1 more source

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]

, 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., Spiers, A. J., Thomas, S., Vaseeharan, B., Vinoj, G.   +4 more
core   +3 more sources

N-acylhomoserine lactone-degrading bacteria isolated from hatchery bivalve larval cultures

Microbiological Research, 2013
Quorum sensing (QS) systems, which depend on N-acylhomoserine lactone (AHL) signal molecules, mediate the production of virulence factors in many pathogenic microorganisms. One hundred and forty-six bacterial strains, isolated from a bivalve hatchery, were screened for their capacity to degrade five synthetic AHLs [N-butyryl-DL-homoserine lactone (C4 ...
Torres, Marta, Romero, Manuel, Prado, Susana, Dubert, Javier, Tahrioui, Ali, Otero, Ana, Llamas, Inmaculada   +6 more
openaire   +4 more sources

5‐(3′,4′‐Dihydroxyphenyl)‐γ‐Valerolactone Is a Substrate for Human Paraoxonase: A Novel Pathway in Flavan‐3‐ol Metabolism

Molecular Nutrition &Food Research, Volume 67, Issue 17, September 2023., 2023
Flavan‐3‐ols are important food bioactives and levels of certain metabolites are thought to be solely derived from action of the gut microbiome. However, the authors show that a family of human enzymes, paraoxonases, are key players modulating levels of these metabolites.
Tony Y. Momma, Gunter G. C. Kuhnle, Reedmond Y. Fong, Jodi L. Ensunsa, Alan Crozier, Hagen Schroeter, Javier I. Ottaviani   +6 more
wiley   +1 more source

Detection of Quorum Sensing Activity in the Multidrug-Resistant Clinical Isolate Pseudomonas aeruginosa Strain GB11

Sensors, 2014
A multidrug-resistant clinical bacteria strain GB11 was isolated from a wound swab on the leg of a patient. Identity of stain GB11 as Pseudomonas aeruginosa was validated by using matrix-assisted laser desorption/ionization-time-of-flight mass ...
Huey Jia Cheng, Robson Ee, Yuet Meng Cheong, Wen-Si Tan, Wai-Fong Yin, Kok-Gan Chan   +5 more
doaj   +1 more source