|
|||||
|
|
| 白茅生长及抗氧化酶系统对镉胁迫的生理响应 | |
| 引用本文： | 晋松,吴克,俞志敏,杨红,储玲.白茅生长及抗氧化酶系统对镉胁迫的生理响应[J].合肥学院学报(自然科学版),2011,21(2):77-81. |
| 作者姓名： | 晋松 吴克 俞志敏 杨红 储玲 |
| 作者单位： | 1. 合肥学院生物与环境工程系,合肥,230022 2. 合肥学院生物与环境工程系,合肥,230022;安徽中德环境技术转化中心,合肥,230022 3. 生物环境与生态安全安徽省高校省级重点实验室,安徽,芜湖,241000 |
| 基金项目： | 安徽省自然科学基金项目，安徽高校省级自然科学研究重点项目，合肥学院酶工程重点实验室专项基金，合肥学院2011年度科研发展基金 |
| 摘 要： | 通过盆栽实验研究了重金属Cd胁迫对白茅幼苗生理生态及抗氧化酶系统的影响.结果表明,镉胁迫对白茅幼苗叶片可溶性蛋白含量、叶片色素含量、根茎生长产生抑制,但一定浓度的重金属镉(≤10 mg/kg)对白茅生长有促进作用.丙二醛(MDA)含量随着Cd处理浓度的升高呈现逐渐升高的趋势.白茅幼苗叶片抗氧化酶系统受到Cd胁迫而失衡,... |
| 关 键 词： | 镉胁迫 白茅 生长 抗氧化酶系统 |
Physiological Response of Imperata cylindrica var.major Seedlings on Growth and Antioxidant Enzyme System under Cd Stress |
|
| JIN Song,WU Ke,YU Zhi-min,YANG Hong,CHU Ling.Physiological Response of Imperata cylindrica var.major Seedlings on Growth and Antioxidant Enzyme System under Cd Stress[J].Journal of Hefei University :Natural Sciences,2011,21(2):77-81. | |
| Authors: | JIN Song WU Ke YU Zhi-min YANG Hong CHU Ling |
| Institution: | 1.Department of Biological and Environmental Engineering,Hefei University,Hefei 230022;2.Chinese-German Transfer Center of Environmental Technology of Anhui,Hefei 230022;3.Provincial Key Laboratory of Biotic Environment and Ecological Safety in Anhui Higher Education,Wuhu,Anhui 241000,China) |
| Abstract: | The effects of copper(Cd) progressive stress on the seedlings growth and antioxidant enzyme system of Imperata cylindrica var.major were studied by pot experiments.The results showed that growth of Imperata cylindrica var.major seedlings was inhibited under Cd stress.The content of MDA was gradually increased with the elevated concentrations of Cd.Meanwhile,the balance of protective enzyme system was broken under Cd stress,the superoxide dismutase(SOD) activity decreased continuously,and the peroxidase(POD) and polyphenol oxidase(PPO) activities increased continuously,which caused the hurt symptom in seedlings.The test physiological indices suggested the Imperata cylindrica var.major had certain patience within the scope of low concentrations of heavy metal Cd stress |
| Keywords: | Cd stress Imperata cylindrica var major seedlings growth antioxidant enzyme system |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |