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. 2017 Jan 19;12(1):e0170440. doi: 10.1371/journal.pone.0170440

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© 2017 Hulatt 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 2 — (a) Growth trajectory and irradiance pattern of 16-day cultivations in high-NP and low–NP nutrient treatments. Fitted lines are from the logistic model and shaded areas indicate the standard error of the fitted values. (b) Absorbance ratio (A₆₈₀/A₅₄₀) of the cell suspension. (c) Broth pH and temperature. (d) Concentration of extracellular nitrate (mM∙L^-1). (e) Transmitted photon flux is the photon flux exiting the rear face of the reactor.