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. 2016 May 19;26(7):709–720. doi: 10.1007/s00572-016-0706-3

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© The Author(s) 2016

Open Access This 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.

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Fig. 3 — Influence of arbuscular mycorrhizal (AM) fungal inoculation on phosphorus and nitrogen in tobacco shoots. The concentration (a) and content (b) of phosphorus (P) and nitrogen (N) (c, d) was measured in shoots of 8-week-old tobacco wild-type (WT) plants and transgenic lines with root-specific (W6:CKX1) or constitutive (35S:CKX1 and 35S:CKX2) reduction of cytokinin levels and inoculated with the AM fungus Rhizophagus irregularis strain RI, strain FM, or their co-inoculation (RI + FM) and compared to the respective non-AM (NAM) control plants. Values are means + SE. n = 10 for N and n = 5 for P. For each parameter, bars topped by the same letter are not significantly different (p < 0.05) according to Duncan’s multiple range test