Hydrodynamic Conditions of Quorum Sensing in Bacteria
نویسنده
چکیده
In this presentation the hydro dynamical condition of quorum sensing in the biofilm growth is investigated using convection diffusion reaction equation and analyzed environmental condition. It is used to analyze the influence of hydrodynamics and structural heterogeneities on mass transfer in this quorum sensing mechanism. The future direction of stochastic model of quorum sensing in bacteria is given.
منابع مشابه
3-D Numerical Simulations of Biofilm Dynamics with Quorum Sensing in a Flow Cell IMI PREPRINT SERIES
Biofilms are microorganisms, where bacteria are embedded in networks formed by bacteria-produced expopolysacharrides, also known as extracellular polymeric substances (EPS). Bacteria in biofilms communicate and cooperate with each other by sensing the density of signalling molecules that bacteria excrete. This phenomenon is known as quorum sensing (QS). In this paper, we develop a hydrodynamic ...
متن کاملQuorum quenching for the management of dental plaque microbes
In the present study, variation among different bacterial strains was observed in the plaques of tobacco chewers (TC) as compared to those from normal persons (non tobacco chewers) (NTC). Bacterial strain J1 (dominant in the plaques of NTC) did not initiate the process of adhesion (biofilm formation) until it appeared to have reached a required population density necessary for the production of...
متن کاملQuorum Sensing in Microbial Virulence
Cell-to cell communication occurs via a signaling pathway referred to as quorum sensing. There are four main types of these systems according to the chemical nature of signal molecules used by microorganisms to elicit expression of target genes in response to environmental stimuli or need of microbial communities. Type I system acts by using acyl homoserine lactones as signals to trigger the ex...
متن کاملAnti-quorum sensing effects of Licochalcone A and Epigallocatechin-3-gallate against Salmonella Typhimurium from poultry sources
Quorum sensing (QS) is a cell density-dependent mechanism used by many pathogenic bacteria for regulating virulence gene expression. Inhibition or interruption of QS by medicinal plant remedies has been suggested as a new strategy for fighting against antibiotic-resistant bacteria. This study aimed to assess the impact of sub-inhibitory concentrations of licochalcone A (LAA) and epigallocatechi...
متن کاملINHIBITORY EFFECT OF STEVIA AND ROSA EXTRACTS AGAINST BACTERIAL QUORUM SENSING
Background & Aims: Quorum Sensing is a mechanism by which orchestrate the expression of many genes in bacteria. Therefore, any interference with the system will inhibit bacterial infections. The principal purpose of the research was to evaluate the potential of anti-quorum sensing of Rosa damascena and Stevia rebaudiana against Staphylococcus aureus. Materials & Methods: Ten isolates of Staphy...
متن کامل