A mathematical model of action potential in cells of vascular plants.
J Membr Biol
; 232(1-3): 59-67, 2009 Dec.
Article
em En
| MEDLINE
| ID: mdl-19921324
ABSTRACT
A mathematical model of action potential (AP) in vascular plants cells has been worked out. The model takes into account actions of plasmalemma ion transport systems (K(+), Cl(-) and Ca(2+) channels; H(+)- and Ca(2+)-ATPases; 2H(+)/Cl(-) symporter; and H(+)/K(+) antiporter), changes of ion concentrations in the cell and in the extracellular space, cytoplasmic and apoplastic buffer capacities and the temperature dependence of active transport systems. The model of AP simulates a stationary level of the membrane potential and ion concentrations, generation of AP induced by electrical stimulation and gradual cooling and the impact of external Ca(2+) for AP development. The model supports a hypothesis about participation of H(+)-ATPase in AP generation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Potenciais de Ação
/
Fenômenos Fisiológicos Vegetais
Idioma:
En
Revista:
J Membr Biol
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Federação Russa