Fig. 1.

KNU and CLV3 expression patterns. (A–C) Confocal observation of doubly transgenic pKNU:KNU-VENUS (red) and pCLV3:GFP-ER (green) flowers in stage 6 (A), stage 7 (B), and stage 8 (C). (D–K) CLV3 activity in wild-type (D–G) and knu-2 (H–K) floral buds in early stage 6 (D and H), late stage 6 (E and I), stage 7 (F and J), and stage 8 (G and K) (Scale bars, 50 µm). The insets in A–K are the close-up views.