Host: The Japanese Society of Plant Physiologists
Pages 0308
In order to investigate an inter-tissue diversity of plant secondary metabolisms, the metabolic profiles of 32 tissues of Arabidopsis thaliana (Col-0 ecotype) were acquired by using the LC-Q-TOF/MS method with considering growth conditions of the public transcriptome data such as AtGenExpress Development. The obtained data matrix (called AtMetExpress Development LC/MS) contained 2522 peaks with annotations of about 100 metabolites. A detected metabolite (m/z 138, Rt 2.06 min) specifically accumulated in flower buds and apical meristem was identified to be tyramine from the annotation data A comparison of the accumulation profiles with that of gene expression data revealed that one homolog of putative aromatic amino acid decarboxylase gene is likely to be responsible for the tyramine biosynthsis in A. thaliana due to those identical accumulation and expression patterns.
