A comparative study of the physiological and biochemical properties of tomato (Lycopersicon esculentum M.) and maize (Zea mays L.) under palladium stress
文献类型：期刊论文
| 作者 | Zhao, Xiaohong1; Han, Liu1,2; Xiao, Jun3; Wang, Lingqing2 ; Liang, Tao2; Liao, Xiaoyong2
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2020-02-25 |
| 卷号 | 705页码:8 |
| ISSN号 | 0048-9697 |
| 关键词 | Palladium Tolerance Accumulation Migration Translocation factor Plants |
| DOI | 10.1016/j.scitotenv.2019.135938 |
| 通讯作者 | Wang, Lingqing(wanglq@igsnrr.ac.cn) |
| 英文摘要 | There is great concern about the environmental impact and toxicity of palladium (Pd) because of its widespread use in automotive catalytic converters and other applications. Pd migrates and transforms in the environment and is absorbed by plant roots where it affects plant growth and eventually enters the food chain. Here we explored the effects of Pd on the physicochemical and biochemical characteristics of C3 (tomato) and C4 (maize) plants. We measured physicochemical and biochemical properties, including chlorophyll, protein, soluble sugar, antioxidant enzymes. malondialdehyde, proline, and root activity, in tomato and maize seedlings after cultivation in different concentrations of PdCl2 solution (0, 0.2, 0.5, and 1 mM) in order to observe how Pd stresses them. Results showed that, with increasing Pd concentration, chlorophyll a and chlorophyll b contents and root activity decreased. Meanwhile, malondialdehyde, proline, protein, and soluble sugar contents increased. After cultivation in 1 mM PdCl2, the Pd contents in the roots, stems, and leaves of tomato seedlings were 12.389, 1.132, and 0206 mg/g, respectively. In general, Pd has significant effects on the physiological and biochemical properties of both tomato and maize. Additionally, tomato seedlings were more sensitive to Pd stress, photosynthesis in maize was less inhibited by Pd and the antioxidant capability of maize was stronger. These results indicated that maize (C4 plant) exhibited a higher tolerance to Pd than tomato (0 plant). Pd migration in tomato was observed and the translocation factor (TF) was calculated. The values of TFstem/root, TFleaf/root, TFleaf/stem, and TFshoot/root were 0.09, 0.02, 0.18, and 0.11 in tomato seedlings, respectively. Pd accumulated most in the roots, followed in turn by stems, leaves, and only trace amount of Pd was transferred into shoots. (C) 2018 Elsevier B.V. All lights reserved. |
| WOS关键词 | PLATINUM-GROUP ELEMENTS ; OXIDATIVE STRESS ; ANTIOXIDANT DEFENSE ; CHLOROPHYLL CONTENT ; LIPID-PEROXIDATION ; PRECIOUS METALS ; HEAVY-METALS ; SINAPIS-ALBA ; ROAD DUSTS ; PD |
| 资助项目 | National Key Research and Development Program of China[2017YFD0800900] ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China[2015FY111300] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000508129700138 |
| 资助机构 | National Key Research and Development Program of China ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/131331]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Lingqing |
| 作者单位 | 1.Changan Univ, Sch Civil Engn, Xian 710061, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xiaohong,Han, Liu,Xiao, Jun,et al. A comparative study of the physiological and biochemical properties of tomato (Lycopersicon esculentum M.) and maize (Zea mays L.) under palladium stress[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,705:8. |
| APA | Zhao, Xiaohong,Han, Liu,Xiao, Jun,Wang, Lingqing,Liang, Tao,&Liao, Xiaoyong.(2020).A comparative study of the physiological and biochemical properties of tomato (Lycopersicon esculentum M.) and maize (Zea mays L.) under palladium stress.SCIENCE OF THE TOTAL ENVIRONMENT,705,8. |
| MLA | Zhao, Xiaohong,et al."A comparative study of the physiological and biochemical properties of tomato (Lycopersicon esculentum M.) and maize (Zea mays L.) under palladium stress".SCIENCE OF THE TOTAL ENVIRONMENT 705(2020):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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