Total ion chromatograms (TIC) of extracts expressing the 13
R-manoyl oxide biosynthesis genes (
CfCXS,
CfGGPPS,
CfTPS2,
CfTPS3) in combination with (from the top) water (-),
CfCYP76AH15 + CfCYP76AH11, CfCYP76AH8 + CfCYP76AH11, CfCYP76AH17 + CfCYP76AH11, CfCYP76AH15 + CfCYP76AH16, CfCYP76AH8 + CfCYP76AH16 and
CfCYP76AH17 + CfCYP76AH16 are shown. Oxygenated 13
R-manoyl oxide-derived diterpenoids (marked with grey bars) and their identity including their molecular formulas were confirmed by their accurate mass (5 ppm tolerance,
Supplementary file 1). Compounds present in trace amounts are not marked. The identity of 1,11-dihydroxy-13
R-manoyl oxide (
5d), 9-deoxydeacetylforskolin (
10b), 1,9-dideoxydeacetylforskolin (
7h) was confirmed by NMR analysis (
Figure 4 and
Tables 1 and
2). No 13
R-manoyl oxide-derived diterpenoids were detected in the water control (-). For each combination, extracts from leaves of three different
N. benthamiana plants have been analyzed and representative chromatograms are shown.