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 …

The Arabidopsis FRO2 gene encodes the low-iron-inducible ferric chelate reductase
responsible for reduction of iron at the root surface. Here, we report that FRO2 and IRT1, the …

The Arabidopsis FRO2 gene encodes the iron deficiency-inducible ferric chelate reductase
responsible for reduction of iron at the root surface; subsequent transport of iron across the …

The frd3 mutant of Arabidopsis exhibits constitutive expression of its iron uptake responses
and is chlorotic. These phenotypes are consistent with defects either in iron deficiency …

Frequently, crop plants do not take up adequate amounts of iron from the soil, leading to
chlorosis, poor yield and decreased nutritional quality. Extremely limited soil bioavailability …

Iron is essential for plants and plays critical roles in important processes such as
photosynthesis and respiration. While our understanding of molecular mechanisms involved …

Abstract Soybean (Glycine max Merr.) production is reduced under iron-limiting calcareous
soils throughout the upper Midwest regions of the US. Like other dicotyledonous plants …

Although iron is abundant in soils (1–6%), it is often unavailable to plants because its
solubility is dependent on p H and controlled by the low solubility of ferric oxides. Iron …

To acquire iron, many plant species reduce soil Fe (III) to Fe (II) by Fe (III)-chelate reductases
embedded in the plasma membrane of root epidermal cells. The reduced product is then …

Iron, despite being an essential micronutrient, becomes toxic if present at high levels. As a
result, plants possess carefully regulated mechanisms to acquire iron from the soil. The ferric …