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Quorum sensing with pheromones [PDF]
The vast majority of fungi reproduce sexually and use secreted pheromones to signal to each other. A study now shows that these signalling molecules in the fungal plant pathogen Fusarium oxysporum activate a density-dependent autocrine signal that controls asexual spore germination.
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Optimal Census by Quorum Sensing
Quorum sensing is the regulation of gene expression in response to changes in cell density. To measure their cell density, bacterial populations produce and detect diffusible molecules called autoinducers. Individual bacteria internally represent the external concentration of autoinducers via the level of monitor proteins.
Thibaud O. Taillefumier, Ned S. Wingreen
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Cheater suppression and stochastic clearance through quorum sensing.
The evolutionary consequences of quorum sensing in regulating bacterial cooperation are not fully understood. In this study, we reveal unexpected effects of regulating public good production through quorum sensing on bacterial population dynamics ...
Alexander S Moffett +3 more
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QUORUM SENSING AND GROUP SELECTION [PDF]
Bacteria respond to cell density by expressing genes whose products are beneficial to the population as a whole. This response is brought about through the release into the medium of signaling molecules of the class N-acyl homoserine lactones, the concentration of which determines the level of gene expression.
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Quorum sensing as a mechanism to harness the wisdom of the crowds
Bacteria release and sense small molecules called autoinducers in a process known as quorum sensing. The prevailing interpretation of quorum sensing is that by sensing autoinducer concentrations, bacteria estimate population density to regulate the ...
Stefany Moreno-Gámez +2 more
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A novel two-component signal transduction system in propionibacterium acnes and its association with a putative extracellular signalling peptide [PDF]
Propionibacterium acnes, a resident micro-organism of human skin, is thought to be involved in the development of inflammatory acne, which is an exclusive human disease affecting more than 80% of the whole population. Quorum sensing is the regulation of
Guan, Shuang
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Quorum Sensing of Periodontal Pathogens
The term ‘quorum sensing’ describes intercellular bacterial communication which regulates bacterial gene expression according to population cell density. Bacteria produce and secrete small molecules, named autoinducers, into the intercellular space.
Darije Plančak +2 more
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Structural studies of Vibrio cholerae quorum sensing proteins [PDF]
The spread of cholera is always associated with contaminated food or water and this is the reason this disease has been endemic in developing countries for centuries due to their lack of proper sanitation facilities and poor or no infrastructure for ...
Jahan, Nasrin
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Inhibition of Pseudomonas aeruginosa Quorum Sensing by Curcuma xanthorrhiza Roxb. Extract
Microorganisms such as Pseudomonas aeruginosa have always been adaptable in surviving the harsh environment such as antimicrobial agents via the quorum sensing (QS) mechanism.
Ahmad Fiqri Mustaqim Othman +2 more
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Dishonest Signaling in Microbial Conflicts
Quorum sensing is a cell-cell communication system that bacteria use to express social phenotypes, such as the production of extracellular enzymes or toxins, at high cell densities when these phenotypes are most beneficial.
Ihab Hashem, Jan F. M. Van Impe
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