Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress

doi:10.1016/j.envpol.2019.06.103

	Metabolic responses and their correlations with phytochelatins in Amaranthus hypochondriacus under cadmium stress
	Xie, Mengdi 3; Chen, Wenqing 2,3,4; Lai, Xicong 3; Dai, Haibo 3; Sun, Hui 3; Zhou, Xiaoyong 1; Chen, Tongbin 1
刊名	ENVIRONMENTAL POLLUTION
	2019-09-01
卷号	252 页码:1791-1800
关键词	Amaranthus hypochondriacus Cadmium-contaminated soil Phytoremediation Phytochelatins Metabolomics
ISSN号	0269-7491
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.
资助项目	Project of the National Key R&D Program of China[2018YFD0800604]
WOS关键词	PROLINE ACCUMULATION ; NITRIC-OXIDE ; GROWTH ; GLUTATHIONE ; TOLERANCE ; GENE ; GABA ; PHOTOSYNTHESIS ; ANTIOXIDANTS ; ENHANCEMENT
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
内容类型	期刊论文
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.