Fig. 5.

Silencing GA 20-OXIDASE2 expression delays flowering of Arabidopsis exposed to a single FR-enriched LD from incandescent lamps. Comparisons involve two GA 20-OXIDASE2 silencing lines, hpAtGA20ox2#2 (open square) and #3 (open triangle); the wild type, Columbia (open circle); a non-silenced transgenic line #12 (inverted open triangle); and ga5-3 (filled circle), a null mutant recently renamed as ga20ox1-3. There was no flowering in SD plants at 30 d as indicated by the horizontal line. In (B) days to flowering is shown as the mean and SE at 50% flowering (n=10–14). The LD effect on petiole elongation of the same plants is redrawn with the permission of Hisamatsu et al. (2005).