Models of intracellular mechanisms of plant bioelectrical potentials caused by combined stimulation

  • D. V. Chernetchenko Oles Honchar Dnipropetrovsk National University
  • M. P. Motsnyj Oles Honchar Dnipropetrovsk National University
  • N. P. Botsva Oles Honchar Dnipropetrovsk National University
  • О. V. Elina Oles Honchar Dnipropetrovsk National University
Keywords: bioelectrical potentials’ recording, mathematical cell model, leaves’ biopotentials, combined stimulation of plants, heat and cold stimuli


This paper deals with bioelectrical potentials of the plants recorded during different types of stimuli and combined stimulus as well. All registrations were observed on the leaves of the corn. We used different stimuli, such as cold, heat, photo- and electrical stimulation, and certain combination of this stimuli. Hardware and software system for automated recording of bioelectrical potentials has been successfully used in this work. We proposed the universal pattern of bioelectrical potentials’ recording which allowed to detect the response of the biological object to different stimuli and various combinations of these stimuli. This pattern can be used for the deeper understanding of biological mechanisms of electrical potentials’ generation in cells and discovering of processes of accommodation of whole organisms to these stimuli. Integrated system of recording and biometrical processing was used for analysis of corn leaves electrical responses to the thermal stimuli. The dynamics of these potentials was studied, with the quantitative analysis of the potential level stabilization.We calculated the ratio of amplitude of response potentials to the first response amplitude. Mathematical models of the plant cell were used for studying of intracellular mechanisms of biopotentials gereration. As a result of modeling, we revealed that electrical response of the cells was based on selectiveconductivity of cell membrane for Н+ and Ca2+ ions. Therefore, we showed the biophysical relation of plant potentials to underlying intracellular biophysical mechanisms during thermal and combined stimulation.


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