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. 2015 Dec 9;9:66. doi: 10.1186/s13065-015-0141-0

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© Chen et al. 2015

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 — Microscopic characteristics of P. quinquefolium. I Under normal light microscope, II under fluorescence mode with dichromatic mirror. a, b represented the main root and branch root of Pq1; c–e represented Pq6, Pq8 and Pq10 respectively. ck cork, ct cortex, ph phloem, rc resin canals, cb cambium, xy xylem, sx secondary xylem, px primary xylem, pt pith