Detection of the AP1-GFP protein in <i>hua1 pep</i> gynoecia.

<p>A) Apical region of a mildly affected gynoecium with recognizable pistil morphology. Specific AP1-GFP signal is detected in some style cells. B) Fourth whorl organs of a pre-anthesis flower displaying a severe sepaloid phenotype. C) Adaxial (inner) view of a manually open pistil with severe sepaloid transformations, but containing some developing ovules (do). D) Detail of a fourth whorl organ from panel D showing nuclear-localized AP1-GFP. A cell has been outlined with a dotted line and the nucleus marked with an arrow. Scale bars: 25 μm (A), 50 μm (B and C) and 10 μm (D).