Hydro-osmotic Instabilities in Active Membrane Tubes.
Phys Rev Lett
; 120(13): 138102, 2018 Mar 30.
Article
em En
| MEDLINE
| ID: mdl-29694218
ABSTRACT
We study a membrane tube with unidirectional ion pumps driving an osmotic pressure difference. A pressure-driven peristaltic instability is identified, qualitatively distinct from similar tension-driven Rayleigh-type instabilities on membrane tubes. We discuss how this instability could be related to the function and biogenesis of membrane bound organelles, in particular, the contractile vacuole complex. The unusually long natural wavelength of this instability is in agreement with that observed in cells.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vacúolos
/
Membrana Celular
/
Modelos Biológicos
/
Modelos Químicos
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article