CIP1 is expressed in the photosynthetic cells and in the vasculature.
The promoter activity of CIP1 can be induced by osmotic stress and ABA.
The cip1 loss-of-function mutant has ABA-insensitive phenotypes.
RNA-Seq shows that cip1 has reduced expression of abiotic stress responsive genes.
Expression of ABA biosynthesis genes is induced in cip1.