| H2O2参与大豆根尖铝毒调节的研究 |
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| 引用本文： | 杨喆,王芳妹,王瀚,许杭涛,何贞泉,蔡妙珍.H2O2参与大豆根尖铝毒调节的研究[J].大豆科学,2011,30(1):105-108. |
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| 作者姓名： | 杨喆 王芳妹 王瀚 许杭涛 何贞泉 蔡妙珍 |
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| 作者单位： | 杨喆,王瀚,许杭涛,何贞泉,蔡妙珍,YANG Zhe,WANG Han,XU Hang-tao,HE Zhen-quan,CAI Miao-zhen(浙江师范大学地理与环境学院,浙江,金华,321004);王芳妹,WANG Fang-mei(浙江师范大学,化学与生命科学学院,浙江,金华,321004) |
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金 |
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| 摘 要： | 以浙春3号大豆为材料,研究100 μmol·L-1 Al3+处理下,外源H2O2对大豆铝毒的缓解效应以及可能的生理生化调节机理.结果表明:0.1 mmol·L-1 H2O2显著降低根尖Al含量,减轻了根尖活性氧(ROS)的积累及质膜通透性,增强了SOD和CAT活性,并且该缓解作用可以被150 U·mL-1过氧化氢酶(C...
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| 关 键 词： | 大豆 铝毒 H2O2 缓解效应 |
Hydrogen Peroxide Involved in Regulation Aluminum Toxicity in Root Tips of Soybean |
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| YANG Zhe,WANG Fang-mei,WANG Han,XU Hang-tao,HE Zhen-quan,CAI Miao-zhen.Hydrogen Peroxide Involved in Regulation Aluminum Toxicity in Root Tips of Soybean[J].Soybean Science,2011,30(1):105-108. |
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| Authors: | YANG Zhe WANG Fang-mei WANG Han XU Hang-tao HE Zhen-quan CAI Miao-zhen |
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| Institution: | YANG Zhe1,WANG Fang-mei2,WANG Han1,XU Hang-tao1,HE Zhen-quan1,CAI Miao-zhen1(1.College of Geography and Environmental Sciences,Zhejiang Normal University,Jinhua 321004,2.Colloge of Chemistry and Life Sciences,Zhejiang,China) |
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| Abstract: | The alleviating effect of exogenous H2O2 on aluminum(Al) toxicity and its possible mechanisms of physiological and biochemical regulation were studied in soybean.Pretreatment with 0.1 mmol·L-1 H2O2 during soybean exposure to Al significantly reduced aluminum content,active oxygen species accumulation and membrane permeability in the root tip.Pretreatment with H2O2 also increased the protective enzyme activity of SOD and CAT.Moreover,the alleviating effect was reversed by the addition of H2O2 scavenger CAT.These findings indicated that H2O2 act as a signal molecule involved in the protection of plants against Al toxicity by enhancing protective enzyme activity. |
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| Keywords: | H2O2 |
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