| Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots | |
Li, Dandan1,2; Zhou, Dongmei1; Wang, Peng1,2; Li, Lianzhen3
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| 发表期刊 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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| ISSN | 0147-6513 |
| 2011-10-01 | |
| 卷号 | 74期号:7页码:2029-2035 |
| 关键词 | Temperature Cadmium Subcellular Distribution Antioxidant Enzymatic Activities Wheat |
| 产权排序 | [Li, Dandan; Zhou, Dongmei; Wang, Peng] Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China; [Li, Dandan; Wang, Peng] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Li, Lianzhen] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 通讯作者 | Zhou, DM (reprint author), Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 作者部门 | 污染过程与控制实验室 |
| 英文摘要 | In this study, the effect of temperature on Cd toxicity to wheat roots was evaluated in terms of the relative root length and subcellular distribution of Cd as well as the antioxidant enzymatic activities after exposed to Cd for 72 h under different temperatures. The result showed that the EC(50)-values for the relative root length were 9.24, 4.91 and 3.62 mu M Cd at 18, 25 and 30 degrees C, respectively. The Cd concentrations in the cellular metal-sensitive fraction or the potentially toxic fraction (cell debris fraction-Cd) were well correlated with the toxicity of Cd. Interestingly, the superoxide dismutase (SOD) and catalase (CAT) in wheat roots without Cd exposure were increased at 18 degrees C compared to those at 25 degrees C, while decreased at 30 degrees C. The CAT activities decreased with increasing Cd level at 25 and 18 degrees C but did not show the same change at 30 degrees C, which could be explained by the subcellular distribution of Cd. (C) 2011 Elsevier Inc. All rights reserved.; In this study, the effect of temperature on Cd toxicity to wheat roots was evaluated in terms of the relative root length and subcellular distribution of Cd as well as the antioxidant enzymatic activities after exposed to Cd for 72 h under different temperatures. The result showed that the EC(50)-values for the relative root length were 9.24, 4.91 and 3.62 mu M Cd at 18, 25 and 30 degrees C, respectively. The Cd concentrations in the cellular metal-sensitive fraction or the potentially toxic fraction (cell debris fraction-Cd) were well correlated with the toxicity of Cd. Interestingly, the superoxide dismutase (SOD) and catalase (CAT) in wheat roots without Cd exposure were increased at 18 degrees C compared to those at 25 degrees C, while decreased at 30 degrees C. The CAT activities decreased with increasing Cd level at 25 and 18 degrees C but did not show the same change at 30 degrees C, which could be explained by the subcellular distribution of Cd. (C) 2011 Elsevier Inc. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | Ministry of Environmental Protection of Peoples' Republic of China[201006032-03]; National Natural Science Foundation[21077111]; Natural Science Foundation of Jiangsu Province[BK2009339] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | MOLECULAR MECHANISMS ; AQUATIC ORGANISMS ; MARINE DIATOM ; HEAVY-METALS ; TOXICITY ; PLANTS ; SENSITIVITY ; SEEDLINGS ; SALINITY ; ZINC |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Toxicology |
| WOS记录号 | WOS:000295438000028 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5392 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Dandan,Zhou, Dongmei,Wang, Peng,et al. Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2011,74(7):2029-2035. |
| APA | Li, Dandan,Zhou, Dongmei,Wang, Peng,&Li, Lianzhen.(2011).Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,74(7),2029-2035. |
| MLA | Li, Dandan,et al."Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 74.7(2011):2029-2035. |
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