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Iron accumulation in soil-grown Arabidospsis. (a) Fe content in soil, root, and shoots analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES); (b) magnetization curves from superconducting quantum interference device (SQUID) analysis of plant roots. Insert of (b) shows higher magnification of rectangular regions. Error bar represents standard deviation (n = 3). Differences were detected by Student’s t-test (* p < 0.05).
