Analysis of antioxidant enzyme activity during germination of alfalfa under salt and drought stresses
文献类型：期刊论文
| 作者 | Wang Wen-Bin ; Kim Yun-Hee ; Lee Haeng-Soon |
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2009 |
| 卷号 | 47期号:7页码:570-577 |
| 关键词 | Alfalfa Antioxidant enzymes Drought Germination Salt |
| 通讯作者 | Deng, XP |
| 英文摘要 | To understand the adaptability of alfalfa (Medicago sativa L.) to environmental stresses, we analyzed the activity of several antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT), in alfalfa shoots and roots subjected to salt and drought stresses during germination. The germination rate of six alfalfa cultivars was comparatively studied under 200 mM NaCl or 35% PEG treatment. Alfalfa Xinmu No. 1 and Northstar varieties were selected as stress-tolerant and -sensitive cultivars, respectively, and were used for further characterization. After NaCl or PEG treatment, Xinmu No. I showed enhanced seedling growth, compared with Northstar. Xinmu No. I also exhibited low levels of hydrogen peroxide (H(2)O(2)) production and lipid peroxidation, compared with Northstar. In addition, Xinmu No. 1 showed higher enzymatic activity of SOD, APX, CAT, and POD in its shoots and roots than Northstar. These results seem to indicate that Xinmu No. 1 cultivar's tolerance to salt or drought stresses during germination is associated with enhanced activity of antioxidant enzymes. This study highlights the importance of antioxidant enzymes in the establishment of alfalfa seedlings under drought and salinity conditions typical of desertification. (C) 2009 Elsevier Masson SAS. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-06-14 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/4811]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | Wang Wen-Bin,Kim Yun-Hee,Lee Haeng-Soon. Analysis of antioxidant enzyme activity during germination of alfalfa under salt and drought stresses[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2009,47(7):570-577. |
| APA | Wang Wen-Bin,Kim Yun-Hee,&Lee Haeng-Soon.(2009).Analysis of antioxidant enzyme activity during germination of alfalfa under salt and drought stresses.PLANT PHYSIOLOGY AND BIOCHEMISTRY,47(7),570-577. |
| MLA | Wang Wen-Bin,et al."Analysis of antioxidant enzyme activity during germination of alfalfa under salt and drought stresses".PLANT PHYSIOLOGY AND BIOCHEMISTRY 47.7(2009):570-577. |
入库方式： OAI收割
来源：水土保持研究所
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