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. 2016 Oct 21;9:225. doi: 10.1186/s13068-016-0639-2

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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. 2 — Iron contents in shoot biomass harvested at senescent stage from extracellular ferritin-overexpressing (FerEX) transgenic Arabidopsis plants. The plants were H₂O-watered (a) or irrigated with 2 mM Fe-EDDHA (b) twice a week during plant growth. Data are presented as the mean (±SE) of five replicates. ** indicates statistical significance of p < 0.01 from the empty vector (EV) controls. FerEX(1) and (2) represent FerEX-8a and -10g, respectively