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Cadmium-induced changes in composition and co-metabolism of glycerolipids species in wheat root: glycerolipidomic and transcriptomic approach

Citation

Wu, S and Hu, C and Wang, X and Wang, Y and Yu, M and Xiao, H and Shabala, S and Wu, K and Tan, Q and Xu, S and Sun, X, Cadmium-induced changes in composition and co-metabolism of glycerolipids species in wheat root: glycerolipidomic and transcriptomic approach, Journal of Hazardous Materials, 423, (Part B) Article 127115. ISSN 0304-3894 (2022) [Refereed Article]

Copyright Statement

2021 Elsevier B.V. All rights reserved.

DOI: doi:10.1016/j.jhazmat.2021.127115

Abstract

Lipids are the structural constituents of cell membranes and play crucial roles in plant adaptation to abiotic stresses. The aim of this study was to use glycerolipidomic and transcriptomic to analyze the changes in lipids metabolism induced by cadmium (Cd) exposure in wheat. The results indicated that Cd stress did not decrease the concentrations of monogalactosyldiacyglycerol (MGDG), phosphatidylcholine (PC), lysophosphatidylcholine (LPC) and phosphatidic acid at 6 h, but decreased digalactosyldoacylglycerol (DGDG), MGDG, PC, phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylserine (PS) and LPC concentrations in wheat root at 24 h. Although the concentrations of highly abundant glycerolipids PC and PE were decreased, the ratios of PC/PE increased thus contributing to wheat adaptation to Cd stress. Cd did not reduce the extent of total lipid unsaturation due to the unchanged concentrations of high abundance species of C36:4, C34:2, C34:3 and C36:6 at 6 h, indicative of their roles in resisting Cd stress. The correlation analysis revealed the glycerolipids species experiencing co-metabolism under Cd stress, which is driven by the activated expression of genes related to glycerolipid metabolism, desaturation and oxylipin synthesis. This study gives insights into the changes of glycerolipids induced by Cd and the roles in wheat adaptation to Cd stress.

Item Details

Item Type:Refereed Article
Keywords:glycerolipidomic, transcriptomic, lipid, cadmium, lipid unsaturation, high abundance glycerolipid species, ratio of phosphatidylcholine/phosphatidylethanolamine, lipid co-occurrence, lipoidase
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Wheat
UTAS Author:Shabala, S (Professor Sergey Shabala)
ID Code:147854
Year Published:2022
Web of Science® Times Cited:2
Deposited By:Agriculture and Food Systems
Deposited On:2021-11-18
Last Modified:2022-04-14
Downloads:0

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