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Journal of Bacteriology, November 2006, p. 7661-7667, Vol. 188, No. 21
0021-9193/06/$08.00+0     doi:10.1128/JB.00911-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Temperature Dependence of MinD Oscillation in Escherichia coli: Running Hot and Fast ^,

Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia B3H 3J5, Canada

Received 23 June 2006/ Accepted 16 August 2006

We observed that the oscillation period of MinD within rod-like and filamentous cells of Escherichia coli varied by a factor of 4 in the temperature range from 20°C to 40°C. The detailed dependence was Arrhenius, with a slope similar to the overall temperature-dependent growth curve of E. coli. The detailed pattern of oscillation, including the characteristic wavelength in filamentous cells, remained independent of temperature. A quantitative model of MinDE oscillation exhibited similar behavior, with an activated temperature dependence of the MinE-stimulated MinD-ATPase rate.

Published ahead of print on 25 August 2006.

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