Figure 8.

Room Temperature Fluorescence Spectra of Iron-Starved Unquenched and Quenched Cells.

Room temperature fluorescence spectra of dark-adapted (solid line) 12 d iron-starved wild-type cells ([A] and [D]), 48 d iron-starved wild-type cells ([C] and [F]), and 12 d iron-starved ΔIsiA cells ([B] and [E]) and after 5 min of high-intensity blue-green light illumination (740 μmol photons m⁻² s⁻¹) (dotted line) at 3 μg chlorophyll/mL. Excitation was performed at 600 nm ([A] to [C]) and at 430 nm ([D] to [F]).