Figure 5.

Disruption of EXB by Localized Expression of Chimeric EXB1 Repressor Led to Compromise of Shoot Branching.

(A) Schematic representation of the pEXB1-EXB1-SRDX construct.

(B) Phenotypes of the wild type and two independent lines of pEXB1-EXB1-SRDX transgenic plants.

(C) to (E) Close-up views of rosette leaf branches in the cyan squares of the corresponding plants in (B). Bars = 1 cm in (B) and 1 mm in (C) to (E).

(F) Statistical analysis of AMs or branches in each leaf axil of 45-d-old wild-type or pEXB1-EXB1-SRDX transgenic plants. Each column represents one independent plant and each row presents the position of the axils. The typical leaf axil morphologies represented by the different color grids are shown at the right. The white grids represent the absence of AMs, the yellow ones represent the AMs with leaf primordia, the green ones indicate the buds with leaves, the orange ones indicate branches with flower buds, and the red ones represent branches with high order branches. The number in the grids represents the number of branches.

(G) and (H) Representative leaf axils of the wild-type plant and pEXB1-EXB1-SRDX-22.

Bars = 100 μm for (F) to (H) except that indicated near the bars.