On the Impossibility of an OH-Radical Model for Photosynthetic Water Oxidation / Über die Unmöglichkeit eines OH-Radikalmodells für die photosynthetische Wasseroxidation

Abstract

If it is assumed that the oscillating O₂ flash yield sequence of algae and chloroplasts predominantly reflects an inherent property of the O₂ evolving system of the photosynthetic apparatus it is shown that the OH-radical model (O₂ production by recombination of four OH radicals) is contradictory to the experimental results because it predicts an aperiodic O₂ flash yield sequence. Several experimental facts already known strongly indicate that the OH-radical model is not consistent with the kinetic model for O₂ evolution of K_OK et al. either.