Chemotaxis allows bacteria to respond and adapt to the environment, by tuning tumbling and running motions due to the rotation of their flagella. We defined a model of chemotaxis and performed stochastic simulations of the dynamics of a pivotal protein, CheYp. These results allowed to compare the mean time of running, tumbling and adaptation with respect to different numbers of flagella. Our results suggest that the interplay between stochastic fluctuations of CheYp and the synchronization of flagella might represent a relevant component for the proper functionality of chemotaxis
Besozzi, D., Cazzaniga, P., Mauri, G., Pescini, D. (2010). Effects of stochastic fluctuations on the coordination of flagella in bacterial chemotaxis. In Proceedings 4th q-bio Conf. on Cellular Information Processing.
Effects of stochastic fluctuations on the coordination of flagella in bacterial chemotaxis
BESOZZI, DANIELA;MAURI, GIANCARLO;PESCINI, DARIO
2010
Abstract
Chemotaxis allows bacteria to respond and adapt to the environment, by tuning tumbling and running motions due to the rotation of their flagella. We defined a model of chemotaxis and performed stochastic simulations of the dynamics of a pivotal protein, CheYp. These results allowed to compare the mean time of running, tumbling and adaptation with respect to different numbers of flagella. Our results suggest that the interplay between stochastic fluctuations of CheYp and the synchronization of flagella might represent a relevant component for the proper functionality of chemotaxis
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