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. 2018 Apr 26;9:557. doi: 10.3389/fpls.2018.00557

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Copyright © 2018 Shi, Melzer, Zheng, Benke, Stich and von Wirén.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Root growth and physiological root traits as affected by Fe and P nutritional regimes in B73 and Mo17. (A) Root anatomy and root concentrations of (B) Fe, (C) P, or root-to-shoot translocation rates of (D) Fe and (E) P as determined by collecting xylem sap. Plants were grown for 15 days in nutrient solution supplemented without Fe and P (Fe0P0), without Fe and with 100 μM P (Fe0P100), with 100 μM Fe and without P (Fe100P0) or with 100 μM Fe and 100 μM P (Fe100P100). Fe and P treatments were initiated after one week of preculture on full nutrient solution. Bars indicate means ± SD, n = 5. Different letters denote significant differences at p < 0.05.