title: Primary reaction of phytochrome.
mesh_terms: D000872:Anthocyanins / Q000096:biosynthesis*; D001205:Ascorbic Acid / Q000096:biosynthesis*; D008027:Light; D008956:Models, Chemical; D009149:Mustard Plant / Q000378:metabolism / Q000528:radiation effects; D010777:Photochemistry; D010860:Pigments, Biological / Q000502:physiology*; D010944:Plants / Q000378:metabolism*; D010946:Plants, Medicinal; D011830:Radiation Effects; D012639:Seeds
chemical_list: D000872:Anthocyanins; D010860:Pigments, Biological; D001205:Ascorbic Acid