| 外源水杨酸浸种对干旱胁迫下国槐根系抗氧化酶系的影响 |
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| 引用本文： | 张海军.外源水杨酸浸种对干旱胁迫下国槐根系抗氧化酶系的影响[J].科学之友,2011(21). |
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| 作者姓名： | 张海军 |
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| 作者单位： | 山西晋路园林绿化工程有限公司; |
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| 摘 要： | 采用向1/2 Hoagland营养液中按一定比例添加聚乙二醇(PEG—6 000)模拟干旱胁迫的方式,研究了外源SA浸种对干旱胁迫下国槐根系抗氧化酶系的影响。其结果表明:①与对照组相比,干旱胁迫不同程度地降低了国槐根系的SOD、POD、CAT活性等,明显增加了根系MDA含量水平。②使用适当浓度的SA浸种可以提高SOD、POD及CAT活性,也可以显著降低根苗MDA含量水平,SA浸种有利于缓解干旱胁迫带来的不良影响。③低浓度的SA浸种处理能够提高国槐根系抗旱性,缓解干旱胁迫伤害,而高浓度处理则加剧了干旱胁迫的伤害。1 mmol/L浸种具有提高国槐根系抗旱性的最佳效果。
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| 关 键 词： | 国槐 水杨酸 干旱胁迫 抗氧化酶系 |
Exogenous salicylic acid to drought stress of the tree seed under the influence of the root of antioxidant enzymes |
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| Zhang Haijun.Exogenous salicylic acid to drought stress of the tree seed under the influence of the root of antioxidant enzymes[J].Friend of Science Amateurs,2011(21). |
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| Authors: | Zhang Haijun |
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| Institution: | Zhang Haijun |
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| Abstract: | The solution to 1/2 Hoagland by certain proportion of added polyethylene glycol(PEG-6 000) simulation drought stress method to study the exogenous SA to drought stress of the tree seed under the influence of the root of antioxidant enzymes.The results show that:(1)compared with the control,drought stress to reduce the different level of the tree of the root of SOD and POD and CAT activity and so,significantly increase the content of MDA root level.(2)use proper concentration of SA of SOD and POD seed can im... |
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| Keywords: | the tree Salicylic acid Drought stress Antioxidant enzymes |
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