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Effect of Rare Earth La and Its Complex La(POA)_3 on Mung Bean Seeding under Cd Stress

Song Shu-qiao

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Abstract

Ecophysiological effect of La and its complex La(POA)3(HPOA=phonoxyactive acid) on Mung bean seedling under Cd stress was studied through hydroponic experiment.Result showed that rare earth and its complex had obvious detoxication to cadmium,and when treated with single Cd2+ of 10mg/L from 4 to 8 days,the activity of NR,CAT and POD decreased while the content of praline and MDA increased.Low concentrations of 5～30mg/L of La3+ and La(POA)3 can greatly enhance the activity of antioxidase(CAT,POD),and the accumulation of MDA was reduced in comparison with single Cd2+ treatment.The higher the concentration of La3+ and La(POA)3,the worse the relieved action.With the increase of action time,catabatic operation of La(POA)3 was better than La.Optimum dose of La3+ and La(POA)3 to Cd in Mung Bean was ranged from 5～30mg/L.

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Ecophysiological effect of La and its complex La(POA)3(HPOA=phonoxyactive acid) on Mung bean seedling under Cd stress was studied through hydroponic experiment.Result showed that rare earth and its complex had obvious detoxication to cadmium,and when treated with single Cd2+ of 10mg/L from 4 to 8 days,the activity of NR,CAT and POD decreased while the content of praline and MDA increased.Low concentrations of 5～30mg/L of La3+ and La(POA)3 can greatly enhance the activity of antioxidase(CAT,POD),and the accumulation of MDA was reduced in comparison with single Cd2+ treatment.The higher the concentration of La3+ and La(POA)3,the worse the relieved action.With the increase of action time,catabatic operation of La(POA)3 was better than La.Optimum dose of La3+ and La(POA)3 to Cd in Mung Bean was ranged from 5～30mg/L.

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Available abstract

Ecophysiological effect of La and its complex La(POA)3(HPOA=phonoxyactive acid) on Mung bean seedling under Cd stress was studied through hydroponic experiment.Result showed that rare earth and its complex had obvious detoxication to cadmium,and when treated with single Cd2+ of 10mg/L from 4 to 8 days,the activity of NR,CAT and POD decreased while the content of praline and MDA increased.Low concentrations of 5～30mg/L of La3+ and La(POA)3 can greatly enhance the activity of antioxidase(CAT,POD),and the accumulation of MDA was reduced in comparison with single Cd2+ treatment.The higher the concentration of La3+ and La(POA)3,the worse the relieved action.With the increase of action time,catabatic operation of La(POA)3 was better than La.Optimum dose of La3+ and La(POA)3 to Cd in Mung Bean was ranged from 5～30mg/L.

Key concepts: Seedling, Point of delivery, Cadmium, Detoxication, Chemistry, Horticulture, Mung bean, Rare earth

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