| 干旱胁迫对菊芋苗期叶片保护酶活性及膜脂过氧化作用的影响 |
| |
| 引用本文： | 黄高峰,王丽慧,方云花,李莉.干旱胁迫对菊芋苗期叶片保护酶活性及膜脂过氧化作用的影响[J].西南农业学报,2011,24(2). |
| |
| 作者姓名： | 黄高峰 王丽慧 方云花 李莉 |
| |
| 作者单位： | 青海省农林科学院菊芋研发中心,青海省蔬菜遗传与生理重点实验室,青海西宁810016 |
| |
| 摘 要： | 本试验采用盆栽控水的方法研究了干旱胁迫对菊芋叶片保护酶活性及膜脂过氧化作用的影响.轻度胁迫下,保护酶活性上升能有效清除体内自由基,膜脂过氧化程度低,丙二醛含量较低;中度胁迫下,保护酶活性持续上升,保护细胞免受更大损伤,丙二醛含量有所升高;重度胁迫下,保护酶活性先升后降,酶保护系统遭到破坏,活性氧积累,膜脂过氧化加剧,丙二醛含量升高.试验表明菊芋能有效抵御轻度及中度的干旱胁迫,具有较强的抗旱性.
|
| 关 键 词： | 菊芋 干旱胁迫 保护酶 过氧化作用 |
Effects of Drought Stress on Protective Enzyme Activity and Membrane Lipid Per-oxidation of Leaf in Helianthus tuberosus L.Seedling |
| |
| HUANG Gao-feng,WANG Li-hui,FANG Yun-hua,LI Li.Effects of Drought Stress on Protective Enzyme Activity and Membrane Lipid Per-oxidation of Leaf in Helianthus tuberosus L.Seedling[J].Southwest China Journal of Agricultural Sciences,2011,24(2). |
| |
| Authors: | HUANG Gao-feng WANG Li-hui FANG Yun-hua LI Li |
| |
| Institution: | HUANG Gao-feng,WANG Li-hui,FANG Yun-hua,LI Li(Qinghai Academy of Agriculture and Forestry Research and Development Center of the Helianthus tuberosus L.,Qinghai Province Laboratory of Vegetable Genetics and Physiology,Qinghai Xining 810016,China) |
| |
| Abstract: | By the method of water controlled,the effects of the drought stress on the protective enzyme activity and membrane lipid per oxidation of in Helianthus tuberosus L.seedling leaves were investigated.Under the mild stress,the activities of protective enzymes increased could effectively remove free radicals,and the level of lipid peroxidation and MDA content were low.Under moderate stress,the protective activity continued increasing to protect cells from more damage,MDA content increased.Under the severe stres... |
| |
| Keywords: | Helianthus tuberosus L Drought stress Protective enzyme Peroxidation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
