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为了获取显著的电场生物学效应,通过小波降噪和功率谱分析研究了玉米幼苗本征电位波动的基本特征。研究发现,玉米幼苗本征电位波动的功率谱主要分布在1Hz以内,重心频率为0.2Hz。采用电场强度为100kV/m、频率为0.2Hz的极低频脉冲电场处理萌发玉米种子,在萌发第5d时玉米种子的质量、芽长和根长分别比对照组增加17.55%、60.13%和28.50%。分析萌发种子超弱发光的变化时发现,在萌发第5d时,处理组玉米种子的自发发光和延迟发光积分强度分别比对照组增加了68.84%和33.93%,表明0.2Hz脉冲电场加速了玉米萌发过程中DNA合成反应和细胞代谢。脉冲电场与植物电位的耦合共振可能是极低频脉冲电场具有显著生物学效应的原因。
In order to obtain remarkable electric field biological effects, the basic characteristics of the eigenpotential fluctuations of maize seedlings were studied by wavelet denoising and power spectrum analysis. The study found that the power spectrum of maize seedling intrinsic potential fluctuations mainly distributed within 1Hz, the center of gravity frequency of 0.2Hz. The germinated maize seeds were treated with an electric field of 100 kV / m and a frequency of 0.2 Hz. The quality, shoot length and root length of maize seeds increased 17.55%, 60.13% and 28.50% . Analysis of the changes of germinating seeds with ultra-weak luminescence showed that the spontaneous luminescence and delayed luminescence integral intensities of the treated maize seeds increased by 68.84% and 33.93% respectively compared with the control group on the 5th day of germination, indicating that 0.2Hz pulsed electric field accelerated the germination of maize Process of DNA synthesis and cellular metabolism. The coupled resonance of pulsed electric field and plant potential may be the reason for the significant biological effect of the extremely low frequency pulsed electric field.