Metabolic signatures of Arabidopsis thaliana abiotic stress responses elucidate patterns in stress priming,acclimation,and recovery

作     者：Yuan Xu Dana M.Freund Adrian D.Hegeman Jerry D.Cohen 

作者机构：Department of Horticultural Science and the Microbial and Plant Genomics InstituteUniversity of MinnesotaMNSaint PaulUSA Department of Plant and Microbial BiologyUniversity of MinnesotaMNSaint PaulUSA 

出 版 物：《Stress Biology》 (逆境生物学（英文）)

年 卷 期：2022年第2卷第1期

页      面：550-565页

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 0905[农学-畜牧学] 0906[农学-兽医学] 0901[农学-作物学] 0902[农学-园艺学] 

基　　金：funding provided by the NSF Plant Genome Research Program grants IOS-1238812 and IOS-1400818 well as support from the University of Minnesota Informatics Institute,the Minnesota Agricultural Experiment Station by the Gordon and Margaret Bailey Endowment for Environmental Horticulture 

主　　题：Abiotic stress Arabidopsis thaliana LC-HRMS Metabolomics Plant stress acclimation Priming Recovery 

摘      要：Temperature,water,and light are three abiotic stress factors that have major influences on plant growth,development,and *** can be primed by a prior mild stress to enhance their resistance to future *** used an untargeted metabolomics approach to examine Arabidopsis thaliana 11-day-old seedling’s abiotic stress responses including heat(with and without priming),cold(with and without priming),water-deficit and high-light before and after a 2-day-recovery *** of the physiological phenotypes showed that seedlings with stress treatment resulted in a reduction in fresh weight,hypocotyl and root length but remained *** stress responsive metabolites were identified,confirmed with reference standards,quantified,and *** identified shared and specific stress signatures for cold,heat,water-deficit,and high-light *** metabolism including amino acid metabolism,sugar metabolism,glycolysis,TCA cycle,GABA shunt,glutathione metabolism,purine metabolism,and urea cycle were found to undergo changes that are fundamentally different,although some shared commonalities in response to different *** increases in cysteine abundance and decreases in reduced glutathione were observed following multiple stress treatments highlighting the importance of oxidative stress as a general phenomenon in abiotic *** fold increases in low-turnover amino acids and maltose demonstrate the critical role of protein and starch autolysis in early abiotic stress responses.