A DOMON domain-cytochrome b561 protein acts as a ferric reductase in iron homeostasis and impacts primary root growth under phosphate deficiency

An Arabidopsis mutant in the ER chaperones Calnexins has shown reduced primary root growth under phosphate deficiency. In order to determine which protein(s) could be implicated in this phenotype, we have performed a proteomic experiment to identify proteins differentially abundant in roots of the calnexin mutants versus wild-type.