Light-Regulated Growth, Anatomical, Metabolites Biosynthesis and Transcriptional Changes in Angelica sinensis

is an alpine medicinal plant that has been widely used as a general blood tonic and gynecological indications over 2000 years, which depend on the bioactive metabolites (e.g., volatile oils, organic acids, and flavonoids). Although the accumulation of these metabolites is significantly affected by the environmental factors (e.g., altitude, temperature, and sunshine) as found in previous studies, the regulatory mechanism of different lights has not been clearly revealed. Here, growth parameters, contents of bioactive metabolites, and expression levels of related genes were examined when