Fig. 5.
Anthocyanin composition analysis of the leaves and corollas of the control, OE-MaAN2, and OE-MaMybA tobaccos. High-performance liquid chromatography analysis of anthocyanin extract (a), and its corresponding hydrolysate (b) in the leaves and corollas of the control, OE-MaAN2, and OE-MaMybA tobaccos. According to the chromatographic peak in the sequence, the standards are delphinidin 3-rutinoside, cyanidin 3-rutinoside, and pelargonidin 3-rutinoside (from left to right) in diagram a; and delphinidin, cyanidin, petunidin, pelargonidin, and malvidin (from left to right) in diagram b. The mass spectrum and structure patterns of delphinidin 3-rutinoside (c)