M. Vacha et al., LOW-TEMPERATURE OPTICAL SPECTROSCOPY OF PHOTOSYSTEM-2 PARTICLES - AN INFLUENCE OF PHOTOSYNTHETIC ACTIVITY, Photosynthetica, 27(1-2), 1992, pp. 139-144
Low temperature phosphorescence, fluorescence and transient hole burni
ng spectra of the photosystem 2 particles isolated from the cyanobacte
rium Synechococcus elongatus were measured. The role of photosynthetic
activity was estimated by comparison of these spectroscopic methods.
A model explaining chlorophyll fluorescence changes and both phosphore
scence quantum efficiency increase and transient hole burning efficien
cy decrease connected with chemical or heat photosynthetic deactivatio
n is presented.