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Bacterial Interference Caused by Autoinducing Peptide Variants
Science, 1997The synthesis of virulence factors and other extracellular proteins by Staphylococcus aureus is globally controlled by the agr locus, which encodes a two-component signaling pathway whose activating ligand is an agr -encoded autoinducing peptide.
G, Ji, R, Beavis, R P, Novick
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Isolation of agr Quorum Sensing Autoinducers
2010Autoregulation of genes is often associated with quorum sensing systems where bacteria produce and secrete molecules that allow the cells to communicate with one another, leading to the activation of certain genes at certain population densities. Here we describe the identification of the agr as a quorum sensing system in Staphylococcus aureus and the ...
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Methods for Analysis of Bacterial Autoinducer‐2 Production
Current Protocols in Microbiology, 2005AbstractThe quorum‐sensing signal molecule autoinducer‐2 (AI‐2) is produced by over 50 diverse bacterial species and controls many different processes, including antibiotic production, biofilm formation, and virulence. AI‐2 production often varies according to growth phase, media conditions, and the presence of specific factors.
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Convergence of hormones and autoinducers at the host/pathogen interface
Analytical and Bioanalytical Chemistry, 2006Most living organisms possess sophisticated cell-signaling networks in which lipid-based signals modulate biological effects such as cell differentiation, reproduction and immune responses. Acyl homoserine lactone (AHL) autoinducers are fatty acid-based signaling molecules synthesized by several Gram-negative bacteria that are used to coordinate gene ...
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Functionality of Autoinducer Systems in Complex Environments
2014Cell-to-cell signalling via small diffusible molecules, usually termed quorum sensing (QS), represents a common behaviour in bacteria. This signalling regulates life style switches in many, if not most symbiotic microbial species either beneficial or pathogenic for their eukaryotic hosts, but is also involved in controlling environmental processes such
B. A. Hense, C. Kuttler, J. Müller
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Wei sheng wu xue bao = Acta microbiologica Sinica, 2009
The plasmid pJZ290 containing mariner transposon was used to mutagenize Sinorhizobium meliloti and 3000 transposon insertion mutants were subsequently screened for autoinducer-deficient (AI-deficient) mutants. One AI-deficient mutant YW1 was obtained by quantitative activity assay and qualitative TLC detection.
Yang, Wang +4 more
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The plasmid pJZ290 containing mariner transposon was used to mutagenize Sinorhizobium meliloti and 3000 transposon insertion mutants were subsequently screened for autoinducer-deficient (AI-deficient) mutants. One AI-deficient mutant YW1 was obtained by quantitative activity assay and qualitative TLC detection.
Yang, Wang +4 more
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Wei sheng wu xue bao = Acta microbiologica Sinica, 2009
Although the autoinducers of Mesorhizobium loti could not be detected under the conditions of experimentally pure culture, and even adding some root exact of Lotus japonicus into the medium in which M. loti grew to detect the acyl-homoserine lactone (AHL) production, no positive result has been available.
Meng-hua, Yang +2 more
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Although the autoinducers of Mesorhizobium loti could not be detected under the conditions of experimentally pure culture, and even adding some root exact of Lotus japonicus into the medium in which M. loti grew to detect the acyl-homoserine lactone (AHL) production, no positive result has been available.
Meng-hua, Yang +2 more
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