|
|||||
|
|
| 铅对不同品种玉米幼苗抗氧化酶活性及根系活力的影响 | |
| 引用本文： | 张利红,李雪梅,陈强,何兴元.铅对不同品种玉米幼苗抗氧化酶活性及根系活力的影响[J].吉林农业大学学报,2006,28(2):119-122. |
| 作者姓名： | 张利红 李雪梅 陈强 何兴元 |
| 作者单位： | 1. 辽宁大学环境科学系,沈阳,110036;中国科学院沈阳应用生态研究所,沈阳,110016 2. 中国科学院沈阳应用生态研究所,沈阳,110016;沈阳师范大学化学与生命科学学院,沈阳,110034 3. 沈阳师范大学化学与生命科学学院,沈阳,110034 4. 中国科学院沈阳应用生态研究所,沈阳,110016 |
| 基金项目： | 国家高技术研究发展计划(863计划);中国科学院资助项目;沈阳师范大学校科研和教改项目 |
| 摘 要： | 通过营养液培养试验,研究了受Pb2 胁迫的不同品种玉米幼苗根系活力和抗氧化酶活性的变化。结果表明:受Pb2 的影响,叶片叶绿素含量降低,根系活力下降。随着Pb2 胁迫浓度的提高,“中单9409”的超氧化物歧化酶(SOD)活性逐渐升高,“农大108”的过氧化氢酶(CAT)活性明显增强,而“唐抗5”的SOD活性始终维持在一定水平。各品种的过氧化物酶(POD)活性基本呈先升高后降低的变化趋势,说明不同玉米幼苗通过不同抗氧化酶活性的维持或提高来增强抗氧化能力。 |
| 关 键 词： | Pb2 胁迫 抗氧化酶 根系活力 |
| 文章编号： | 1000-5684（2006）02-0119-04 |
| 收稿时间： | 2005-07-07 |
| 修稿时间： | 2005-07-07 |
Effects of Lead on Antioxidant Enzymes and Root Activities among Maize Cultivars |
|
| ZHANG Li-hong,LI Xue-mei,CHEN Qiang,HE Xing-yuan.Effects of Lead on Antioxidant Enzymes and Root Activities among Maize Cultivars[J].Journal of Jilin Agricultural University,2006,28(2):119-122. | |
| Authors: | ZHANG Li-hong LI Xue-mei CHEN Qiang HE Xing-yuan |
| Institution: | 1. Department of Environment, Liaoning University, Shenyang 110036, China ; 2. Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China ; 3. College of Chemical and Life Science, Shenyang Normal University, Shenyang 110034, China |
| Abstract: | The changes of antioxidant enzyme activity,such as superoxide dismutase(SOD),actalase(CAT) and peroxidase(POD) were studied under the condition of Pb~(2 ) stress through nutrient solution culture.The results showed that chlorophyll content and root activity decreased.With the increase of concentration of Pb~(2 ),SOD activity of Zhongdan 9409 increased slightly,CAT activity of Nongda108 increased obviously,SOD activity of Tangkang 5 maintained a certain level,and POD activity increased first,and then decreased.These results suggested that the maintenance or accumulation of different antioxidant enzyme activities would be part of general defense strategies to cope with oxidative stress. |
| Keywords: | Pb~(2 ) stress antioxidant enzyme root activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |