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Fe-deficiency responses and Fe content in wild type and irm1: (A) northern blot analysis of Fe uptake genes FRO2 and IRT1 in roots of seedlings exposed to Fe deficiency (−) and sufficiency (+); (B) contents of Fe, Zn and Mn in leaves of seedlings growing on soil for 2 weeks; (C) Fe content in seeds. Data are shown as means ± standard error of the mean (n = 4).
