质体醌 B
Plastoquinone B.
机构信息
Department of Biological Sciences, Purdue University, Lafayette, Indiana.
出版信息
Plant Physiol. 1966 Apr;41(4):696-700. doi: 10.1104/pp.41.4.696.
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 K(1) (10, 12), an unknown naphthoquinone (13) and alpha-, beta- and gamma-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 R(F) 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.
菠菜和其他高等植物中发现的一种先前被称为 R263 的化合物，现在被发现是质体醌 B 的分解产物。这种醌，即 PQB，与菠菜叶绿体中的其他 8 种醌一起存在。这 9 种醌分别是 PQA、PQB、PQC、PQD（7、8、15）维生素 K1（10、12）、一种未知的萘醌（13）以及α-、β-和γ-生育酚醌（7、12）。描述了一种改良的质体醌 B 纯化方法。先前在硅胶上对该化合物与其他类醌物质的混淆进行了描述和纠正，并给出了 R（F）值。在铁氰化物和吲哚酚光还原的修复研究中，PQB 的活性与 PQC 的活性相似。
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