| 精胺和甲基乙二醛一双(脒基腙)对小麦幼苗抗旱性的影响 |
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| 引用本文： | 刘海龙,关军锋,李广敏. 精胺和甲基乙二醛一双(脒基腙)对小麦幼苗抗旱性的影响[J]. 华北农学报, 2003, 18(3): 41-43 |
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| 作者姓名： | 刘海龙 关军锋 李广敏 |
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| 作者单位： | 河北省农林科学院遗传生理研究所,河北,石家庄,050051 |
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| 基金项目： | 河北省自然科学基金资助项目(300297) |
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| 摘 要： | 在砂培模拟干旱条件下，叶面喷施精胺(Spm)1mmol／L可提高小麦幼苗叶片相对含水量，降低质膜透性，提高抗旱性；而亚精胺(Spd)和Spm的抑制剂-甲基乙二醛-双(脒基腙)(MGBG)1mmol／L的作用相反。内源多胺含量测定表明，Spm使叶片内源腐胺(Put)、Spd和Spm含量均有所提高；而MGBG处理虽增加了内源Put含量，却降低了spd和Spm水平。
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| 关 键 词： | 精胺 甲基乙二醛-双 脒基腙 小麦 幼苗 抗旱性 影响因素 |
| 文章编号： | 1000-7091(2003)03-0041-03 |
| 修稿时间： | 2002-10-08 |
The Effect of Spermine and MGBG on Drought-resistance of Wheat Seedlings |
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| LIU Hai-long,GUAN Jun-feng,LI Guang-min. The Effect of Spermine and MGBG on Drought-resistance of Wheat Seedlings[J]. Acta Agriculturae Boreali-Sinica, 2003, 18(3): 41-43 |
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| Authors: | LIU Hai-long GUAN Jun-feng LI Guang-min |
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| Abstract: | Under simulative drought stress with sand culture, spraying leaves with Spm(1 mmol/L) could increase relative water content,but decrease relative membrane permeability, thus enhance drought-resistance of wheat seedlings. However, spraying leaves with MGBG(1 mmol/L), an inhibitor of Spd and Spm, had opposite effects. The contents of endogenous Put, Spd and Spm in wheat seedling were stimulated by Spm treatment. But by MGBG treatment,only put was stimulated while the contents of Spd and Spm were reduced. |
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| Keywords: | PAs Wheat Seedling Drought-resistance |
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