Department of Chemistry and Biochemistry, Oakwood University, Huntsville, AL 35896, USA.
Plant Cell Environ. 2010 May;33(5):816-27. doi: 10.1111/j.1365-3040.2009.02108.x. Epub 2010 Jan 28.
Biologically closed electrical circuits operate over large distances in biological tissues. The activation of such circuits can lead to various physiological and biophysical responses. Here, we analyse the biologically closed electrical circuits of the sensitive plant Mimosa pudica Linn. using electrostimulation of a petiole or pulvinus by the charged capacitor method, and evaluate the equivalent electrical scheme of electrical signal transduction inside the plant. The discharge of a 100 microF capacitor in the pulvinus resulted in the downward fall of the petiole in a few seconds, if the capacitor was charged beforehand by a 1.5 V power supply. Upon disconnection of the capacitor from Ag/AgCl electrodes, the petiole slowly relaxed to the initial position. The electrical properties of the M. pudica were investigated, and an equivalent electrical circuit was proposed that explains the experimental data.
生物闭合电路在生物组织中远距离运行。这种电路的激活会导致各种生理和生物物理反应。在这里，我们使用带电电容器法对敏感植物含羞草的叶柄或叶枕进行电刺激，分析其生物闭合电路，并评估植物内部电信号转导的等效电路。如果事先用 1.5 V 电源给叶枕中的 100 μF 电容器充电，那么在几秒钟内，电容器在叶枕中的放电会导致叶柄向下弯曲。如果将电容器从 Ag/AgCl 电极上断开，叶柄会慢慢恢复到初始位置。研究了含羞草的电学特性，并提出了一个等效电路来解释实验数据。
