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. 2011 Nov 4;63(2):859–870. doi: 10.1093/jxb/err314

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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/3.0), 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. 1. — Comparison of iron-deficiency responses between M. xiaojinensis and M. baccata. (A) Observed iron-deficiency symptoms in M. xiaojinensis and M. baccata. (a) M. xiaojinensis supplied with 4 μM Fe after 1 d; (b) M. xiaojinensis supplied with 4 μM Fe after 6 d; (c) M. baccata supplied with 4 μM Fe after 1 d; (d) M. baccata supplied with 4 μM Fe after 6 d. (B) Rhizosphere pH and root Fe (III) reductase activity measured in split-root systems of M. xiaojinensis and M. baccata. One portion of the root system were transferred to the Fe-deprivation (0 μM Fe) solution, with the other portion remaining supplied with normal Fe. (a) Rhizosphere pH measured in split-root systems of M. xiaojinensis. (b) Rhizosphere pH measured in split-root systems of M. baccata. (c) Root Fe (III) reductase activity measured in split-root systems of M. xiaojinensis. (d) Root Fe (III) reductase activity measured in split-root systems of M. baccata. Values are means based on at least ten plants; bars represent SD. FW, fresh weight.