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Spatial heterogeneity of autoinducer regulation systems.
Sensors 12, 4156-4171 (2012)
Autoinducer signals enable coordinated behaviour of bacterial populations, a phenomenon originally described as quorum sensing. Autoinducer systems are often controlled by environmental substances as nutrients or secondary metabolites (signals from neighbouring organisms. In cell aggregates and biofilms gradients of signals and environmental substances emerge. Mathematical modelling is used to analyse the functioning of the system. We find that the autoinducer regulation network generates spatially heterogeneous behaviour, up to a kind of multicellularity-like division of work, especially under nutrient-controlled conditions. A hybrid push/pull concept is proposed to explain the ecological function. The analysis allows to explain hitherto seemingly contradicting experimental findings.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
autoinducer regulation network; spatial heterogeneity; division of work; hybrid push/pull control; quorum sensing
ISSN (print) / ISBN
1424-8220
e-ISSN
1424-8220
Journal
Sensors
Quellenangaben
Volume: 12,
Issue: 4,
Pages: 4156-4171
Publisher
MDPI
Non-patent literature
Publications
Reviewing status
Peer reviewed