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. 2016 Sep 2;11(9):e0162275. doi: 10.1371/journal.pone.0162275

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© 2016 Nisa-Martínez et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — (A) Intracellular free Mg²⁺ concentrations ([Mg²⁺]_i) of the S. meliloti 2011 wild-type strain and mutants for various magnesium transporters are shown, as well as their relative homing efficiency. (B) Intracellular free Mg²⁺ concentration are plotted.* indicates the bar corresponding to the corB mutant in which [Mg²⁺] was 50% lower than the wild type.