After publication of this article  it was noticed that the picture of a plant that was grown without DEX (and thus intended to be a control), was inadvertently inserted in panel 4C which should represent a DEX-treated plant. The correct version of Fig. 4 can be seen in the next page.
Giulia C, Samantha F, Chiara T, Massimo G, Lucio C. BMC Plant Biol. 2016;16(1):172.
Open Access This 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.