| 多胺对渗透胁迫下玉米幼苗叶片生理生化指标的影响 |
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| 引用本文： | 宋维贤,杜红阳,常云霞,刘怀攀,李潮海.多胺对渗透胁迫下玉米幼苗叶片生理生化指标的影响[J].安徽农业科学,2010,38(5):2292-2293. |
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| 作者姓名： | 宋维贤 杜红阳 常云霞 刘怀攀 李潮海 |
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| 作者单位： | 河南农业大学农学院作物生长与发育调控省重点实验室,河南郑州,450002;周口师范学院植物学重点实验室,河南周口,466000 |
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| 基金项目： | 国家自然科学基金项目(30771296);;河南省基础与前沿技术研究计划项目(082300430310);;河南省教育厅自然科学基础研究计划项目(2007180052) |
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| 摘 要： | 目的]探讨多胺增强植物抗旱性的机理,为多胺作为外源生长调节物质在玉米抗旱过程中的应用提供理论基础。方法]以聚乙二醇（PEG-6000）模拟自然干旱,用外源Spd处理抗旱性不同的2个玉米品种农大108和掖单13,检测渗透胁迫下2个品种幼苗叶片中相对含水量及可溶性蛋白含量的变化。结果]渗透胁迫7 d,抗旱性弱的掖单13玉米幼苗叶片的相对含水量和可溶性蛋白含量的下降幅度明显大于抗旱性较强的品种农大108;外源Spd处理明显抑制在胁迫条件下掖单13幼苗叶片相对含水量的下降,并且提高了其在胁迫条件下可溶性蛋白的含量。结论]外源Spd处理,通过提高渗透胁迫下玉米幼苗叶片内蛋白质的含量,提高了玉米幼苗的抗渗透胁迫能力。
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| 关 键 词： | 渗透胁迫 玉米 多胺 可溶性蛋白 |
Effects of Polyamine on Leaf Physiological and Biochemical Indexes of Maize Seedlings under Osmotic Stress |
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| SONG Wei-xian et al.Effects of Polyamine on Leaf Physiological and Biochemical Indexes of Maize Seedlings under Osmotic Stress[J].Journal of Anhui Agricultural Sciences,2010,38(5):2292-2293. |
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| Authors: | SONG Wei-xian |
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| Institution: | Henan Key Laboratory for Regulating Controlling Crop Growth and Development;Agricultural School of Henan Agricultural University;Zhengzhou;Henan 450002 |
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| Abstract: | Objective] The research aimed to probe into the mechanism of polyamine enhancing the tolerance of plants to drought stress and provide theoretical basis for application of polyamine in process of maize drought resistance.Method]With PEG-6000 simulating natural drought,the change in content of soluble protein and relative water content were investigated in seedling leaves of two maize cultivars,Nongda 108 and Yedan 13 under osmotic stress with exogenous Spd treatment.Result] On the 7th day,leaf relative w... |
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| Keywords: | Osmotic stress Maize Polyamine Soluble protein |
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