Figure 3.

Effects of uga mutations on the expression of GAPA in mature plants. A, Total RNAs from light-grown 4-week-old plants (L) were compared with those of plants that were light grown for 4 weeks and then dark adapted for 5 d (D) were isolated and analyzed by northern-blot analysis. Representative data are from gels loaded with 5 μg RNA lane⁻¹ and probed with radiolabeled GAPA or TUB. B, Each northern-blot analysis was repeated three times and quantified as described in Figure 2. The average densitometric value for light-grown AG5G is taken as 1. Error bars = sds.