Iron uptake (IMAGE)

Leibniz Institute of Plant Genetics and Crop Plant Research

Iron uptake

Caption

Coumarin biosynthesis in roots responds to environmental pH conditions. Under slightly acidic conditions (low pH), plants produce the superior ferric iron (Fe3+) reductant sideretin, which complements Fe3+ reduction by the membrane-bound reductase FRO2. At neutral to alkaline conditions, fraxetin is synthesized to maintain the mobilization of poorly soluble iron sources for further reduction by FRO2.

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IPK Leibniz Institute

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