Seedlings growth and antioxidative enzymes activities in leaves under heavy metal stress differ between two desert plants: a perennial (Peganum harmala) and an annual (Halogeton glomeratus) grass
文献类型：期刊论文
| 作者 | Lu, Yan; Li, Xinrong; He, Mingzhu; Zhao, Xin; Liu, Yubing; Cui, Yan; Pan, Yanxia; Tan, Huijuan |
| 刊名 | ACTA PHYSIOLOGIAE PLANTARUM
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 32期号:3页码:583-590 |
| 关键词 | Antioxidative enzymes Copper Hydrogen peroxide Lipid peroxidation Nickel Oxidative stress Plant tolerance |
| ISSN号 | 0137-5881 |
| DOI | 10.1007/s11738-009-0436-7 |
| 通讯作者 | Lu, Yan(luyanu@126.com) |
| 英文摘要 | The present study showed the toxicity caused by heavy metal and its detoxification responses in two desert plants: perennial Peganum harmala and annual Halogeton glomeratus. In pot experiments, 1-month-old seedlings were grown under control and three levels of combined heavy metal stress. Seedling growth as well as heavy metal accumulation, antioxidative enzymes [superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX)] activities and the contents of malondialdehyde (MDA), and hydrogen peroxide (H(2)O(2)) in leaves was examined after 2 months of heavy metal exposure. Compared with H. glomeratus, growth of P. harmala was more severely inhibited. In leaves, the heavy metal accumulation pattern in both the plants was dose-dependent, being more in H. glomeratus. H. glomeratus exhibited a typical antioxidative defense mechanism, as evidenced by the elevated activities of all the three enzymes tested. P. harmala exhibited a different enzyme response pattern, with a significant reduction in CAT activity, and elevated SOD and APX activities, but significantly elevated APX activity was only at the lowest heavy metal concentration. MDA and H(2)O(2) contents were significantly enhanced in leaves of heavy metal-treated P. harmala, but in H. glomeratus were elevated only at the highest heavy metal treatment. These results indicated that H. glomeratus had a greater capacity than P. harmala to adapt to oxidative stress caused by heavy metal stress, and antioxidative defense in H. glomeratus might play an important role in heavy metal tolerance. |
| 收录类别 | SCI |
| WOS关键词 | LIPID-PEROXIDATION ; BIOCHEMICAL RESPONSES ; SUPEROXIDE-DISMUTASE ; OXIDATIVE STRESS ; COPPER EXCESS ; TOLERANCE ; NICKEL ; ACCUMULATION ; TOXICITY ; OXYGEN |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000276603100018 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556453 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lu, Yan |
| 作者单位 | Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Yan,Li, Xinrong,He, Mingzhu,et al. Seedlings growth and antioxidative enzymes activities in leaves under heavy metal stress differ between two desert plants: a perennial (Peganum harmala) and an annual (Halogeton glomeratus) grass[J]. ACTA PHYSIOLOGIAE PLANTARUM,2010,32(3):583-590. |
| APA | Lu, Yan.,Li, Xinrong.,He, Mingzhu.,Zhao, Xin.,Liu, Yubing.,...&Tan, Huijuan.(2010).Seedlings growth and antioxidative enzymes activities in leaves under heavy metal stress differ between two desert plants: a perennial (Peganum harmala) and an annual (Halogeton glomeratus) grass.ACTA PHYSIOLOGIAE PLANTARUM,32(3),583-590. |
| MLA | Lu, Yan,et al."Seedlings growth and antioxidative enzymes activities in leaves under heavy metal stress differ between two desert plants: a perennial (Peganum harmala) and an annual (Halogeton glomeratus) grass".ACTA PHYSIOLOGIAE PLANTARUM 32.3(2010):583-590. |
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来源：寒区旱区环境与工程研究所
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