MDA accumulation and antioxidation capacity of two Elsholtzia splendens populations under copper stress

Abstract

Abstract: Elsholtzia splendens is the most widely distributed copper-tolerant plant along the middle and lower streams of Yangtze River.Two populations of E.splendens,one from Chimashan mining area and the other from a normal soil of Hongan,all in Hubei Province,were chosen to investigate their MDA accumulation and antioxidation capacity.The results showed that E.splendens from normal soil accumulated more MDA than that from mining area,which indicated the serious peroxide harm to the plant.The concentrations of AsA,GSH and T-AOC were much higher in the plant from mining area than that from normal soil,suggesting that E.splendens from mining area had been evolved to copper-tolerant ecotype,and low molecular antioxidant played an important role in tolerance of the plant.

CLC Number:

X173

XIE Mingji, KE Wenshan, WANG Wanxian, XIONG Zhiting, WU Mingyu, CHEN Jianjun. MDA accumulation and antioxidation capacity of two Elsholtzia splendens populations under copper stress[J]. cje, 2005, (8): 935-938.

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