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. 2021 Apr 9;12:657156. doi: 10.3389/fpls.2021.657156

FIGURE 4.

FIGURE 4

The expression of AaMYB17 affects A. annua glandular trichome initiation. The glandular trichomes on the adaxial side of mature leaves derived from (A) wild-type (CK) plants, (B) OE-AaMYB17 transgenic A. annua plants, and (C) AaMYB17-RNAi transgenic A. annua plants (bars, 200 μm). Expression level of AaMYB17 in the A. annua leaves in (D) OE-AaMYB17 transgenic A. annua plants and (E) AaMYB17-RNAi transgenic A. annua plants. (F) Glandular trichomes density of mature leaves derived from CK and AaMYB17 transgenic plants. (G) High-performance liquid chromatography (HPLC) analysis of the artemisinin content (mg g–1 leaf DW) in transgenic A. annua plants. Data are given as means ± SD (n = 3) (**P < 0.01; Dunnett’s test).