PIL5 Requires ABI3 to Activate the Expression of SOM Efficiently.
(A) The expression levels of SOM mRNA (SOM/PP2A) in the wild type, the pil5 and abi3-sk11 mutants, and the abi3-sk11 pil5 double mutant. Seeds were imbibed for 12 h. The inset indicates the fold difference in SOM mRNA expression between the phyBoff and phyBon conditions (sd, n = 3). Student’s t test: **P < 0.01.
(B) Expression levels of PIL5 mRNA (PIL5/PP2A) in the wild type, the pil5 and abi3-sk11 mutants, and the pil5 abi3-sk11 double mutant (sd, n = 3).