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《Journal of Henan Agricultural Sciences》 2007-01
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Response of Scavenging Reactive Oxygen Species of Wheat Seedling Leaves to Drought Stress

TAN Xiao-rong,WU Xing-quan,DAI Yuan,DU Shu-wen,KONG Juan(Biotechnology Department,Henan University of Technology,Zhengzhou 450052,China)  
Dynamic changes of scavenging reactive oxygen species(ROS:·OH,H_2O_2,O~-·_2)of wheat seedling leaves were studied during 2 different kinds of water stress(discontinuous and continuous drought stress).Results indicated that the wheat seedlings under normal growth condition were able to scavenge ROS to some extent.Both discontinuous and continuous drought stress increased scavenging capacities for·OH and O~-·_2 and decreased scavenging capacities for H_2O_2 of wheat seedlings.There was different response between the roots and the leaves to drought stress.Continuous drought-stress had greater effect than discontinuous one did.
【Fund】: 河南省教育厅自然科学计划项目(200510463015 2006210002)
【CateGory Index】: S512.1
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