Results 71 to 80 of about 12,623 (216)

Piscirickettsia salmonis Produces a N-Acetyl-L-Homoserine Lactone as a Bacterial Quorum Sensing System-Related Molecule

Frontiers in Cellular and Infection Microbiology, 2021
Piscirickettsia salmonis is the etiological agent of piscirickettsiosis, the most prevalent disease in salmonid species in Chilean salmonids farms. Many bacteria produce N-acyl-homoserine lactones (AHLs) as a quorum-sensing signal molecule to regulate ...
Pamela Ruiz, Pamela Ruiz, Daniela Sepulveda, José Miguel Vidal, José Miguel Vidal, Romina Romero, David Contreras, Javier Barros, Carlos Carrasco, Nathaly Ruiz-Tagle, Alex Romero, Alex Romero, Homero Urrutia, Homero Urrutia, Cristian Oliver   +14 more
doaj   +1 more source

Organic Nanoparticles in Food Systems as Antimicrobial Agents: Synthesis Strategies, Functional Properties, and Biofilm Inhibition Mechanisms

Nano Select, Volume 7, Issue 4, April 2026.
Organic nanoparticles (ONPs) derived from biopolymers provide sustainable antimicrobial platforms with tunable physicochemical properties. By enabling controlled delivery of bioactive compounds, ONPs disrupt microbial membranes, induce oxidative stress, and inhibit quorum sensing.
Huy Loc Nguyen, Thi Bich Ngoc Nguyen
wiley   +1 more source

High yield expression of an AHL-lactonase from Bacillus sp. B546 in Pichia pastoris and its application to reduce Aeromonas hydrophila mortality in aquaculture [PDF]

, 2010
Background Aeromonas hydrophila is a serious pathogen and can cause hemorrhagic septicemia in fish. To control this disease, antibiotics and chemicals are widely used which can consequently result in "superbugs" and chemical accumulation in the food ...
Ruidong Chen, Zhigang Zhou, Yanan Cao, Yingguo Bai, Bin Yao   +4 more
core   +2 more sources

Cultivation‐Based Detection of a Novel High‐GC Nitrospira Derived From the Argentinian Copahue Volcano Area

Environmental Microbiology, Volume 28, Issue 4, April 2026.
In this cultivation‐based study, two novel moderately thermophilic Nitrospira enrichments were obtained from the geothermal field Las Máquinas in the Neuquén Province, Argentina. Both nitrite oxidizers, belonging to lineage V or the novel taxonomic lineage VIII, contain quorum‐sensing genes and a high genome GC content of 60.6% and 69.4%.
Eva Spieck, Hanna Koch, Linnea F. M. Kop, Sabine Keuter, Marcel Malinowski, Katharina Sass, Wolfgang Sand, Edgardo Donati, Pablo Perez Garcia, Sebastian Lücker, Alejandra Giaveno   +10 more
wiley   +1 more source

Quorum Sensing in the Context of Food Microbiology [PDF]

, 2012
Food spoilage may be defined as a process that renders a product undesirable or unacceptable for consumption and is the outcome of the biochemical activity of a microbial community that eventually dominates according to the prevailing ecological ...
Nychas, George-John E., Skandamis, Panagiotis N.   +1 more
core   +2 more sources

Molecular Mechanisms of Algicidal Bacteria in Controlling Harmful Algal Blooms: Advances in Bacteria‐Algae Interactions

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This review elucidates the molecular mechanisms of algicidal bacteria, highlighting critical behaviours like chemotaxis, quorum sensing and extracellular vesicle release. It details how these actions disrupt algal cellular integrity, photosynthesis and calcium homeostasis, providing a theoretical foundation for controlling harmful algal blooms ...
Jiaxin Wang, Binfu Xu, Lixing Huang
wiley   +1 more source

Analysis of Bacterial Wilt Management Strategies From the Dynamic Perspective of Environmental Adaptation Approaches of Ralstonia solanacearum

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This review reframes bacterial wilt management by analysing control strategies through the lens of the pathogen's evolutionary, physiological and ecological adaptations. This mechanism‐based approach links pathogen traits to control efficacy, guiding the development of more durable solutions.
Mingzhao Han, Xin Liu, Guixiang Li, Peng Li   +3 more
wiley   +1 more source

Caffeine as a Potential Quorum Sensing Inhibitor

Sensors, 2013
Quorum sensing enables bacteria to control the gene expression in response to the cell density. It regulates a variety of bacterial physiological functions such as biofilm formation, bioluminescence, virulence factors and swarming which has been shown ...
Kok-Gan Chan, Wai-Fong Yin, Siti Nur Maisarah Norizan   +2 more
doaj   +1 more source

AidP, a novel N-Acyl Homoserine Lactonase gene from Antarctic Planococcus sp. [PDF]

, 2017
Planococcus is a Gram-positive halotolerant bacterial genus in the phylum Firmicutes, commonly found in various habitats in Antarctica. Quorum quenching (QQ) is the disruption of bacterial cell-to-cell communication (known as quorum sensing), which has ...
Chan, Kok-Gan, Convey, Peter, Ee, Robson, Lim, Yan-Lue, Pearce, David, See-Too, Wah Seng, Yin, Wai-Fong   +6 more
core   +2 more sources

The MarR Family Transcriptional Regulator EmrR Negatively Regulates the Type III Secretion System (T3SS) and Positively Modulates Pathogenicity in Dickeya oryzae

Molecular Plant Pathology, Volume 27, Issue 4, April 2026.
This study revealed that the transcriptional regulator EmrR in Dickeya oryzae modulates virulence by regulating hrpL expression and c‐di‐GMP levels. It affects motility, biofilm formation, cellulase production and pathogenicity. EMSA and footprinting confirmed EmrR binds directly to the promoter of its target operon.
Mingfa Lv, Wenqi Huang, Ziwei Meng, Xiaojing Fan, Peng Li, Zeling Xu, Shaohua Chen, Xiaoyuan Chen, Jianuan Zhou, Lianhui Zhang, Yingying Cheng, Tao Zhuo, Ming Hu   +12 more
wiley   +1 more source