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. 2016 Aug 12;17:625. doi: 10.1186/s12864-016-2990-x

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Zn, Cd and Fe concentration in 24-day-old transgenic (lines 4 and 15) and wild-type plants. Plants were exposed to 5 and 0.5 μM Zn (control) for 2 weeks and to 1 μM Cd for 11 days. Zn concentration in leaves (a); roots (b); leaves/roots Zn concentration ratio (c). Cd concentration in leaves (d); roots (e); leaves/roots Zn concentration ratio (f) of Cd-exposed plants. Fe concentration in leaves (g); roots (h); leaves/roots Fe concentration ratio (i). Values correspond to means ± SD (n = 6); those significantly different from the WT (Student’s t-test) are indicated by an asterisk (P ≤ 0.05)