Continuum description of the cytoskeleton: ring formation in the cell cortex.
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.
Zumdieck
Alexander
A
Max-Planck-Institut für Physik komplexer Systeme, Dresden, Germany.
Cosentino Lagomarsino
Marco
M
Tanase
Catalin
C
Kruse
Karsten
K
Mulder
Bela
B
Dogterom
Marileen
M
Jülicher
Frank
F
D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D003598:Cytoskeletal Proteins / Q000737:chemistry* / Q000502:physiology*; D003599:Cytoskeleton / Q000737:chemistry* / Q000502:physiology*; D008954:Models, Biological; D008956:Models, Chemical; D020409:Molecular Motor Proteins / Q000737:chemistry / Q000502:physiology*
D003598:Cytoskeletal Proteins; D020409:Molecular Motor Proteins