Results 21 to 30 of about 24,909,167 (135)

Molecular Mechanisms of Algicidal Bacteria in Controlling Harmful Algal Blooms: Advances in Bacteria-Algae Interactions. [PDF]

Environ Microbiol Rep
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 ...
Wang J, Xu B, Huang L.
europepmc   +2 more sources

A membrane protein of the rice pathogen Burkholderia glumae required for oxalic acid secretion and quorum sensing

Molecular Plant Pathology, Volume 24, Issue 11, Page 1400-1413, November 2023., 2023
The quorum sensing‐regulated synthesis of oxalic acid by ObcAB is needed to prevent alkaline degradation of C8‐HSL quorum sensing signalling molecules and avoid alkaline toxicity. The DedA family protein DbcA is required for oxalic acid secretion. Abstract Bacterial panicle blight is caused by Burkholderia glumae and results in damage to rice crops ...
Asif Iqbal, George Nwokocha, Vijay Tiwari, Inderjit K. Barphagha, Anne Grove, Jong Hyun Ham, William T. Doerrler   +6 more
wiley   +1 more source

Herbicolin A production and its modulation by quorum sensing in a Pantoea agglomerans rhizobacterium bioactive against a broad spectrum of plant‐pathogenic fungi

Microbial Biotechnology, Volume 16, Issue 8, Page 1690-1700, August 2023., 2023
Herbicolin A biosynthesis is responsible for the strong antagonistic activities of the rhizosphere bacterium Pantoea agglomerans 9Rz4 against a broad spectrum of phytopathogenic fungi. Abstract Global population growth makes it necessary to increase agricultural production yields.
Miguel A. Matilla, Terry J. Evans, Jesús Martín, Zulema Udaondo, Cristina Lomas‐Martínez, Míriam Rico‐Jiménez, Fernando Reyes, George P. C. Salmond   +7 more
wiley   +1 more source

Pantoea ananatis carotenoid production confers toxoflavin tolerance and is regulated by Hfq‐controlled quorum sensing

MicrobiologyOpen, Volume 10, Issue 1, February 2021., 2021
Carotenoid production confers tolerance to toxoflavin and UV radiation in Pantoea ananatis. We proposed a model of carotenoid production for the previously reported regulatory network HfqArcZ → RpoS Ͱ ClpXP and that identified here, in which Hfq‐controlled quorum signaling derepresses EanR to activate RpoS expression, thereby initiating carotenoid ...
Okhee Choi, Byeongsam Kang, Yongsang Lee, Yeyeong Lee, Jinwoo Kim   +4 more
wiley   +1 more source

Detection of N-hexanoyl-L-homoserine lactone via MIP-based QCM sensor: preparation and characterization

, 2023
While high living organisms use sounds and words to communicate with each other, bacteria provide this function with some communication molecules.
Acet, Ömür, Odabasi, Mehmet, Odabaşı, Mehmet   +2 more
core   +1 more source

Design of β-Keto Esters with Antibacterial Activity: Synthesis, In Vitro Evaluation, and Theoretical Assessment of Their Reactivity and Quorum-Sensing Inhibition Capacity

Pharmaceuticals, 2023
This work proposes the design of β-keto esters as antibacterial compounds. The design was based on the structure of the autoinducer of bacterial quorum sensing, N-(3-oxo-hexanoyl)-l-homoserine lactone (3-oxo-C6-HSL).
Maximiliano Martínez-Cifuentes, Emmanuel Soto-Tapia, Camila Linares-Pipón, Ben Bradshaw, Paulina Valenzuela-Hormazabal, David Ramírez, Patricio Muñoz-Torres, Claudio Parra   +7 more
doaj   +1 more source

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

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   +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

Application of molecularly imprinted polymer nanoparticles for degradation of the bacterial autoinducer N-hexanoyl homoserine lactone.

, 2019
A novel bacterial quorum quenching system is presented. For the first time the degradation of N-l-hexanoyl homoserine lactone (C6-AHL), a Gram-negative quorum sensing autoinducer, has been enhanced using molecularly imprinted nanoparticles (MIP NPs ...
SA Piletsky (7703918), J Czulak (7703915), J Garcia Lopez (7808948), MJ Whitcombe (7734338), EV Piletska (7771565)   +4 more
core   +4 more sources

The Addition of N-Hexanoyl-Homoserine Lactone to Improve the Microbial Flocculant Production of Agrobacterium tumefaciens Strain F2, an Exopolysaccharide Bioflocculant-Producing Bacterium.

, 2022
In this study, N-hexanoyl-homoserine lactone (C6-HSL), a member of the N-acyl-homoserine lactone class of microbial quorum sensing (QS) signaling molecules, was used to improve microbial flocculant production.
Pi, S, Ma, F, Guo, H, Yang, J, Wu, D, Chen, H, Wei, W, Li, A   +7 more
core   +1 more source