The Mathematical Institute, University of Oxford, Eprints Archive

Feedback control architecture of the R. sphaeroides
chemotaxis network

Hamadeh, A. and August, E. and Roberts, M and Maini, P K and Armitage, J P and Ingalls, B and Papachristodoulou, A. (2011) Feedback control architecture of the R. sphaeroides
chemotaxis network.
In: 50th IEEE Conference on Decision and Control and European Control Conference, 12th-15th December 2011, Orlando Florida.

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Abstract

This paper investigates the chemotaxis behavior of the bacterium R. sphaeroides. We review the results of a recent study comparing different possible mathematical models of this bacterium's chemotaxis decision mechanisms. It was found that only one of the aforesaid models could explain the experimental chemotactic response data. From a control theoretic perspective, we show that, compared to the other models posed, this model exhibits better and more robust chemotactic performance. This decision mechanism parallels a feedback architecture that has been used extensively to improve performance in engineered systems. We suggest that this mechanism may play a role in maintaining the chemotactic performance of this and potentially other bacteria.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:INSPEC: CONTROLLED INDEXING biocontrol feedback microorganisms INSPEC: NON CONTROLLED INDEXING R sphaeroides bacterium R sphaeroides chemotaxis network bacteria chemotaxis decision mechanism feedback control architecture
Subjects:A - C > Biology and other natural sciences
Research Groups:Centre for Mathematical Biology
ID Code:1837
Deposited By: Philip Maini
Deposited On:02 May 2014 07:49
Last Modified:29 May 2015 19:31

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