Advances and perspectives in the metabolomics of stomatal movement and the disease triangle

•Metabolomics has facilitated studies of metabolites in stomatal disease triangle.•Biotic and abiotic environmental factors regulate metabolites in stomatal immunity.•Hormone signaling and crosstalk play important roles in stomatal immunity.•Newly discovered metabolites have improved understanding of stomatal disease triangle.•Emerging areas include single-cell metabolomics, multi-‘omics and mass spectrometry imaging.