Table 1.
Artemisinic compounds in Artemisia annua at each developmental stage. (μg g−1 FW)
Compound | Vegetative stage | Reproductive stages | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Bolting | Budding | Full flowering | Post flowering | |||||||
ShAM | VL | ShAM | BL | Buds | BuL | Flowers | FL | Flowers | PFL | |
Artemisinin | 2047.2 a | 2845.1 w | 1198.7 b | 2338.0 xyz | 206.1 c | 3031.2 w | 99.8 d | 2307.8 y | 184.3 ad | 2338.7 wz |
Dihydroartemisinic acid | 10052.6 a | nd | 1655.2 b | nd | 121.5 c | nd | 69.9 d | 28.8 x | 31.9 e | 2.1 x |
Deoxyartemisinin | 246.1 a | 215.1 x | 167.5 b | 216.2 xz | 29.4 c | 120.0 y | 12.82 d | 149.1 yz | 24.4 ce | 128.1 yz |
Artemisinic acid | 552.2 a | nd | 178.9 b | nd | 15.1 c | nd | 8.8 cd | 3.9 x | 2.6 e | 3.8 x |
Arteannuin B | nd | 24.2 w | 132.8 a | 386.8 xy | nd | 303.4 x | 6.3 b | 208.9 xz | 22.2 c | 209.9 xz |
ShAM, shoot apical meristem region; VL, mature vegetative leaves (1st four leaves located 15 cm below apex in all cases); BL, mature leaves during bolting stage; Buds, unopened floral buds from top 15 cm of plant; BuL, mature leaves during floral budding stage; Flowers, flowers from top 15 cm of plant; FL, mature leaves during full flower; PFL, mature leaves 2 weeks post flowering; nd, not detectable; letters a,b,c,d,e indicate statistical significance among shoot apical meristems and reproductive structures; letters w,x,y,z indicate statistical significance among mature leaves.