Fluorescence and Photochemical Investigations of Phytochrome in Higher Plants
Figure 7
Fluorescence emission spectra (85 K, nm) of phytochrome in coleoptiles (right) and roots (left) of etiolated wheat taken immediately after darkness, when all the pigment is in the Pr form, and after saturating red ( nm) illumination at 85 K partially converting Pr into photoproduct lumi-R stable at low temperatures (photoequilibirum Pr lumi-R). Note the differences in the position of the bands and in the extent of the Prlumi-R photoconversion, , in the case of roots and coleoptiles. (From [27]).
