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. 2011 Aug 23;62(15):5607–5621. doi: 10.1093/jxb/err245

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© 2011 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 9. — Histochemical analysis of lignin in stem cross-sections of control and V. dahliae-inoculated cotton plants. Hand-cut cross-sections of stem were stained with Wiesner reagents for detecting lignin. Pink staining with the Wiesner reagent indicates the presence of p-hydroxycinnamyl aldehyde end groups in lignin. (A, B, E, F, I ,J) Sections from control and V. dahliae-inoculated G. barbadense (resistant) stems. (C, D, G, H, K, L) Sections from control and V. dahliae-inoculated G. hirsutum (susceptible) stems. (A–D) Sections from 16-day-old plants before inoculation. (E–H) Sections from control plants 14 d after treatment. (I–K) Sections from inoculated plants 14 d after treatment. Adjustments to magnification and illumination were made to allow optimal viewing of individual sections.