... product,one of the photosynthetic reaction center subunits of photosystem I, upon photoinhibition. Photosynth Res53, 55–63.22 Tjus SE, Moller BL & Scheller HV (1999) Photoinhibi-tion of photosystem ... oxygen suppressed the photodamage of PSI submembrane fractions [17].However, the protective role of specific active oxy-gen scavengers against photo -induced changes in the photosystems was discussed ... insight into the photo -induced changes in PSI. The submembrane particles used con-tain all the components of PSI, including the cyto-chrome b6 ⁄ f complex and plastocyanin [31,32]. In the present...