一定强度UVC辐射对小麦活性氧组分及抗氧化酶的影响  

The Effect of UVC Radiation on Wheat Active Oxygen Species and Antioxidant Enzyme

作　　者：卜婷[1,2] 刘灵霞[1,2] 肖朝霞[1,2] BU Ting;LIU Ling-xia;XIAO Zhao-xia(College of life science and technology, Longdong University, Qingyang 745000, Gansu, Gansu,China;Provincial Key University Laboratory for Protection and Utilization of Longdong Bio- resources, Qingyang 745000, Gansu,China)

机构地区：[1]陇东学院生命科学与技术学院,甘肃庆阳745000 [2]甘肃省高校陇东生物资源保护与利用省级重点实验室,甘肃庆阳745000

出　　处：《红河学院学报》2017年第2期122-125,共4页Journal of Honghe University

基　　金：国家自然科学基金地区基金(31560139);陇东学院青年科技创新项目(XYLK1304)

摘　　要：目的:研究一定强度UVC辐射对小麦活性氧组分及抗氧化酶的影响,为庆丰1号小麦在庆阳当地的种植提供一定指导。方法:UVC照射小麦幼苗5h/d后,测定超氧阴离子(O_2~)产生速率、过氧化氢(H_2O_2)含量,并测定超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性。结果:UVC处理组O_2~-离子产生速率及H_2O_2的浓度降低,SOD活性及POD活性降低,CAT活性有所上升。结论:小麦幼苗对一定强度UVC辐射能够做出应答,并表现出一定的适应性。objective:Study the influence of a certain intensity of UVC radiation on wheat reactive oxygen species and antioxidantenzyme,to guide the plantment of wheat qingfeng.1in Qingyang area.Methods:After exposing to UVC for5h/d,super-oxide anionfree radicals()generation rate,content of hydrogen peroxide(H2O2),superoxide dismutase(SOD)activity,catalase(CAT)activity,peroxidase(POD)activity,of wheat seedling were tested.Results:generation rate and the concentration of H2O2reduced,activity ofSOD and POD decreased,and CAT activity activity had a little promotion when wheat seedling were treated with UVC.Conclusion:wheat seedling could response to UVC radiation,and shows some adaption.

关 键 词：小麦 UVC H2O2 SOD POD CAT 

分 类 号：S512[农业科学—作物学]