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. 2019 Aug 1;20(15):3772. doi: 10.3390/ijms20153772

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Histochemical localization of DR5::GUS and indole-3-acetic acid (IAA) contents of tobacco under different Se and Cd concentration supply conditions. (A) Histochemical localization of DR5::GUS in root tips of tobacco under different Se (Ⅳ) and Cd (Ⅱ) concentration supply conditions; (B,C) IAA content of the shoots and roots under different Se (Ⅳ) and Cd (Ⅱ) concentration supply conditions. 14-days-old seedlings (DR5::GUS transgenic tobacco) were grown in pot with sand under different Se (0, 10, 50 μM) and Cd (0, 20, 50 μM) concentrations for 21 days. Se0: no Se; Se10: Se, 10 μM; Se50: Se, 50 μM; Cd0: no Cd; Cd20: Cd, 20 μM; Cd50: Cd, 50 μM. Shown are mean ± SD from five biological replicates. Different letters indicate significant differences (p < 0.05).