Deciphering barley’s stress response: metabolomic strategies and phenotypic implications under multiple abiotic stresses

Accumulation of most of analysed metabolites significantly depended on the genotype, type of stress as well as their interaction. We indicate that several of identified metabolites might serve as a stress biomarkers (e.g. aspartic acid). We observed that greater phenotypic changes are most visible under the influence of combined stresses being mostly synergistic/additive when compared to single ones as well as considerable relationship between accumulation of specific metabolites and some phenotypic traits.