Degradation of the 32 kDa Photosystem II Reaction Center Protein in UV, Visible and Far Red Light Occurs Through a Common 23.5 kDa Intermediate

A characteristic 23.5 kD a degradation intermediate of the 32 kDa photosystem II reaction center protein is produced upon illumination in UV , visible and far red light. We suggest a similar degradation pathway is employed in these three spectral regions, even though the light can enter the system through different photo receptors.