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. 2017 Jul 11;17:121. doi: 10.1186/s12870-017-1071-x

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© The Author(s). 2017

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 — Macroscopic adventitious rooting response on TCLs from various genotypes under different hormonal treatments. a–g Images under the stereomicroscope at the end of the in vitro culture (day 15) with IBA (10 μM) (a, d, f, g), IBA (10 μM) + Kin (0.1 μM) (c), IAA (10 μM) (b, e) or under HF (Insets in a, d, f, g). a Col-0 TCLs showing a poor callus formation and a lot of elongated ARs with hairs. b Col-0 TCLs with elongated hairy ARs, and high callus formation. c Col-0 TCLs with ARPs (arrow) and no elongated AR, and callus. d ech2ibr10 TCLs with a poor number of highly elongated ARs, and a very reduced callus formation. e ech2ibr10 TCLs with callus and elongated ARs. f–g wei2wei7 (f) and lax3aux1 (g) TCLs with a very few number of ARs which were not elongated. Insets in a, d, f, and g show the absence of AR formation in the HF-treated control explants. Bars = 1 mm (a-c, e-g, and insets in a, d, f, g), 2 mm (d)