[Comparative study of the photopotential and EPR signal arising after photooxidation of metal substituted pheophytins].

Autor: Evstigneev VB, Proskuriakov II, Olovianishnikova GD, Vozniak VM
Jazyk: ruština
Zdroj: Biofizika [Biofizika] 1978 Mar-Apr; Vol. 23 (2), pp. 379-80.
Abstrakt: Ethanolic solutions of Zn-, Cd-Phe a and b and Chl a and b with p-benzoquinone as electron acceptor have been studied at pH 4. In all systems positive photopotentials and singlet ESR lines of the pigment cation radicals are observed. A conclusion is made that the photopotential is only partly attributable to an electrode reaction of the cation radicals, to a greater extent arising due to unknown, non-radical particles.
Databáze: MEDLINE