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发布时间:2023-11-17 05:28:22
维普资讯http://www.cqvip.com中央民族大学学报(自然科学版) 第16卷 Effects of Salt Stress on Antioxidant Enzyme in The//un#e//a halophilla and Arabidopsis thaliana ZHOU Yi.inn ,LIU Yu ,ZHAO Dan—hua ,CHENG Wen.jing ,ZHAO Zhu ,ZHANG Gen. (1.College of啦andEnvironmental Science,Central UniversityforNationalities,B ̄iing 100081,China; 2 Cot ofWeScience,BeijingNormal Unievrsity,Being 100875,Chia)n Abstract:The responses of antioxidant enzyme,i.e.superoxide dismutase(SOD),peroxides(POD), and catlaase(CAT)in TheUungiella halophiUa(6 weeks)and Arabidopsis thaliana(3 weeks)to 24h salt.stress provided by different levels of sodium chloride were analyzed.In A.thaliana,the activities of SOD gradually increased and the activities of CAT gradually decreased with the increase of salt concentration.The increase of activities of POD Was higher than that of SOD.Both of them were the highest level under 200mM NaC1.In T.halophilla,the levels of activities of SOD,POD and CAT in root were higher than that in leaves.With the increase of salt stress.the activities of SOD in root and leaves were unchanged.The activities of POD decreased in leaves and increased in root.the activities of CAT increased in leaves and increased at fi