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Recording extracellular signals in plants: A modeling and experimental study

文献类型： 外文期刊

作者： Zhao, Dong-Jie 1 ; Wang, Zhong-Yi 1 ; Li, Jun 2 ; Wen, Xing 1 ; Liu, An 1 ; Huang, Lan 1 ; Wang, Xiao-Dong 4 ; Hou, Rui-F 1 ;

作者机构： 1.China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China

2.China Agr Univ, Ctr Comp Network, Beijing 100083, Peoples R China

3.China Agr Univ, Key Lab Modern Precis Agr Syst Integrat Res, Minist Educ, Beijing 100083, Peoples R China

4.Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

关键词： Electrical signal in plants;Extracellular recording model;Modified Hodgkin-Huxley

期刊名称：MATHEMATICAL AND COMPUTER MODELLING （ 影响因子：1.366； 五年影响因子：1.602 ）

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收录情况： SCI

摘要： The purpose of this work was to determine the relationship between intracellular and extracellular potential in plant cells and clarify the characteristic of extracellular measurement. Importantly, we aimed to explain the interesting phenomenon that the results using extracellular recording were significantly different from those of many research groups. We proposed a model to describe the relationship between intracellular measurement and extracellular measurement. To verify the model, simulations and experiments were performed. In the experiments, intracellular and extracellular recordings were obtained from Vicia faba L. cells using a multi-channel electrophysiological recording system. The experimental results indicated that extracellular potential could be calculated using the model and the amplitude of observed signals, and for one cell this was dozens of microvolts, but complex for multi-cells. The spatiotemporal features of extracellular recording were also verified by the experimental results. The model revealed a quantity relationship with the intracellular and extracellular potential of plant cells, and the superposition characteristic was explained.

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