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. 2015 Jun 18;6:561. doi: 10.3389/fmicb.2015.00561

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Copyright © 2015 Sunda and Huntsman.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of (A) specific growth rate, (B) cellular Fe:C, and (C) the cellular iron uptake rate normalized to cell carbon in S. bacillaris in the present study at the two higher light intensities (500 and 160 μmol quanta m^-2 s^-1; solid triangles and squares, respectively) and in the coastal diatom T. pseudonana in previous experiments (Sunda and Huntsman, 2011) measured at high light intensity (500 μmol quanta m^-2 s^-1; open circles) and the same temperature and photoperiod. Data for S. bacillaris at high light (500 μmol quanta m^-2 s^-1; solid triangles) are for both low Cu and high Cu cultures ([Cu²⁺] = 0.16 and 16 pM, respectively).