Results 21 to 30 of about 8,005 (293)

The Role of luxS in the Middle Ear Streptococcus pneumoniae Isolate 947

open access: yesPathogens, 2022
The LuxS protein, encoded by luxS, is required for the production of autoinducer 2 (AI-2) in Streptococcus pneumoniae. The AI-2 molecule serves as a quorum sensing signal, and thus regulates cellular processes such as carbohydrate utilisation and biofilm
Alexandra Tikhomirova   +5 more
doaj   +1 more source

mRNA-Seq reveals the quorum sensing system luxS gene contributes to the environmental fitness of Streptococcus suis type 2

open access: yesBMC Microbiology, 2021
Background Streptococcus suis type 2 (SS2) is an important zoonotic pathogen. We have previously reported the structure of LuxS protein and found that the luxS gene is closely related to biofilm, virulence gene expression and drug resistance of SS2 ...
Jinpeng Li   +8 more
doaj   +1 more source

Sinorhizobium Meliloti, A Bacterium Lacking The Autoinducer-2 (AI-2) Synthase, Responds To AI-2 Supplied By Other Bacteria [PDF]

open access: yes, 2008
Many bacterial species respond to the quorum-sensing signal autoinducer-2 (AI-2) by regulating different niche-specific genes. Here, we show that Sinorhizobium meliloti, a plant symbiont lacking the gene for the AI-2 synthase, while not capable of ...
McAuley, J. R.   +4 more
core   +2 more sources

High sporulation and overexpression of virulence factors in biofilms and reduced susceptibility to vancomycin and linezolid in recurrent Clostridium [Clostridioides] difficile infection isolates [PDF]

open access: yes, 2019
Clostridium [Clostridioides] difficile infection (CDI) is one of the leading causes of diarrhea associated with medical care worldwide, and up to 60% of patients with CDI can develop a recurrent infection (R-CDI). A multi-species microbiota biofilm model
Baines, Simon   +9 more
core   +2 more sources

luxS contributes to intramacrophage survival of Streptococcus agalactiae by positively affecting the expression of fruRKI operon

open access: yesVeterinary Research, 2023
The LuxS quorum sensing system is a widespread system employed by many bacteria for cell-to-cell communication. The luxS gene has been demonstrated to play a crucial role in intramacrophage survival of piscine Streptococcus agalactiae, but the underlying
Qing Cao   +8 more
doaj   +1 more source

Evaluating Streptococcus mutans strain dependent characteristics in a polymicrobial biofilm community [PDF]

open access: yes, 2018
Aim: The purpose of this study was to investigate strain dependent differences of the cariogenic biofilm forming Streptococcus mutans within both simple and complex communities. Methods: A mono-species containing representative S.
David F. Lappin   +9 more
core   +2 more sources

Microbial communities and bioactive compounds in marine sponges of the family Irciniidae-a review [PDF]

open access: yes, 2014
Marine sponges harbour complex microbial communities of ecological and biotechnological importance. Here, we propose the application of the widespread sponge family Irciniidae as an appropriate model in microbiology and biochemistry research. Half a gram
Anand   +136 more
core   +2 more sources

Genome-wide survey and phylogeny of S-Ribosylhomocysteinase (LuxS) enzyme in bacterial genomes [PDF]

open access: yes, 2016
Background: The study of survival and communication of pathogenic bacteria is important to combat diseases caused by such micro-organisms. Bacterial cells communicate with each other using a density-dependent cell-cell communication process called ...
Pasha, Shaik Naseer.   +2 more
core   +9 more sources

Functional analysis of the group A streptococcal luxS/AI-2 system in metabolism, adaptation to stress and interaction with host cells

open access: yesBMC Microbiology, 2008
Background The luxS/AI-2 signaling pathway has been reported to interfere with important physiological and pathogenic functions in a variety of bacteria.
Zinkl Daniela   +5 more
doaj   +1 more source

1,8-Cineole inhibits biofilm formation and bacterial pathogenicity by suppressing luxS gene expression in Escherichia coli

open access: yesFrontiers in Pharmacology, 2022
In recent years, with frequent reports of multi-drug resistant strains, bacteria antibiotic resistance has become an increasingly serious health problem worldwide.
Yiming Wang   +17 more
doaj   +1 more source

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