Results 41 to 50 of about 6,063 (169)

Bacterial LuxR solos have evolved to respond to different molecules including signals from plants

Frontiers in Plant Science, 2013
A future challenge will be understanding the extensive communication that most likely takes place in bacterial interspecies and interkingdom signaling between plants and bacteria.
Hitendra K. Patel, Zulma Rocío Suárez-Moreno, Giuliano eDegrassi, Sujatha eSubramoni, Juan F. Gonzalez, Vittorio eVenturi   +5 more
doaj   +1 more source

LuxR-family ‘solos’: bachelor sensors/regulators of signalling molecules [PDF]

Microbiology, 2009
N-Acylhomoserine lactone (AHL) quorum-sensing (QS) signalling is the best-understood chemical language in proteobacteria. In the last 15 years a large amount of research in several bacterial species has revealed in detail the genetic, molecular and biochemical mechanisms underlying AHL signalling. These studies have revealed the role
Sujatha Subramoni, Vittorio Venturi
openaire   +3 more sources

AphA and LuxR/HapR reciprocally control quorum sensing in vibrios [PDF]

Genes & Development, 2011
Bacteria cycle between periods when they perform individual behaviors and periods when they perform group behaviors. These transitions are controlled by a cell–cell communication process called quorum sensing, in which extracellular signal molecules, called autoinducers (AIs), are released, accumulate, and are synchronously detected by a group of ...
Steven T, Rutherford, Julia C, van Kessel, Yi, Shao, Bonnie L, Bassler   +3 more
openaire   +2 more sources

Robust and sensitive control of a quorum‐sensing circuit by two interlocked feedback loops

Molecular Systems Biology, 2008
The quorum‐sensing (QS) response of Vibrio fischeri involves a rapid switch between low and high induction states of the lux operon over a narrow concentration range of the autoinducer (AI) 3‐oxo‐hexanoyl‐L‐homoserine lactone.
Joshua W Williams, Xiaohui Cui, Andre Levchenko, Ann M Stevens   +3 more
doaj   +1 more source

In silico Analysis Reveals Distribution of Quorum Sensing Genes and Consistent Presence of LuxR Solos in the Pandoraea Species

Frontiers in Microbiology, 2019
The most common quorum sensing (QS) system in Gram-negative bacteria consists of signaling molecules called N-acyl-homoserine lactones (AHLs), which are synthesized by an enzyme AHL synthase (LuxI) and detected by a transcriptional regulator (LuxR) that ...
Kah-Ooi Chua, Wah-Seng See-Too, Robson Ee, Yan-Lue Lim, Wai-Fong Yin, Kok-Gan Chan, Kok-Gan Chan   +6 more
doaj   +1 more source

Oral microbiome and homeostatic regulation of periodontal health: From dysbiosis to precision intervention

VIEW, EarlyView.
Periodontal homeostasis is maintained by coordinated interactions between the oral microbiome and host. Dysbiosis disrupts this ecological balance and contributes to periodontal disease, whereas multi‐omics, artificial intelligence, and microbiome‐based interventions provide emerging opportunities for precision diagnosis, ecological restoration, and ...
Xu Liu, Lei Meng, Wenzhu Song, Peiyu Wang, Bin Liu, Shihui Liu, Qi He, Bing Sun, Wanheng Li, Zhiwei Guan, Rui Dong, Qiang Feng   +11 more
wiley   +1 more source

Development of a Multiplex Quantitative PCR Assay for Simultaneous Detection of Multiple Vibrio Species in Aquaculture Samples

Journal of Fish Diseases, EarlyView.
ABSTRACT Aquaculture associated Vibrio species are important bacterial pathogens causing significant economic losses in aquaculture and zoonotic infections in humans. Rapid and accurate detection of Vibrio species is therefore essential for diagnosis, surveillance and control.
İnci Başak Müştak, Hamit Kaan Müştak, Seyyide Sarıçam İnce, Doğukan Uğun, Görkem Cengiz, Gültekin Ünal, Ebru Torun, Muammer Göncüoğlu   +7 more
wiley   +1 more source

Conversion of the Vibrio fischeri Transcriptional Activator, LuxR, to a Repressor [PDF]

Journal of Bacteriology, 2000
ABSTRACT The Vibrio fischeri luminescence ( lux ) operon is regulated by a quorum-sensing system that involves the transcriptional activator (LuxR) and an acyl-homoserine lactone signal. Transcriptional activation requires the presence of a 20-base inverted repeat termed the
K A, Egland, E P, Greenberg
openaire   +2 more sources

Proto‐Panic Modulation by Caffeine‐Proteinoid Complexes

Journal of Applied Polymer Science, Volume 143, Issue 41, November 5, 2026.
Caffeine–proteinoid microspheres synthesized by thermal polymerization exhibit compartmentalized drug loading with encapsulation efficiencies of 61%–82% and triphasic release kinetics. Electrochemical monitoring reveals multi‐scale oscillatory dynamics consistent with chaotic and damped harmonic behavior, while Boolean logic operations demonstrate ...
Panagiotis Mougkogiannis, Andrew Adamatzky   +1 more
wiley   +1 more source

ExpI and PhzI are descendants of the long lost cognate signal synthase for SdiA. [PDF]

PLoS ONE, 2012
SdiA of E. coli and Salmonella is a LuxR homolog that detects N-acyl homoserine lactones (AHLs). Most LuxR homologs function together with a cognate AHL synthase (a LuxI homolog), but SdiA does not.
Anice Sabag-Daigle, Brian M M Ahmer
doaj   +1 more source