| 外源芦丁预处理对水分胁迫下玉米幼苗的生理效应 |
| |
| 引用本文： | 董芳,梁宗锁,贾媛媛.外源芦丁预处理对水分胁迫下玉米幼苗的生理效应[J].西北植物学报,2009,29(1). |
| |
| 作者姓名： | 董芳 梁宗锁 贾媛媛 |
| |
| 作者单位： | 西北农林科技大学,生命科学学院,陕西杨陵,712100 |
| |
| 基金项目： | 中国科学院西部行动计划项目，国家自然科学基金 |
| |
| 摘 要： | 以玉米(Zeamays L.)品种'郏单958'为材料.采用营养液水培法,研究了外源芦丁(Rutin)对聚乙二醇(PEG)胁迫下幼苗叶片质膜相对透性、脯氨酸、可溶性糖含量及保护酶活性的影响.结果显示:(1)在15%PEG-6000胁迫下,玉米叶片的MDA含量、质膜相对透性、脯氨酸和可溶性蛋白质含量均显著增加,保护酶SOD、CAT、POD活性显著升高.(2)一定浓度芦丁(>0.40 g/L)预处理可显著抑制水分胁迫下玉米幼苗叶片MDA含量的上升,降低叶片质膜相对透性,并诱导SOD、POD和CAT活性提高.降低脯氨酸和可溶性蛋白质含量.说明外源芦丁能够提高玉米幼苗的抗氧化作用,缓解水分胁迫引起的膜脂过氧化,保护细胞膜免受或减少损伤·达到提高植物抗旱性的目的.
|
| 关 键 词： | 芦丁 玉米 水分胁迫 抗氧化性 生理效应 |
Physiological Reaction of Maize Seedlings to Exogenous Rutin under Water Stress |
| |
| DONG Fang,LIANG Zong-Suo,JIA Yuan-yuan.Physiological Reaction of Maize Seedlings to Exogenous Rutin under Water Stress[J].Acta Botanica Boreali-Occidentalia Sinica,2009,29(1). |
| |
| Authors: | DONG Fang LIANG Zong-Suo JIA Yuan-yuan |
| |
| Institution: | Life Sciences College of Northwest A&F University;Yangling;Shaanxi 712100;China |
| |
| Abstract: | Zea may L.varieties,'Zhengdan 958' was hydroponically cultured to study the effects of exogenous rutin application on cell membrane permeability,proline,soluble sugar and activities of protective enzyme in the leaves of maize seedlings under PEG stress.The results showed that(1) the 15% PEG-6000 stress increased significantly the malondialdehyde(MDA) content,cell membrane permeability,the content of proline and soluble sugar and the activities of protective enzyme including superoxide dismutase(SOD),peroxid... |
| |
| Keywords: | Rutin maize water stress antioxidation physiological reaction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北植物学报》浏览原始摘要信息 |
| 点击此处可从《西北植物学报》下载免费的PDF全文 |
|
