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. 2011 May 16;62(12):4391–4398. doi: 10.1093/jxb/err158

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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. 5. — Influence of double substitution of NPA motifs and the ar/R selectivity filter of AtNIP5;1 on the transport activity for silicic acid (A), arsenite (B), boric acid (C), and water (D). Transport activity was determined for the water-injected negative control (H₂O), native AtNIP5;1 (NPS, NPV, AIGR), or S139A-V250A and A117G-I236S (NPA, NPA, GSGR). Data are means ±SD (n=3) for (A) and (B), (n=5–6) for (C) and (D). Different letters above the columns indicate statistically significant differences at P <0.05 by Tukey's test.