| 外源一氧化氮对盐胁迫下白菜种子萌发和幼苗抗盐性的影响 |
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| 引用本文： | 马光.外源一氧化氮对盐胁迫下白菜种子萌发和幼苗抗盐性的影响[J].北方园艺,2010(20):59-61. |
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| 作者姓名： | 马光 |
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| 作者单位： | 衡水学院,生命科学系,河北,衡水,053000 |
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| 摘 要： | 研究了外源一氧化氮(NO)供体硝普钠(SNP)对150 mmol/L NaCl胁迫下,白菜种子的发芽率、发芽势、幼苗MDA含量和SOD活性。结果表明:适当浓度的SNP能明显提高盐胁迫下白菜种子的发芽率和发芽势;较低浓度的SNP处理可明显缓解盐胁迫下4叶期白菜幼苗中MDA的积累,提高SOD酶活性;过高浓度的SNP会产生胁迫作用,发芽率和发芽势下降,MDA含量上升,SOD酶活性下降。
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| 关 键 词： | SNP 白菜 发芽率 MDA SOD |
Effects of Exogenous Nitric Oxide on Seed Germination and Seedling Resistance of Chinese Cabbage under Salt Stress |
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| MA Guang.Effects of Exogenous Nitric Oxide on Seed Germination and Seedling Resistance of Chinese Cabbage under Salt Stress[J].Northern Horticulture,2010(20):59-61. |
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| Authors: | MA Guang |
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| Institution: | MA Guang(Department of Life Science,Hengshui University,Hengshui,Hebei 053000) |
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| Abstract: | The germination rate,germination vigor,MDA content and SOD activity of the Chinese cabbage treated by SNP,an exogenous nitric oxide donor,at the different concentration under 150 mmol/L NaCl stress were studied.The results showed that moderate concentration could enhance germination rate,germination vigor,reduced MDA content and increased SOD activity of the cabbage seedling at 4-leaf stage.However,excess concentration of SNP brought stress to cabbage,such as reduced germination rate and germination vigor,i... |
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| Keywords: | SNP Chinese cabbage germination rate MDA SOD |
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