Acer L. species are well known as ornamental trees due to their colourful leaves in autumn season. pictum subsp. mono (Maxim.) H. Ohashi (APM) and tataricum ginnala (Maximowicz) Wesmael (ATG) form with completely different colours autumn, yellow red, respectively. In response this phenomenon, we investigated the metabolic regulation of APM ATG seasons by combining metabolomics, ionomics, antiox...