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Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress
Xie, Mengdi1; Chen, Wenqing1,2,4; Lai, Xicong1; Dai, Haibo1; Sun, Hui1; Zhou, Xiaoyong3; Chen, Tongbin3
2019-09-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume252Pages:1791-1800
Corresponding AuthorChen, Wenqing(2017323050029@stu.scu.edu.cn)
AbstractPhytochelatins (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.
KeywordAmaranthus hypochondriacus Cadmium-contaminated soil Phytoremediation Phytochelatins Metabolomics
DOI10.1016/j.envpol.2019.06.103
WOS KeywordPROLINE ACCUMULATION ; NITRIC-OXIDE ; GROWTH ; GLUTATHIONE ; TOLERANCE ; GENE ; GABA ; PHOTOSYNTHESIS ; ANTIOXIDANTS ; ENHANCEMENT
Indexed BySCI
Language英语
Funding ProjectProject of the National Key R&D Program of China[2018YFD0800604]
Funding OrganizationProject of the National Key R&D Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000483405400089
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69730
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen, Wenqing
Affiliation1.Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Sichuan, Peoples R China
2.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.24,South Sect 4,1st Ring Rd, Chengdu 610065, Sichuan, Peoples R China
Recommended Citation
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.
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