Project description:By knocking out genes encoding specific arogenate dehydrase (ADT) enzymes in Arabidopsis, variable reductions in lignin can be achieved. To understand how ADT composition affects plant phenotypes and biomolecular systems, we successfully constructed single and multiple ADT knockout (KO) mutants in Arabidopsis. Using these mutants, a multi-omics (metabolome, transcriptome and proteome) evaluation was conducted using GC- and LC-MS, RNA-Seq, and iTRAQ labeled LC-MS/MS technologies. Identifications include primary and secondary metabolites, transcripts, and proteins in leaf and stem samples taken at 4 weeks of age from 9 KO and wild-type (WT) lines.