).In vitro bioassays with O-methyl and non-OmethylflavonoidsMaize antifungal assays employing self-purified or commercially readily available flavonoids (xilonenin, genkwanin, 5-O-methylapigenin, 5-O-methylnaringenin, apigenin, and naringenin; see Supplemental Table S17) have been performed employing the Clinical and Laboratory Standards Institute M38-A2 guidelinesFormation of O-methylflavonoids in maizePLANT PHYSIOLOGY 2022: 188; 167|Accession numbersSequence information for FOMT2-W22 (MZ484743) and FOMT4W22 (MZ484744) may be located inside the NCBI GenBank (ncbi.nlm.nih.gov/genbank/) below the corresponding identifiers. Raw reads of the RNA-seq experiment have been deposited inside the NCBI SRA beneath the BioProject accession PRJNA742147.Supplemental dataThe following materials are readily available inside the on the web version of this article. Supplemental Bcl-2 Inhibitor Storage & Stability Figure S1. MS/MS spectra of putative 5and 7-O-methylflavonoids. Supplemental Figure S2. Association Kainate Receptor Antagonist Accession mapping working with B73 Ky21 RIL with the GLM and 80,440 SNPs. Supplemental Figure S3. GWAS mapping reveals association among the occurrence of genkwanin and FOMT4. Supplemental Figure S4. Schematic chromosomal array of FOMT2 and FOMT3 in B73 and W22. Supplemental Figure S5. Amino acid sequence alignment of FOMT2/3. Supplemental Figure S6. Phylogenetic tree of maize FOMT genes characterized within this study, closely associated maize OMT genes, and characterized FOMT genes from other monocots and dicots. Supplemental Figure S7. Expression of BX OMT genes in W22 upon fungal infection. Supplemental Figure S8. Regiospecific O-methylation and elution patterns of FOMT2 and FOMT4 merchandise. Supplemental Figure S9. Fragmentation patterns of 2hydroxynaringenin and its O-methyl derivatives. Supplemental Figure S10. GWAS mapping reveals association among the occurrence of xilonenin tautomers and FOMT2/3. Supplemental Figure S11. Amino acid sequence alignment of Poaceae F2Hs belonging towards the CYP93G subfamily. Supplemental Figure S12. Enzymatic activity of CYP93G family members related to F2H1 (CYP93G5) with naringenin or eriodictyol. Supplemental Figure S13. NMR chemical shift information of xilonenin tautomers (in MeOH-d3). Supplemental Figure S14. The two xilonenin tautomers exhibit diverse UV absorption. Supplemental Figure S15. De novo production of flavonoids in different maize lines just after fungal infection. Supplemental Figure S16. Visible signs of infection on hybrid maize immediately after inoculation with various pathogenic fungi. Supplemental Figure S17. Large-scale transcriptomic and metabolomic modifications upon SLB infection. Supplemental Figure S18. Expression from the BX biosynthetic pathway in the course of fungal infection. Supplemental Figure S19. RT-qPCR validation of flavonoid and BX pathway gene expression final results in noninfected and fungus-infected W22 leaves. Supplemental Figure S20. Antifungal activity of naringenin and 5-O-methylnaringenin.Supplemental Figure S21. Antifungal activity of apigenin and 5-O-methylapigenin. Supplemental Figure S22. Codon-optimized gene sequences of FOMT3-B73 and FOMT5-B73 synthesized for expression in E. coli. Supplemental Figure S23. Codon-optimized gene sequences of CYP93G candidates synthesized for expression in S. cerevisiae. Supplemental Table S1. P-values of t test evaluation to figure out statistical substantial variations of flavonoid content material among treatments obtained by the LC S measurements shown in Supplemental Figure 1B. Supplemental Table S2. Expression of maize genes putatively involved within the phenylpropanoid pathway, flavonoid