| He-Ne激光和增强UV-B辐射对小麦幼苗氮代谢的影响 |
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| 引用本文： | 马晓丽,冀瑞萍.He-Ne激光和增强UV-B辐射对小麦幼苗氮代谢的影响[J].晋中学院学报,2013(3):56-61. |
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| 作者姓名： | 马晓丽 冀瑞萍 |
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| 作者单位： | 晋中学院生物科学与技术学院,山西晋中030600 |
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| 基金项目： | 山西省高等学校科技研究开发项目“增强UV-B辐射对小麦幼苗细胞骨架的影响”（20101129） |
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| 摘 要： | 为研究He-Ne激光对增强UV-B辐射后损伤的修复作用,采用5 mW.mm-2He-Ne激光辐照、10.08 kJ.m2.d1的UV-B辐射及二者组合对舜麦1718号小麦幼苗进行处理,测定各处理组小麦幼苗硝酸还原酶活性、一氧化氮合成酶含量和膜透性的变化.分析结果显示:He-Ne激光辐照可使UV-B辐射后小麦幼苗硝酸还原酶活力升高1.2倍,显著改善了增强UV-B辐射后硝酸还原酶活性降低的程度;而一氧化氮合成酶(NOS)含量B组和BL组分别高于CK组45.1%和17.8%,现促进作用.
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| 关 键 词： | 小麦 He-Ne激光 UV-B 一氧化氮合成酶 硝酸还原酶 |
Effects on Nitrgen Metabolism of Wheat Seedlings Exposed to Enhanced Ultraviolet-B Radiation and Irradiated By He-Ne Laser |
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| MA Xiao-li,JI Rui-ping.Effects on Nitrgen Metabolism of Wheat Seedlings Exposed to Enhanced Ultraviolet-B Radiation and Irradiated By He-Ne Laser[J].Journal of Jinzhong University,2013(3):56-61. |
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| Authors: | MA Xiao-li JI Rui-ping |
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| Institution: | MA Xiao-li Jl Rui-ping (School of Biological Science and Technology,Jinzhong University,Jinzhong Shanxi 030600,China) |
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| Abstract: | To research injury repair of He-Ne laser irradiation after enhanced UV-B radiation, Shun wheat 1718 wheat seedlings were exposed to 10.08 kJ·m^-2 UV-B radiation, and then were irradiated by He-Ne laser with 10mW·mm^-2 Power density to cheek different changes of wheat seedling nitrate reduetase activity, nitric oxide synthase and membrane permeability. The results show that He-Ne laser irradiation can make the content of NOS increase by 45.1% and nitrate teduetase activity increase by 120 %, remarkably improving the lower degree of nitrate reduetase （NR） aetivity. It suggests that He-Ne radiation could partly repair the UV-B radiated damage to the nitrogen mestabo!ism of wheat seedling. |
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| Keywords: | wheat He-Ne laser UV-B Nitrate Reductase Nitrio oxide synthases |
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