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. 2009 Jan 16;103(5):735–747. doi: 10.1093/aob/mcn266

Fig. 3.

Fig. 3.

Immuno-localization of free IAA in leaf cross-sections of A-2 and EMB-2 plants of the interspecific hybrid Helianthus annuus × H. tuberosus. Immuno-reaction evidenced as purple-violet staining. (A) Leaf of the non-epiphyllous A-2 clone. (B) Higher magnification of (A); arrows indicate labelled chloroplasts. (C) A non-epiphyllous (NEP) leaf of the EMB-2 clone. (D–H) Epiphyllous leaves (EP) of the EMB-2 clone. Arrows in (D) and (E) indicate strongly labelled cells. (G, H) Immuno-stained embryogenic structures from the first cell divisions. Scale bars: (A) = 35 µm; (B) = 15 µm; (C) = 40 µm; (D) = 20 µm; (E) = 30 µm; (F) = 8 µm; (G) = 12 µm; (H) = 15 µm.