Iron deficiency afflicts more than three billion people worldwide, and plants are the principal
source of iron in most diets. Low availability of iron often limits plant growth because iron
forms insoluble ferric oxides, leaving only a small, organically complexed fraction in soil
solutions. The enzyme ferric-chelate reductase is required for most plants to acquire soluble
iron. Here we report the isolation of the FRO2 gene, which is expressed in iron-deficient
roots of Arabidopsis. FRO2 belongs to a superfamily of flavocytochromes that transport …

A ferric-chelate reductase for iron uptake from soils | CiNii Research … A ferric-chelate
reductase for iron uptake from soils …