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Open Access Green as soon as Postprint is submitted to ZB.
A delay model for quorum sensing of Pseudomonas putida.
Biosystems 102, 148-156 (2010)
The bacterial strain Pseudomonas putida IsoF, isolated from a tomato rhizosphere, possesses a quorum sensing regulation system, which allows the bacteria to recognise aspects of their environment or to communicate with each other by the so-called autoinducer molecules. In an experimental study, the time series of the autoinducer production did not show the expected behaviour, as it was observed for other bacterial species by indirect measurements. The modelling approach introduced here allows an explanation of the behaviour, supporting the hypothesis of the existence of a further (not yet detected) enzyme, which degrades the autoinducer into an inactive form. Especially the properties of the considered delay differential system allow for the description of the time series. For example the appearance of a first small maximum in the initial phase can be explained by a delay differential equation.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Quorum sensing; Pseudomonas putida; Delay equations; Bifurcations
ISSN (print) / ISBN
0303-2647
e-ISSN
1872-8324
Quellenangaben
Volume: 102,
Issue: 2-3,
Pages: 148-156
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Institute of Ecological Chemistry (IOEC)
Research Unit Microbe-Plant Interactions (AMP)
Research Unit Microbe-Plant Interactions (AMP)