Senavirathna M D H J, Asaeda T
a Department of Environmental Science , Saitama University , Saitama , Japan.
Plant Signal Behav. 2018;13(6):e1486145. doi: 10.1080/15592324.2018.1486145. Epub 2018 Jun 26.
The dielectric effect enforced on charged ions and dipolar molecules by the oscillating electric field of microwaves may influence electric signaling in plants. In the present study, the exposure of Nicotiana benthamiana plants to continuous wave 2.45 GHz microwave radiation with 1.9 - 2.1 W m power density significantly reduced the amplitude of leaf burning-induced variation potential along the plant stem. The change in amplitude of the variation potential occurred mainly because of a significant reduction of the depolarization rate. This effect was not observed during the post-microwave exposure period. The unique characteristics observed in the variation potentials were also observed under microwave exposure, suggesting unaffected information delivery to distant locations or unaffected transport of specific chemicals generated by the injury.
微波振荡电场施加于带电离子和偶极分子上的介电效应可能会影响植物中的电信号传导。在本研究中，将本氏烟草植株暴露于功率密度为1.9 - 2.1 W/m的2.45 GHz连续波微波辐射下，显著降低了沿植株茎干由叶片灼烧引起的变异电位的幅度。变异电位幅度的变化主要是由于去极化速率的显著降低。在微波暴露后的时间段内未观察到这种效应。在变异电位中观察到的独特特征在微波暴露下也被观察到，这表明向远处位置传递信息未受影响，或者由损伤产生的特定化学物质的运输未受影响。
