STUDIES ON PHOTOPHOSPHORYLATION. X. MECHANISM OF "OXIDATIVE PHOTOPHOSPHORYLATION".

Abstract

The light-induced adenosine triphosphate(ATP) formation by isolated chloroplasts in the presence of reduced indophenol dyes was first discovered by Krogmann in 1959.There were two observations which made the same author to exclude it from the natural inference that the reduced dye is first oxidized and then serves as a cyclic cofactor like, e.g., PMS:(1)lack of ATP formation during the photoreduction of indophenol dyes, and(2)the oxygen-dependency of ATP formation in the reduced indophenol dye system. Hence this type of photophosphorylation has since been called“oxidative photophosphorylation”...