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《Shandong Agricultural Sciences》 2008-01
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Effects of Salt Stress on Membrane Lipid Peroxidation and Endogenous Protective Systems in the Leaf of Transgenic Tobacco with ZmPP2C2 and Wild Tobacco

XIAO Bei-lei1,2,LI De-quan1,LI De-quan1,HU Xiao-li1(1.State Key Laboratory of Crop Biology,College of Life Science,Shandong Agricultural University,Taian 271018,China; 2.Agronomy Department of Dezhou College,Dezhou 253023,China)  
The membrane lipid peroxidation and endogenous protective systems in the leaf of transgenic tobacco with ZmPP2C2 and wild tobacco were studied under salt stress.The results showed that at 150 mmol/L NaCl concentrateion,the relative electrical conductivity,the contents of MDA,soluble sugar and proline and POD activity increased with the extension of salt treatment.But the relative electrical unductivity and MDA content of transgenic tobacco were lower,while the accumulation of soluble sugar and proline and POD activity were higher than those of wild tobacco.The SOD activity of two tobacco types displayed rising first and then declining,but the decrease amplitude of transgenic tobacco was less than that of the wild tobacco.
【CateGory Index】: S572
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