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On the aperiodic locomotor behavior of Halobacterium salinarium under periodic light stimuli

On the aperiodic locomotor behavior of <i>Halobacterium salinarium</i> under periodic light stimuli

Authors: Casagrandi R, Rinaldi S

Publication Year: 2002

Reference: Journal of Theoretical Biology, 214(4):647-656 (21 February 2002)

Abstract

Two long time series of swimming intervals of a bacterium inverting its motion under periodic light pulses are analysed. The associated next-period plots reveal, through their filiform structure, that the underlying dynamics are low-dimensional. Using recently described properties of such dynamics, a simple second-order black-box model for the swimming intervals is derived and validated. The model reinforces the conjecture that this bacterium is endowed with an oscillator controlling the switching of the flagellar motor.