Figure 7.

Effects of UV-B treatment on rosette biomass and seed yield of wild-type and transgenic lipase-suppressed Arabidopsis plants grown under sublethal UV-B stress from 3.5 weeks of age until seed maturation. A, Rosette biomass at various stages of development for plants grown under control conditions; B, rosette biomass at various stages of development for plants treated with UV-B (vertical dotted line indicates the initiation of UV-B treatment at 3.5 weeks of age); C, seed yield from 8-week-old plants grown under control conditions and treated with UV-B. WT, wild type; 4-2A-5, 3-2C-5, and 1-4C-8, transgenic lines. Means ± se for n = 8 are shown.