CAJ | 학술논문

由于臭氧层的变薄，导致到达地球表面的UV-B辐射增强，所以研究植物对UV-B辐射响应的生理生化机制具有重要的意义。通过对垦玉7幼苗进行短暂UV-B辐射处理后不同时间玉米幼苗叶片生理生化指标的分析发现：短暂UV-B辐射对POD和SOD氧化酶活性的影响不显著，叶绿素a、Fv／Fm值、脯氨酸和可溶性蛋白在处理后不同时间受UV-B辐射影响显著，结果表明光合作用和蛋白质代谢参与玉米对短暂UV-B辐射的应答，抗氧化酶系统受到UV-B辐射影响较小。
유우취양층적변박，도치도체지구표면적UV-B복사증강，소이연구식물대UV-B복사향응적생리생화궤제구유중요적의의。통과대은옥7유묘진행단잠UV-B복사처리후불동시간옥미유묘협편생리생화지표적분석발현：단잠UV-B복사대POD화SOD양화매활성적영향불현저，협록소a、Fv／Fm치、포안산화가용성단백재처리후불동시간수UV-B복사영향현저，결과표명광합작용화단백질대사삼여옥미대단잠UV-B복사적응답，항양화매계통수도UV-B복사영향교소。
UV-B radiation reaching at the earth surface enhanced for attenuation of the ozone layer,so investigating the effect of UV-B on physiological and biochemical in the terrestrial plant would be significant. The physiological and biochemical indexes of ＂kenyu 7＂ seedlings after transient UV-B radiation treatment were analyzed. The results showed that the change of POD and SOD oxidases activity between transient UV-B radiation and controls were not significant,however,the change of the others were notable, including the content of chlorophyll a, Fv / Fm value, proline and soluble protein. We could conclude that the physiology processes of photosynthesis and protein metabolism had played an important role in maize plant response to transient UV-B radiation which affected less on antioxidant enzyme system.