Volkov Alexander G, Lang Ryan D, Volkova-Gugeshashvili Maia I
Department of Chemistry and Biochemistry, Oakwood College, 7000 Adventist Blvd., Huntsville, AL 35896, USA.
Bioelectrochemistry. 2007 Nov;71(2):192-7. doi: 10.1016/j.bioelechem.2007.04.006. Epub 2007 May 3.
Action potentials in higher plants are theorized as the information carriers in intercellular and intracellular communication in the presence of environmental stressors. Among the most common stressors is heat shock. Under stressful conditions, the response reactions of plant tissues and organs can be local or transmitted over long distances. In this article, the speeds of propagation of thermally induced action potentials in green plants are discussed, and their speeds were found to be comparable to those occurring in various mammalian species. These rapid action potentials in green plants were recorded in real time using modern data acquisition techniques. According to our measurements, a single application of localized heat stress induces fast action potentials in Aloe vera (67 m/s). Electrical signals propagated along all leaves of the A. vera plants were studied. Possible pathways for electrical signal propagation in vascular plants are also discussed.
在存在环境应激源的情况下，高等植物中的动作电位被理论化为细胞间和细胞内通讯中的信息载体。最常见的应激源之一是热休克。在压力条件下，植物组织和器官的反应可以是局部的，也可以远距离传播。在本文中，讨论了绿色植物中热诱导动作电位的传播速度，发现其速度与各种哺乳动物物种中的速度相当。利用现代数据采集技术实时记录了绿色植物中的这些快速动作电位。根据我们的测量，单次局部热应激会在芦荟中诱导快速动作电位（67米/秒）。研究了沿芦荟植物所有叶片传播的电信号。还讨论了维管植物中电信号传播的可能途径。
