Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1966 Apr;41(4):696-700.
doi: 10.1104/pp.41.4.696.

Plastoquinone B

M D Henninger  1 , R Barr, F L Crane
Affiliations

Plastoquinone B

M D Henninger et al. Plant Physiol. 1966 Apr.

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 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.

PubMed Disclaimer

References

    1. Nature. 1964 Aug 1;203:524-5 - PubMed
    1. Biochem Biophys Res Commun. 1962 Jul 19;8:294-8 - PubMed
    1. Plant Physiol. 1964 Jul;39(4):598-602 - PubMed
    1. Biochim Biophys Acta. 1965 Jul 22;102(2):614-8 - PubMed

LinkOut - more resources