高压电晕电场产生的离子风在紫花苜蓿种子中的穿透深度  

Penetration Depth of Ion Wind Produced by Corona Discharge Field in Medicago Sativa Seeds

作　　者：徐凯迪 陈浩[1] 宋智青[1] 丁昌江[1] 石磊[2] XU Kai-di;CHEN Hao;SONG Zhi-qing;DING Chang-jiang;SHI Lei(College of Science,Inner Mongolia University of Technology,Hohhot 010051,China;College of Computer and Information,Inner Mongolia Medical University,Hohhot 010050,China)

机构地区：[1]内蒙古工业大学理学院,内蒙古呼和浩特010051 [2]内蒙古医科大学计算机学院,内蒙古呼和浩特010050

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2020年第6期541-545,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51767020);内蒙古自然科学基金资助项目(2019MS06025,2020MS01016)。

摘　　要：高压电晕电场是新型物理诱变技术,目前高压电晕电场的诱变机理仍不很清楚,高压电晕电场产生的离子风在生物体中的作用深度存在较大争议。考虑生物媒质为匀相多组元系统,计算了高压电晕电场产生的N+、N2+和O-在紫花苜蓿种子中以及N+在纤维素中的穿透深度。根据计算结果,离子风不会对紫花苜蓿种胚产生直接作用。同时高压电晕电场的干燥效应和离子风对种皮的机械作用,可使离子风的作用深度明显增加。Corona discharge field as a new physical mutagen has been widely used in mutagenesis although the mechanism of it is still unclear and there is a great controversy about the penetration depth of ion wind produced by the field in organisms.In this paper,the penetration depth of N+,N2+and O-produced by corona discharge field in seeds of Medicago sativa and N+in cellulose were calculated based on the assumption of biological tissue as homogeneous multi-component system.The result revealed that the ion wind had not the direct action to the embryo of the seeds of Medicago sativa.Meanwhile,it also pointed out that the drying effect of corona discharge field and its etching effect on seed coat surface might greatly increase the penetration depth of ions.

关 键 词：高压电晕电场 离子风 穿透深度 种子 

分 类 号：Q689[生物学—生物物理学]