Results 31 to 40 of about 97,711,914 (180)

Analysis of Autoinducer-2 Quorum Sensing in Yersinia pestis [PDF]

open access: yesInfection and Immunity, 2013
ABSTRACT The autoinducer-2 (AI-2) quorum-sensing system has been linked to diverse phenotypes and regulatory changes in pathogenic bacteria. In the present study, we performed a molecular and biochemical characterization of the AI-2 system in Yersinia pestis , the causative agent of plague. In strain CO92,
Jing, Yu   +7 more
openaire   +2 more sources

alpha-Hydroxyketone Synthesis and Sensing by Legionella and Vibrio [PDF]

open access: yes, 2012
Bacteria synthesize and sense low molecular weight signaling molecules, termed autoinducers, to measure their population density and community complexity. One class of autoinducers, the α-hydroxyketones (AHKs), is produced and detected by the water-borne
Hubert Hilbi   +5 more
core   +1 more source

The Janthinobacterium sp. HH01 genome encodes a homologue of the V. cholerae CqsA and L. pneumophila LqsA autoinducer synthases. [PDF]

open access: yes, 2013
Janthinobacteria commonly form biofilms on eukaryotic hosts and are known to synthesize antibacterial and antifungal compounds. Janthinobacterium sp. HH01 was recently isolated from an aquatic environment and its genome sequence was established.
Blokesch, Melanie   +107 more
core   +2 more sources

A Facile HPLC-UV-Based Method for Determining the Concentration of the Bacterial Universal Signal Autoinducer-2 in Environmental Samples

open access: yesApplied Sciences, 2021
As a universal quorum sensing (QS) signal, autoinducer-2 (AI-2) is utilized by both Gram-negative and Gram-positive bacteria to coordinate several group behaviors, such as biofilm formation, virulence, and motility, when the bacterial cell density ...
Kibaek Lee, Chung-Hak Lee, Kwang-Ho Choo
doaj   +1 more source

Biosynthesis of autoinducer-2 as the possible mechanism to enhance decolourisation of Azo dye by citrobacter freundii A1 [PDF]

open access: yes, 2012
In this study, we attempted to understand possible mechanism associated with bacterial azo dye decolourisation via mass spectral analysis and shotgun cloning of genomic DNA from C. freundii A1.
Giek, Far Chan   +4 more
core   +1 more source

Quorum sensing signaling molecules produced by reference and emerging soft-rot bacteria (Dickeya and Pectobacterium spp.). [PDF]

open access: yesPLoS ONE, 2012
BackgroundSeveral small diffusible molecules are involved in bacterial quorum sensing and virulence. The production of autoinducers-1 and -2, quinolone, indole and γ-amino butyrate signaling molecules was investigated in a set of soft-rot bacteria ...
Alexandre Crépin   +13 more
doaj   +1 more source

Effects of the synbiotic composed of mangiferin and Lactobacillus reuteri 1–12 on type 2 diabetes mellitus rats

open access: yesFrontiers in Microbiology, 2023
Many synbiotics are effective for the prevention and treatment of type 2 diabetes mellitus (T2DM). In the treatment of T2DM, synbiotics often regulate the composition of intestinal flora, which autoinducer-2 (AI-2) may play an important role. Whether the
Fanying Meng   +9 more
doaj   +1 more source

Examination of AI-2 quorum sensing System in Prevotella bryantii and Prevotella ruminicola-like strains by using bioluminiscence assay

open access: yesActa Agriculturae Slovenica, 2007
Rumen is an example of a complex microbial ecosystem where extensive intraspecies as well as interspecies cell-cell cross-communication is expected, but little is known about. Four ruminal Prevotella strains, Prevotella bryantii B14, TC1-1 and TF1-3, and 
Gregor GORENC   +2 more
doaj   +1 more source

N-Acyl Homoserine Lactone Production by Klebsiella pneumoniae Isolated from Human Tongue Surface

open access: yesSensors, 2012
Bacteria communicate by producing quorum sensing molecules called autoinducers, which include autoinducer-1, an N-hexanoyl homoserine lactone (AHL), and autoinducer-2.
Kok-Gan Chan   +6 more
doaj   +1 more source

The intragenus and interspecies quorum-sensing autoinducers exert distinct control over Vibrio cholerae biofilm formation and dispersal.

open access: yesPLoS Biology, 2019
Vibrio cholerae possesses multiple quorum-sensing (QS) systems that control virulence and biofilm formation among other traits. At low cell densities, when QS autoinducers are absent, V. cholerae forms biofilms.
Andrew A Bridges, Bonnie L Bassler
doaj   +1 more source

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