Figure 5.

Homozygous ap2m Mutant Plants Exhibit Abnormal Floral Organ Development.

(A) to (J) Inflorescence ([A] and [B]), flowers ([C], [E], [G], and [I]), and stigmas and anthers ([D], [F], [H], and [J]) from wild-type (WT; [A], [C], and [D]), homozygous ap2m mutant ([B], [E], to [H]), and AP2M-GFP ap2m plants ([I] and [J]). Higher magnifications of the floral structures with dotted squares in (A) and (B) are shown in (C), (E), and (G). In (D), (F), (H), and (J), asterisks, arrowheads, and arrow indicate stigmas, dehisced anthers, and an undehisced anther, respectively. The sizes of the scale bars in each row are indicated in the panels on the right.

(K) Lengths of pistils, long and short stamens, petals, and sepals from wild-type, homozygous ap2m mutant, and AP2M-GFP ap2m plants. The means + sd from 10 pistils, 40 long stamens, 20 short stamens, 40 petals, and 40 sepals (total 10 flowers) are shown. For petals and sepals, lengths of the long (a) and short (b) axes are shown. *P < 10⁻³ versus wild-type and AP2M-GFP ap2m plants and **P < 10⁻² versus wild-type and AP2M-GFP ap2m plants, t test.