Figure 4.

Change in Os-RPA1 transcript levels in the intercalary meristem during treatment of stem sections with 50 μM GA₃ and during submergence of whole plants. (A) Northern blot analysis of RNA from the intercalary meristem of stem sections treated with GA₃ for the periods in hours indicated above the lanes. The same blot was hybridized to Os-RPA1, the histone H3 cDNA probe, and E37. (B) Northern blot analysis of RNA from the intercalary meristem of plants submerged for the periods in hours indicated above the lanes. The same blot was hybridized to Os-RPA1, the histone H3 cDNA probe, and E37. (C) Quantitative analysis of the Northern blot shown in A using a PhosphorImager. All values were normalized to the E37 loading control. (D) Quantitative analysis of the Northern blot shown in B.