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Transcription levels of Fe-deficiency responsive genes in acs2 and acs6 mutant plants. Ten day old seedlings cultured in swimming medium were transferred to Fe-deficient medium for 7 days and sampled for RNA extraction. All values are expressed relative to the expression level under Fe-sufficient conditions (control—set to 1.0) as appropriate. Data are shown as the mean ±SEM (n = 3). Column marked with “*” indicate a significant difference (P < 0.05).
