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Leaf initiation defects in arf5 arf7 and arf5 arf3 double mutants. (a–c) arf5, (d–f) arf5 arf7 double mutants, (g–i) arf5 arf3 double mutants. Shoot apices from (a,d,g) are enlarged in (b,e,h). Ages are, 21 DPI (a,d,g), 40 DPI (c) and 90 DPI (f,i). Arrows indicate emerging leaf primordia (b), emerging lateral dome (e), dome-like structures (i). Size bars, 300 µm (a,c,d,f,g,i), 100 µm (b,e,h).
