1967•Zeitschrift für Naturforschung BOpen access

Further evidence for the existence of cyclic and non-cyclic photophosphorylation in vivo by means of desaspidin and DCMU

W. Urbach, W. Simonis

Abstract

The effect of desaspidin and DCMU on photophosphorylation in intact cells under aerobic and anaerobic conditions has been studied. Desaspidin is mainly effective in N2 and inhibits under these conditions the DCMU-insensitive cyclic photophosphorylation in vivo like antimycin A. The inhibition of the phosphorylation in light by DCMU is stronger in N2 than in air which suggests a partial existence of oxydative phosphorylation during illumination.

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Key concepts: Photophosphorylation, DCMU, Antimycin A, In vivo, Phosphorylation, Chemistry, Biophysics, Biochemistry