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Simulation of variation potential in higher plant cells
Vladimir Sukhov1, Elena Akinchits, Lyubov Katicheva
1Department of Biophysics, State University of Nizhni Novgorod, Nizhny Novgorod, Russia. vssuh@mail.ru
The Journal of Membrane Biology
|February 19, 2013
Summary
A new mathematical model simulates plant variation potential (VP), an electrical signal. The model supports the roles of wound substance diffusion and calcium influx in VP generation and propagation.
Area of Science:
- Plant electrophysiology
- Mathematical modeling of biological systems
Background:
- Variation potential (VP) is a unique plant electrical signal with unclear generation and propagation mechanisms.
- Understanding VP requires experimental and theoretical analysis, including simulations.
Purpose of the Study:
- To develop and validate a mathematical model for plant variation potential (VP) generation and propagation.
- To theoretically investigate the roles of wound substance diffusion and calcium influx in VP development.
Main Methods:
- Developed a mathematical model for VP based on plant cell electrophysiology, including ion transport and regulation.
- Incorporated wound substance diffusion and ligand-gated calcium channels into the model.
- Simulated VP characteristics (amplitude, velocity, shape) and response to inhibitors.
Main Results:
- The model successfully simulates the dependence of VP characteristics on distance from the wounding site.
- The model accurately describes the effects of metabolic inhibitors, chelators, and blockers on VP generation.
- The model provides theoretical support for the involvement of wound substance diffusion and Ca(2+) influx.
Conclusions:
- The developed mathematical model is a favorable tool for simulating VP in plants.
- The study theoretically confirms the significant roles of wound substance diffusion and calcium influx in VP development.
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