Exploring AI-2-mediated interspecies communications within rumen microbial communities [PDF]
Microbiome, 2022 Background The rumen is an ecosystem with a complex microbial microflora in which microbes initiate biofilm formation by attaching to plant surfaces for plant degradation and are capable of converting feed to nutrients and energy via microbial processes.
Xiaozhen Liu +6 more
doaj +4 more sources
LsrB-based and temperature-dependent identification of bacterial AI-2 receptor [PDF]
AMB Express, 2017 The luxS gene is required for autoinducer-2 (AI-2) synthesis in many bacterial species. AI-2 is taken up by a specific receptor to regulate multiple bacterial activities.
Yuxi Zhang +10 more
doaj +5 more sources
The LuxS‐dependent autoinducer AI‐2 controls the expression of an ABC transporter that functions in AI‐2 uptake in Salmonella typhimurium [PDF]
Molecular Microbiology, 2001 In a process called quorum sensing, bacteria communicate with one another using secreted chemical signalling molecules termed autoinducers. A novel autoinducer called AI‐2, originally discovered in the quorum‐sensing bacterium Vibrio harveyi, is made by many species of Gram‐negative and Gram‐positive bacteria.
Michiko E. Taga +2 more
openalex +4 more sources
Diet Shift May Trigger LuxS/AI-2 Quorum Sensing in Rumen Bacteria. [PDF]
Bioengineering (Basel), 2022 Recent studies have revealed that LuxS/AI-2 quorum sensing (QS) is the most universal cell-to-cell communication in rumen bacteria; however, it remains unknown how they respond to nutritional stress from a diet shift. This study aimed to explore whether a diet shift could trigger rumen bacterial LuxS/AI-2 QS and its influences on rumen fermentation ...
Wei X, Long T, Li Y, Ouyang K, Qiu Q.
europepmc +4 more sources
Regulatory Mechanisms of the LuxS/AI-2 System and Bacterial Resistance. [PDF]
Antimicrob Agents Chemother, 2019 The quorum-sensing (QS) system is an intercellular cell-cell communication mechanism that controls the expression of genes involved in a variety of cellular processes and that plays critical roles in the adaption and survival of bacteria in their environment.
Wang Y, Liu B, Grenier D, Yi L.
europepmc +4 more sources
Regulation of bacteria population behaviors by AI-2 “consumer cells” and “supplier cells” [PDF]
BMC Microbiology, 2017 Background Autoinducer-2 (AI-2) is a universal signal molecule and enables an individual bacteria to communicate with each other and ultimately control behaviors of the population.
Yufen Quan +9 more
doaj +2 more sources
Pulse Rate Variability Analysis Using Remote Photoplethysmography Signals
Sensors, 2021 Pulse rate variability (PRV) refers to the change in the interval between pulses in the blood volume pulse (BVP) signal acquired using photoplethysmography (PPG). PRV is an indicator of the health status of an individual’s autonomic nervous system.
Su-Gyeong Yu +4 more
doaj +1 more source
Face Biometric Spoof Detection Method Using a Remote Photoplethysmography Signal
Sensors, 2022 Spoofing attacks in face recognition systems are easy because faces are always exposed. Various remote photoplethysmography-based methods to detect face spoofing have been developed. However, they are vulnerable to replay attacks.
Seung-Hyun Kim +2 more
doaj +1 more source
Time-behavior of pile groups based on fractional derivative soil model
Yantu gongcheng xuebao, 2022 Based on the finite element method, the finite element equations for the vertically loaded pile groups are established by dividing the pile groups into a number of 2-node elements.
AI Zhi-yong 1, 2, YE Zi-kun 1, 2, LIU Wen-jie 1, 2
doaj +1 more source
AI-2-mediated signalling in bacteria [PDF]
FEMS Microbiology Reviews, 2013 Success in nature depends upon an ability to perceive and adapt to the surrounding environment. Bacteria are not an exception; they recognize and constantly adjust to changing situations by sensing environmental and self-produced signals, altering gene expression accordingly.
Catarina S, Pereira +2 more
openaire +2 more sources