| 铜胁迫对小麦幼苗过氧化氢清除酶的影响 |
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| 引用本文： | 张敏敏,赵瑛,张运晖.铜胁迫对小麦幼苗过氧化氢清除酶的影响[J].甘肃农业科技,2014(7):42-44. |
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| 作者姓名： | 张敏敏 赵瑛 张运晖 |
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| 作者单位： | 甘肃省农业科学院生物技术研究所,甘肃兰州730070 |
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| 摘 要： | 以小麦品种宁春4号为指示材料。研究了浓度为100、300、500μm/L 的CuCl2对小麦幼苗抗氧化酶（CAT、POD和APX）活性的影响。结果表明，随着Cu2＋胁迫浓度的增加，小麦幼苗叶片过氧化氢酶（CAT）和过氧化物酶（POD）活性显著上升，且有相似的变化趋势，在cu2＋胁迫浓度为300μmol／L时活性最高。抗坏血酸过氧化物酶（APx）活性在100μmol/L浓度下降低，由300μmol／L增加到5001μmol/L时先升高后降低。
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| 关 键 词： | 小麦幼苗 铜胁迫 过氧化氢酶 过氧化物酶 抗坏血酸过氧化物酶 |
| 收稿时间： | 2014/4/18 0:00:00 |
Effects of Copper Stress on Hydrogen Peroxide Scavebgubg Enzymes of Wheat Seedlings |
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| ZHANG Min-min,ZHAO Ying,ZHANG Yun-hui.Effects of Copper Stress on Hydrogen Peroxide Scavebgubg Enzymes of Wheat Seedlings[J].Gansu Agricultural Science and Technology,2014(7):42-44. |
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| Authors: | ZHANG Min-min ZHAO Ying ZHANG Yun-hui |
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| Institution: | (Institute of Biotechnology Research, Gansu Academy of Agricultural Sciences, Lanzhou Gansu 730070, China) |
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| Abstract: | The Ningchun 4 wheat was used as a material in this test, which studies the influence of the activity on wheat seedling antioxidant enzymes （CAT, POD and APX）, under the different concentration （100 pLmol/L, 300 μmol/L, 500 μmol/L, ） CuC12. The results showed that the increase of Cu stress concentration, the activity of wheat seedling leaves catalase （CAT） and peroxidase （POD） rises significantly, and have a similar changing trend. When the concentration of enzymatic is 300 μmol/L, enzymatic is the most active. But when ascorbic acid peroxidase （APX） is 100, μmol/L the activity of enzyme is living lower. And the concentration of enzymatic was 1 300 μmol/L and 500 μmol/L, it increases firstly, and then decreases. |
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| Keywords: | Wheat seedlings Cu stress Catalase Peroxidase Ascorbic acid peroxidase |
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