Figure 3

Proposed biosynthetic pathway of 17 isorhamnetin (I) glycosides (mono-, peaks 64 and 66; di-, peaks 31, 32, 44, 47, 51, 55, 60 and 62; tri-, peaks 12, 15, 22, 23, 33, 34 and 42) identified from young leaves of soybean cultivars (SLs 1, 4, 16 and 19). Compound names are presented according to peak numbers in Table 1. gal, galactose; glu, glucose; rham, rhamnose; gen, gentiobiose; rob, robinobiose; rut, rutinose; neo, neohesperidose; sop, sophorose.