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.
|Titolo:||Continuum description of the cytoskeleton: ring formation in the cell cortex|
|Autori interni:||COSENTINO LAGOMARSINO, MARCO (Secondo)|
|Parole Chiave:||biochemistry ; botany ; cellular biophysics ; molecular biophysics ; proteins ; stability ; zoology|
|Data di pubblicazione:||2005|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.95.258103|
|Appare nelle tipologie:||01 - Articolo su periodico|