Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress
文献类型：期刊论文
| 作者 | Xie, Mengdi3; Chen, Wenqing2,3,4; Lai, Xicong3; Dai, Haibo3; Sun, Hui3; Zhou, Xiaoyong1; Chen, Tongbin1
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2019-09-01 |
| 卷号 | 252页码:1791-1800 |
| ISSN号 | 0269-7491 |
| 关键词 | Amaranthus hypochondriacus Cadmium-contaminated soil Phytoremediation Phytochelatins Metabolomics |
| DOI | 10.1016/j.envpol.2019.06.103 |
| 通讯作者 | Chen, Wenqing(2017323050029@stu.scu.edu.cn) |
| 英文摘要 | Phytochelatins (PCs) play a vital role in the tolerance and enrichment of cadmium (Cd) in higher plants by chelating with Cd2+. The aim of this study was to perform a full-scale metabolomics analysis of metabolic responses highly correlated with PCs generation. These metabolites and metabolic pathways were expected to promote PCs generation and further optimize Cd absorption in plants. In the current study, Amaranthus hypochondriacus, a potential species for phytoremediation, was first adopted to investigate physiological responses to Cd stress via LCMS/MS-based metabolomics and the HPLC based determination of thiol compounds. The results showed that the leaves of A. hypochondriacus under high Cd stress accumulated 40 times the amount of Cd compared to the leaves of the plants not under Cd stress and had an increased content of three types of PCs. Metabolomics qualitatively identified 12084 substances in total, among which 41 were significantly different metabolites (SDMs) between the two groups and involved in 7 metabolic pathways. Among the SDMs, 12 metabolites were highly linearly correlated with PCs involved in three pathways (Val, Leu and Ile biosynthesis; Ala, Asp and Glu metabolism; and Arg and Pro metabolism). These results provide an innovative method to promote PCs synthesis for the restoration of Cd-contaminated-soil. (C) 2019 Elsevier Ltd. All rights reserved. |
| WOS关键词 | PROLINE ACCUMULATION ; NITRIC-OXIDE ; GROWTH ; GLUTATHIONE ; TOLERANCE ; GENE ; GABA ; PHOTOSYNTHESIS ; ANTIOXIDANTS ; ENHANCEMENT |
| 资助项目 | Project of the National Key R&D Program of China[2018YFD0800604] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000483405400089 |
| 资助机构 | Project of the National Key R&D Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69729]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Wenqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.24,South Sect 4,1st Ring Rd, Chengdu 610065, Sichuan, Peoples R China 3.Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China 4.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Mengdi,Chen, Wenqing,Lai, Xicong,et al. Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress[J]. ENVIRONMENTAL POLLUTION,2019,252:1791-1800. |
| APA | Xie, Mengdi.,Chen, Wenqing.,Lai, Xicong.,Dai, Haibo.,Sun, Hui.,...&Chen, Tongbin.(2019).Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress.ENVIRONMENTAL POLLUTION,252,1791-1800. |
| MLA | Xie, Mengdi,et al."Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress".ENVIRONMENTAL POLLUTION 252(2019):1791-1800. |
入库方式： OAI收割
来源：地理科学与资源研究所
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