Figure 1.

Sequences downstream of −156 from the transcription start confer a response to both ABA and phytochrome action. Following bombardment with the NPR1–354 or NPR1–156 constructs, intermittent R-grown L. gibba were treated with D (black bars), 2 min of R (white bars), or 2 min of R plus 10 μm ABA (cross-hatched bars); D and R samples received water as a control. Bombarded plants were returned to D for 16 to 18 h before reporter gene activity was assayed. The normalized ratios of reporter LUC to internal standard GUS activities are reported as relative activities; se values are shown.