Plastoquinone B
- 1 April 1966
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 41 (4), 696-700
- https://doi.org/10.1104/pp.41.4.696
Abstract
A compound found in spinach and other higher plants previously referred to as R 263 has now been found to be a breakdown product of plastoquinone B. This quinone, PQ B, is found with 8 other quinones in spinach chloroplasts. These 9 quinones are PQ A, PQ B, PQ C, PQ D (7, 8, 15) Vitamin K1 (10, 12), an unknown naphthoquinone (13) and α-, β- and γ-tocopherylquinones (7, 12). An improved method for purification of plastoquinone B is described. Previous confusion of this compound with other quinoid material on silica gel is described and corrected RF values are given. The activity of PQ B is similar to the activity of PQ C in restoration studies of the photo-reduction of ferricyanide and indophenol.This publication has 9 references indexed in Scilit:
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