Figure 15.

Developmental control of CYP74A.

Arabidopsis thaliana (A-I, K) or Nicotiana tabacum (J) plants grown under sterile conditions and harboring the translational CYP74A promoter:uidA fusion.

(A) Overview of a 3-week old plant. (B) Leaf base and stipule of a bract of the inflorescence axis. (C) Detached leaves of the plant shown in A arranged in the order of development (from left to right: cotyledons to younger leaves), necrotic areas marked by arrows. (D)(E) Developing flower buds. (F) Flower at the stage of fertilization. (G) Close-up of anther. (H)(I) Abscission zone scars after shedding of flower organs. (J) Pollen grains of transgenic tobacco. (K) Close-up of the bases of floral organs. Image reprinted from Kubigsteltig et al. (1999) with permission from Springer.