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《Journal of Northeast Agricultural University》 2010-11
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Effect of Levofloxacin hydrochloride stress on growth and physiological characteristics of wheat seedlings

ZHU Jian1,2,LONG Jian2,FAN Feifei2(1.College of Resources and Environment Engineering,Guizhou University,Guiyang 550003,China;2.Gui-zhou Province Laboratory for Mountainous Environment,Guiyang 550001,China)  
Effect of Levofloxacin hydrochloride(OFLX) treatment on the content of chlorophyll and soluble protein,antioxidant enzyme systems in wheat seedling leaves and the root activity was investigated by simulating the natural condition under diversified concentrations of OFLX.Results showed that OFLX had an inhibitory effect on chlorophyll content of wheat leaves.With increasing concentration of OFLX,the activities of superoxide dismutase(SOD) and peroxidase(POD) of wheat leaves showed the first increasing and then decreasing trend,which were higher than those of the control.At the same time,the activity of catalase(CAT) was increasing.The soluble protein content of leaves increased under OFLX stress,which played an important role in resisting stress.The root activity declined after treatment with OFLX concentration below 500 mg.L-1,which had an inhibition effect on the growth of wheat seedlings.
【Fund】: 贵州省科学技术基金(LKS-2009-20);; 贵州茅台科技联合基金
【CateGory Index】: S512.1
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