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Modeling a bacterial ecosystem through chemotaxis simulation of a single cell

Ouannes, Nesrine and Djedi, Noureddine and Duthen, Yves and Luga, Hervé Modeling a bacterial ecosystem through chemotaxis simulation of a single cell. (2014) Artificial Life and Robotics, 19 (4). 382-387. ISSN 1433-5298

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Official URL: http://dx.doi.org/10.1007/s10015-014-0187-4

Abstract

We present in this paper an artificial life ecosystem in which bacteria are evolved to perform chemotaxis. In this system, surviving bacteria have to overcome the problems of detecting resources (or sensing the environment), modulating their motion to generate a foraging behavior, and communicating with their kin to produce more sophisticated behaviors. A cell’s chemotactic pathway is modulated by a hybrid approach that uses an algebraic model for the receptor clusters activity, an ordinary differential equation for the adaptation dynamics, and a metabolic model that converts nutrients into biomass. The results show some analysis of the motion obtained from some bacteria and their effects on the evolved population behavior. The evolutionary process improves the bacteria’s ability to react to their environment, enhancing their growth and allowing them to better survive. As future work, we propose to investigate the effect of emergent bacterial communication as new species arise, and to explore the dynamics of colonies.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://link.springer.com The original PDF of the article can be found at : http://link.springer.com/article/10.1007%2Fs10015-014-0187-4
HAL Id:hal-01290846
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université Mohamed Khider de Biskra (ALGERIA)
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Deposited By: IRIT IRIT
Deposited On:07 Mar 2016 09:33

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