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. 2017 Mar 3;8:272. doi: 10.3389/fpls.2017.00272

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Copyright © 2017 Zhao, Wang, Zhou, Wang, Zhang, Wang, Pan and Xu.

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) or licensor 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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Manganese (Mn) toxicity inhibited primary root (PR) growth in Arabidopsis. Five-day-old Arabidopsis seedlings grown in 1/2 MS medium were transferred to fresh media containing 2–12 mM MnCl₂ for 2 days. (A) The PR length was measured after 2 days of treatment. Image of GUS staining (B) and the relative GUS activity (C) of 5-day-old CYCB1;1:GUS seedlings exposed to 4 mM MnCl₂ for 6, 24, and 72 h. Different letters indicate that they were significantly different at P < 0.01 by Tukey’s test. Error bars represent the ±SD.