Motivated by the formation of ringlike filament structures in the cortex of plant and animal cells, we study the dynamics of a two-dimensional layer of cytoskeletal filaments and motor proteins near a surface by a general continuum theory. As a result of active processes, dynamic patterns of filament orientation and density emerge via instabilities. We show that self-organization phenomena can lead to the formation of stationary and oscillating rings. We present state diagrams that reveal a rich scenario of asymptotic behaviors and discuss the role of boundary conditions.

Continuum description of the cytoskeleton: ring formation in the cell cortex / A. Zumdieck, M. Cosentino Lagomarsino, C. Tanase, K. Kruse, B. Mulder, M. Dogterom, F. Julicher. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 95:25(2005), pp. 258103.258103-1-258103.258103-4.

Continuum description of the cytoskeleton: ring formation in the cell cortex

M. Cosentino Lagomarsino
Secondo
;
2005

Abstract

Motivated by the formation of ringlike filament structures in the cortex of plant and animal cells, we study the dynamics of a two-dimensional layer of cytoskeletal filaments and motor proteins near a surface by a general continuum theory. As a result of active processes, dynamic patterns of filament orientation and density emerge via instabilities. We show that self-organization phenomena can lead to the formation of stationary and oscillating rings. We present state diagrams that reveal a rich scenario of asymptotic behaviors and discuss the role of boundary conditions.
biochemistry ; botany ; cellular biophysics ; molecular biophysics ; proteins ; stability ; zoology
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/30927
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