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A comparative study of the physiological and biochemical properties of tomato (Lycopersicon esculentum M.) and maize (Zea mays L.) under palladium stress
Zhao, Xiaohong1; Han, Liu1,2; Xiao, Jun3; Wang, Lingqing2; Liang, Tao2; Liao, Xiaoyong2
通讯作者Wang, Lingqing(wanglq@igsnrr.ac.cn)
2020-02-25
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号705页码:8
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.
关键词Palladium Tolerance Accumulation Migration Translocation factor Plants
DOI10.1016/j.scitotenv.2019.135938
关键词[WOS]PLATINUM-GROUP ELEMENTS ; OXIDATIVE STRESS ; ANTIOXIDANT DEFENSE ; CHLOROPHYLL CONTENT ; LIPID-PEROXIDATION ; PRECIOUS METALS ; HEAVY-METALS ; SINAPIS-ALBA ; ROAD DUSTS ; PD
收录类别SCI ; SCI
语种英语
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
项目资助者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
WOS类目Environmental Sciences
WOS记录号WOS:000508129700138
出版者ELSEVIER
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/13132
专题加速器质谱中心
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
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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.
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