Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress
文献类型：期刊论文
| 作者 | Wang, Jinchuang ; Chen, Juan ; Pan, Kaiwen |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2013 |
| 卷号 | 20期号:3页码:1441-1449 |
| 关键词 | Abscisic acid Catalase Lipid peroxidation Oxidative damage Lead stress |
| ISSN号 | 0944-1344 |
| 产权排序 | 2 |
| 通讯作者 | Wang, J (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China. |
| 英文摘要 | This study hypothesized that the positive or negative effects of exogenous abscisic acid (ABA) on oxidative stress caused by lead were dose dependent. The effects of different levels of ABA (2.5, 5, and 10 mg L-1) on lead toxicity in the leaves of Atractylodes macrocephala were studied by investigating plant growth, soluble sugars, proteins, lipid peroxidation, and antioxidative enzymes. Excess Pb inhibited root dry weight, root length, and the number of lateral roots, but increased shoot growth. In addition, lead stress significantly decreased the levels of chlorophyll pigments, protein, and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD). Different levels of ABA significantly increased SOD, CAT, POD, and APX activities, but decreased the level of hydrogen peroxide and malondialdehyde in nonstressed plants. Exogenous application of 2.5 mg L-1 ABA detoxified the stress-generated damages caused by Pb and also enhanced plant growth, soluble sugars, proteins, and all four antioxidant enzyme activities but reduced Pb uptake of lead-stressed plant compared to lead treatment alone. However, the toxic effects of Pb were further increased by the applications of 5 and 10 mg L-1 ABA. The levels of antioxidants caused by a low concentration of exogenous ABA might be responsible for minimizing the Pb-induced toxicity in A. macrocephala. |
| 学科主题 | Environmental Sciences & Ecology |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000315442500022 |
| 公开日期 | 2014-11-21 |
| 源URL | [http://210.75.237.14/handle/351003/24242]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Wang, Jinchuang,Chen, Juan,Pan, Kaiwen. Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2013,20(3):1441-1449. |
| APA | Wang, Jinchuang,Chen, Juan,&Pan, Kaiwen.(2013).Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,20(3),1441-1449. |
| MLA | Wang, Jinchuang,et al."Effect of exogenous abscisic acid on the level of antioxidants in Atractylodes macrocephala Koidz under lead stress".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 20.3(2013):1441-1449. |
入库方式： OAI收割
来源：成都生物研究所
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