ABSTRACT
Plants are sessile in nature and faces numerous abiotic stresses during their growth stages. These abiotic stresses are responsible for reducing plant growth and development and ultimately yield. However, plant scientists find a number of mechanism and strategies to minimize the impact of these stresses. Among them, the omics study is relevant to gather all the relevant information regarding the expression of genes, metabolite, protein, transcripts, and ions. Metabolomics is important to study the expression of different enzymes, antioxidants, primary and secondary metabolites, and osmoprotectants under normal and stress environment. This information is used to find the strategy and mechanism to reduce the impact of stresses. This chapter compiles the cereal metabolomics (rice, wheat, maize, sorghum, and barley) and the stress-tolerance mechanism. Improving crop yield and human nutrition shall benefit from a better understanding of plant metabolomic activity. Advances in metabolomics of cereal crops have been the subject of research interest for enhancing their economic and nutritional value. In future, metabolomics may advance further by developing accurate algorithms and using artificial intelligence-based metabolite detection. These will help interpreting high-throughput metabolite data and fitting it into the validated metabolic pathways.
