Results 61 to 70 of about 17,772 (214)

A Sinorhizobium meliloti-specific N-acyl homoserine lactone quorum-sensing signal increases nodule numbers in Medicago truncatula independent of autoregulation

open access: yesFrontiers in Plant Science, 2014
N-acyl homoserine lactones (AHLs) act as quorum sensing signals that regulate cell-density dependent behaviors in many gram-negative bacteria, in particular those important for plant-microbe interactions.
Debora Fabiola Veliz Vallejos   +3 more
doaj   +1 more source

QSCNAS: A platform for quorum sensing and quenching bacteria analysis in global wastewater treatment plants [PDF]

open access: yesImeta
This study identifies the potential quorum sensing (QS) bacteria in wastewater treatment plants (WWTPs) and constructs a QS communication network through the establishment of a local QS bacterial database with six languages and the analysis of over 1000 activated sludge microbiome samples collected from 269 WWTPs.
Wang Y, Wang S, Lv Y, Wang C.
europepmc   +2 more sources

DmdA‐independent lag phase shortening in Phaeobacter inhibens bacteria under stress conditions

open access: yesThe FEBS Journal, EarlyView.
The lag phase is crucial for resuming bacterial growth and can be shortened by fueling the methionine cycle with methyl groups from DMSP or other methylated compounds. While DmdA is the primary DMSP demethylase in Phaeobacter inhibens, stress activates additional enzymes like Bmt. This enzymatic flexibility allows bacteria to exit the lag phase rapidly,
Delia A. Narváez‐Barragán   +2 more
wiley   +1 more source

Pseudomonas cremoricolorata Strain ND07 Produces N-acyl Homoserine Lactones as Quorum Sensing Molecules

open access: yesSensors, 2014
Quorum sensing (QS) is a bacterial cell-to-cell communication system controlling QS-mediated genes which is synchronized with the population density. The regulation of specific gene activity is dependent on the signaling molecules produced, namely N-acyl
Nina Yusrina Muhamad Yunos   +8 more
doaj   +1 more source

Patch‐Clamp‐ and 15N Isotope Tracer‐Based Techniques Reveal the Transport Characteristics of SlGAT1 and the Metabolic Flow of Exogenous GABA Under Salt Stress

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT γ‐Aminobutyric acid (GABA) plays an important role in plant growth, development, and stress resistance. Exogenous GABA works by increasing the content of endogenous GABA; therefore, GABA transport from the apoplast to the cytosol is critical. In this study, two GABA transporter genes, SlGAT1 and SlGAT2 were identified in tomato.
Ding Yuan   +6 more
wiley   +1 more source

Understanding the development of bacterial colony: Physiology, new technology, and modeling

open access: yesQuantitative Biology, Volume 13, Issue 4, December 2025.
Abstract Bacterial colonies, as dynamic ecosystems, display intricate behaviors and organizational structures that profoundly influence their survival and functionality. These communities engage in physiological and social interactions, resulting in remarkable spatial heterogeneity.
Jingwen Zhu, Pan Chu, Xiongfei Fu
wiley   +1 more source

An Unprecedented Medium-Chain Diunsaturated N-acylhomoserine Lactone from Marine Roseobacter Group Bacteria

open access: yesMarine Drugs, 2018
N-acylhomoserine lactones (AHLs), bacterial signaling compounds involved in quorum-sensing, are a structurally diverse group of compounds. We describe here the identification, synthesis, occurrence and biological activity of a new AHL, N-((2E,5Z)-2,5 ...
Lisa Ziesche   +7 more
doaj   +1 more source

Within‐Host Mathematical Modeling of Antibiotic‐phage Treatments on Lysogenic and Nonlysogenic Bacteria Dynamics

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 10, Page 10550-10570, 15 July 2025.
ABSTRACT Bacteriophages, or phages (viruses of bacteria), play significant roles in shaping the diversity of bacterial communities within the human gut. A phage‐infected bacterial cell can either immediately undergo lysis (virulent/lytic infection) or enter a stable state within the host as a prophage (lysogeny) until a trigger event, called prophage ...
Hyacinthe M. Ndongmo Teytsa   +3 more
wiley   +1 more source

Quorum quenching activity of Bacillus cereus isolate 30b confers antipathogenic effects in Pseudomonas aeruginosa

open access: yesInfection and Drug Resistance, 2019
Marwa M Raafat,1 Marwa Ali-Tammam,1 Amal E Ali11Department of Microbiology & Immunology, Faculty of Pharmaceutical Sciences & Pharmaceutical Industries, Future University in Egypt (FUE), New Cairo, EgyptBackground: Quorum quenching, the ...
Raafat MM, Ali-Tammam M, Ali AE
doaj  

Rhodotorula Mucilaginosa, a Quorum Quenching Yeast Exhibiting Lactonase Activity Isolated from a Tropical Shoreline

open access: yesSensors, 2014
Two microbial isolates from a Malaysian shoreline were found to be capable of degrading N-acylhomoserine lactones. Both Matrix Assisted Laser Desorption Ionization-Time of Flight-Mass Spectrometry and 18S rDNA phylogenetic analyses confirmed that these ...
Norshazliza Ab Ghani   +5 more
doaj   +1 more source

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