Results 11 to 20 of about 1,650 (165)

Influence of bacterial N-acyl-homoserinelactones on growth parameters, pigments, antioxidative capacities and the xenobiotic phase II detoxification enzymes in barley and yam bean

Frontiers in Plant Science, 2015
Bacteria are able to communicate with each other and sense their environment in a population density dependent mechanism known as quorum sensing (QS). N-acyl-homoserine lactones (AHLs) are the QS signalling compounds of Gram-negative bacteria which are ...
Christine eGoetz-Roesch, Tina eRiedel, Agnes eFekete, Philippe eSchmitt-Kopplin, Anton eHartmann, Peter eSchröder   +5 more
doaj   +2 more sources

Characteristics of N-Acylhomoserine Lactones Produced by Hafnia alvei H4 Isolated from Spoiled Instant Sea Cucumber

Sensors, 2017
This study aimed to identify N-acylhomoserine lactone (AHL) produced by Hafnia alvei H4, which was isolated from spoiled instant sea cucumber, and to investigate the effect of AHLs on biofilm formation.
Hong-Man Hou, Yao-Lei Zhu, Jia-Ying Wang, Feng Jiang, Wen-Yan Qu, Gong-Liang Zhang, Hong-Shun Hao   +6 more
doaj   +2 more sources

Phenazine-1-Carboxamide Production in the Biocontrol Strain Pseudomonas chlororaphis PCL1391 Is Regulated by Multiple Factors Secreted into the Growth Medium [PDF]

Molecular Plant-Microbe Interactions, 2001
Pseudomonas chlororaphis PCL1391 controls tomato foot and root rot caused by Fusarium oxysporum f. sp. radicislycopersici. The production of phenazine-1-carboxamide (PCN) is crucial for this biocontrol activity.
Thomas F. C. Chin-A-Woeng, Daan van den Broek, Gert de Voer, Koen M. G. M. van der Drift, Sietske Tuinman, Jane E. Thomas-Oates, Ben J. J. Lugtenberg, Guido V. Bloemberg   +7 more
doaj   +3 more sources

Effect of the luxI/R gene on AHL-signaling molecules and QS regulatory mechanism in Hafnia alvei H4

AMB Express, 2019
Hafnia alvei H4 is a bacterium subject to regulation by a N-acyl-l-homoserine lactone (AHL)-mediated quorum sensing system and is closely related to the corruption of instant sea cucumber.
Xue Li, Gongliang Zhang, Yaolei Zhu, Jingran Bi, Hongshun Hao, Hongman Hou   +5 more
doaj   +2 more sources

Identification, cloning and lactonase activity of recombinant protein of N-acyl homoserine lactonase (AiiA) from Bacillus thuringiensis 147-115-16 strain.

Revista Colombiana de Biotecnología, 2014
Título en español: Identificación, clonación y actividad lactonasa de la proteína recombinante de N-ácil homoserina lactonasa (AiiA) de Bacillus thuringiensis cepa 147-115-16  Short title: N-acyl homoserine lactonase (AiiA) from Bacillus thuringiensis ...
Alvaro Mauricio Florez Escobar, Adriana Gonzalez, Carmen J. Pedroza, Elizabeth Correa, Nohora J. Rueda, Sergio Orduz   +5 more
doaj   +2 more sources

Computational exploration of Picrasma quassioides compounds as CviR-mediated quorum sensing inhibitors against Chromobacterium violaceum

Frontiers in Chemistry
Chromobacterium violaceum an opportunistic human pathogenic bacterium, exhibits resistance to conventional antibiotics by exploiting its quorum sensing mechanism to regulate virulence factor expression.
Prasanna D. Revanasiddappa, Gowtham H. G., Chandana K. P., Shilpa Natarajamurthy, Nataraj K., Sushma Pradeep, Chandan Shivamallu, Gehan M. Elossaily, Raghu Ram Achar, Ekaterina Silina, Victor Stupin, Natalia Manturova, Ali A. Shati, Mohammad Y. Alfaifi, Serag Eldin I. Elbehairi, Amruthesh Kestur Nagaraj, Murali Mahadevamurthy, Shiva Prasad Kollur   +17 more
doaj   +2 more sources

Quorum Sensing: Not Just a Bridge Between Bacteria. [PDF]

Microbiologyopen
Quorum quenching and quorum sensing inhibitors show significant potential in regulating bacterial quorum sensing systems and have been widely applied across various fields, including cancer treatment, antimicrobial resistance, marine management, microplastic reduction, hydrogel technology, and nanomaterials development.
Liu D, Lu Y, Li Z, Pang X, Gao X.
europepmc   +2 more sources

A Novel Screening System to Characterize and Engineer Quorum Quenching Lactonases. [PDF]

Biotechnol Bioeng
A new medium‐throughput screening system for identifying and characterizing N‐acyl L‐homoserine lactonases (AHLs), which hydrolyze bacterial communication signals and interfere With quorum sensing, was developed using N‐acyl L‐homocysteine thiolactones as chromogenic analogues.
Sompiyachoke K, Bravo J, Sikdar R, Abdullah J, Elias MH.   +4 more
europepmc   +2 more sources

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

Ecotoxicology 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, Yueru Wu, Zhiwei Wang, Wencai Fu, Wenhao Dang, Yongli Chen, Yi Ning, Shuangfei Wang   +7 more
doaj   +1 more source

Engineering quorum quenching acylases with improved kinetic and biochemical properties. [PDF]

Protein Sci
Abstract Many Gram‐negative bacteria use N‐acyl‐L‐homoserine lactone (AHL) signals to coordinate phenotypes such as biofilm formation and virulence factor production. Quorum‐quenching enzymes, such as AHL acylases, chemically degrade these molecules which prevents signal reception by bacteria and inhibits undesirable biofilm‐related traits.
Sompiyachoke K, Elias MH.
europepmc   +2 more sources