| Effect of Lanthanum Ion on Peroxidase in Plant |
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| 引用本文： | 姜慧君,王小锋,周青,黄晓华,陆天虹,公衍道. Effect of Lanthanum Ion on Peroxidase in Plant[J]. 中国稀土学报(英文版), 2002, 20(5): 547-552 |
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| 作者姓名： | 姜慧君 王小锋 周青 黄晓华 陆天虹 公衍道 |
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| 作者单位： | [1]ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun130022,China [2]DepartmentofChemistry,NanjingNormalUniversity,Nanjing210097,China [3]SchoolofBiotechnology,SourthernYangtzeUniversity,Wuxi2140063,China [4]DepartmentofChemistry,NanjingNormalUniversity,Nanjing210097,China／／SchoolofBiotechnology,SourthernYangtzeUniversity,Wuxi2140063,China [5]ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun130022,China／／DepartmentofChemistry,NanjingNormalUniversity,Nanjing210097,China [6]StateKeyLaboratoryofBiomembraneandMembraneBiotechnologyTsinghuaUniversity,Beijing100084,China |
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| 基金项目： | ProjectsupportedbyFoundationofStatePlanningCommission[GJX0 1 1 0 0 6 2 6 ]，NationalNaturalScienceFoundationofChina( 2 99730 1 5 )，HighandMewTechnologyCommitteeofJiangsu (BG2 0 0 1 0 45 )，andtheNaturalScienceFoundationofEduca tionCommitteeofJian |
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| 摘 要： | The interaction of MP-11 as a model of antioxidatase enzymes with La^3 was investigated. It was found that La^3 can increase in the non-planarity of heme and the content of α helix and β turn conformations of the MP-11 molecule. The change in the secondary structure of the MP-11 molecule can increase in the exposure extent of heme to the solution. Therefore, the electrochemical reaction of MP-11 is promoted and the eleetrocatalytic activity to the reduction of H2O2 is increased. The results are consistent with that for the interaction of peroxidases(POD),one of the antioxidatase enzymes, obtained in the living plant experiments at low concentration of La^3 .
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| 关 键 词： | 植物生长调节剂 过氧化物酶 稀土离子 MP-11 植物生理 电化学反应 |
Effect of Lanthanum Ion on Peroxidase in Plant |
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| Jiang Huijun,Wang Xiaofeng,Zhou Qing,Huang Xiaohua,Lu Tianhong,Gong Yandao. Effect of Lanthanum Ion on Peroxidase in Plant[J]. Journal of Rare Earths, 2002, 20(5): 547-552 |
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| Authors: | Jiang Huijun Wang Xiaofeng Zhou Qing Huang Xiaohua Lu Tianhong Gong Yandao |
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| Abstract: | The interaction of MP-11 as a model of antioxidatase enzymes with La3+ was investigated. It was found that La3+ can increase in the non-planarity of heme and the content of α helix and β turn conformations of the MP-11 molecule. The change in the secondary structure of the MP-11 molecule can increase in the exposure extent of heme to the solution. Therefore, the electrochemical reaction of MP-11 is promoted and the electrocatalytic activity to the reduction of H2O2 is increased. The results are consistent with that for the interaction of peroxidases(POD), one of the antioxidatase enzymes, obtained in the living plant experiments at low concentration of La3+. |
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| Keywords: | rare earths lanthamum ion microperoxidase 11 peroxidase interaction |
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