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. 2017 May 9;93(5):fix059. doi: 10.1093/femsec/fix059

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© FEMS 2017.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Mean of growth parameters across the N:P supply ratios. Semilogarithmic profiles of (a) maximal optical density (OD_max), (b) cellular dry weight at OD_max and (c) maximal linear growth rate (μ_lin) for P. inhibens as a function of the external N:P ratio. The blue line displays the calculated mean (based on 2D LOWESS fit) for the experimental data (black dots). The vertical red line marks the Redfield N:P ratio of 16:1. The blue shaded area delimits the approximate range of N:P supply ratios (∼50–120), at which the mean of the studied growth parameters was maximal.