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. 2020 Feb 27;11:217. doi: 10.3389/fpls.2020.00217

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Copyright © 2020 Luo, Xiao, Yao, Wu, Yang, Ismail and Zhang.

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(s) 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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Overexpression of CAL2 increased Cd accumulation in rice. Transgene-negative control ZH11 and 35S:CAL2-mRFP transgenic plants were grown in a heavy metal contaminated paddy field until ripening. Heterologous overexpression of CAL2 increased cadmium (Cd) accumulation in rice straws (A) and grains (B). (C,D) Essential mineral nutrients accumulation in (C) rice straws and (D) grains. Data are means ± SDs of three independent biological replicates. Significant differences from ZH11 were determined by Student’s t-test (^∗P < 0.05).