Figure 1.

The retarded growth phenotype of ntrc is suppressed by pgr5 under short-day conditions. (A) Growth phenotypes of wild type (Col-0 and Col-5) and mutant (ntrc, pgr5 and pgr5 ntrc) plants grown on different photoperiods (100 µmol photons m⁻² s⁻¹): 8 h light/16 h dark (short-day, 6-week-old plants), 12 h light/12 h dark (5 weeks old), 16 h light/8 h dark (long-day, 3 weeks old), and under lighting conditions: high light (HL, 500 µmol photons m⁻² s⁻¹, 2 weeks old) and fluctuating light (FL, 50 µmol photons m⁻² s⁻¹ for 1 min and 500 µmol photons m⁻² s⁻¹ for 5 min, 5 weeks old). The scale bar at the bottom indicates 1 cm. (B) Fresh weight averages of plants grown as in (A). Error bars correspond to SDs for n ≥ 10. Letters indicate significant differences, as assessed with the Tukey test and a confidence interval of 95%.