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《Journal of Nuclear Agricultural Sciences》 2009-02
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EFFECTS OF RARE EARTH ELEMENTS ADDING ON ANTIOXIDANT ENZYMES OF WHEAT UNDER ENHANCED ULTRAVIOLET-B RADIATION

ZHANG Mei-ping 1,2 JIANG Yu-zhen1 YU Guang-hui1 YUAN Zhong-yuan1 CHEN Guo-xiang1(1.Life Sciences College,Nanjing Normal University/Key Laboratory of Biodiversity and Biotechnology of Jiangsu Province,Nanjing Jiangsu 210097;2.College of life sciences,Shanxi Normal University,Shanxi,Linfen 041004)  
This effects of rare earth elements adding on the antioxidant enzymes of wheat under enhanced Ultraviolet-B radiation(UV-B)was studied in pot experiments.The results showed that enhanced UV-B significantly increased the content of MDA and activities of CAT and POD(p0.05),but no obvious increasing of SOD activity,except the activity peak moved afterwards.Spraying earth elements on the wheat could inhibit the increasing of MDA content and POD activity induced by the UV-B,meanwhile,the activities of SOD and CAT increased,which means the capability of active oxygen removing improved and consequently alleviated the damage of enhanced UV-B.Among the three concentrations of 0.3%,0.1% and 0.075% applied the wheat,0.075% earth elements adding induced the highest antioxide capability.A suitable amount of rare earth elements could increase antioxidant enzymes of the wheat to decrease UV-B damage.
【Fund】: 国家自然基金(30771299)
【CateGory Index】: S512.1
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