<i>Por</i> mRNA transcript and POR protein abundance under moderate diurnal light (<sub>200</sub>L/D) transitioning to constant illumination (<sub>200</sub>L/L).

<p>(a) Fold-change in <i>por</i>1 and <i>por</i>2 mRNA transcript abundance measured by RT-qPCR. (b) POR1 density per μg protein measured by Western blotting (bars; error bars show standard deviation) and normalized to cellular protein levels to attain POR1 density per cell (area chart). Representative blot data are shown below each sampled time point. (c) As in (b) but for POR2.</p>