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
. 1986 Apr;80(4):838-42.
doi: 10.1104/pp.80.4.838.

Partial Purification and Characterization of the Quinol Oxidase Activity of Arum maculatum Mitochondria

W D Bonner  1 , S D Clarke, P R Rich
Affiliations

Partial Purification and Characterization of the Quinol Oxidase Activity of Arum maculatum Mitochondria

W D Bonner et al. Plant Physiol. 1986 Apr.

Abstract

The menadiol oxidase activity of Arum maculatum mitochondria has been solubilized and fractionated. A preparation has been obtained which has an increased specific activity and a greatly decreased polypeptide composition when compared to the mitochondria. This preparation retains normal inhibitor sensitivities in that the oxidation of menadiol remains insensitive to cyanide and is inhibited by aromatic hydroxamates. Metal analyses of the preparation showed that only iron was closely correlated with the oxidase activity. No unusual lipid components were detected in the preparation. The results are discussed in relation to chemical quinol oxidation mechanisms and to several recent hypotheses concerning the nature of the higher plant alternative oxidase.

PubMed Disclaimer

References

    1. Plant Physiol. 1981 Jan;67(1):5-8 - PubMed
    1. Plant Physiol. 1980 Sep;66(3):488-93 - PubMed
    1. Biochem J. 1980 Jan 15;186(1):309-16 - PubMed
    1. Anal Biochem. 1976 Sep;75(1):168-76 - PubMed
    1. Arch Biochem Biophys. 1983 Sep;225(2):630-9 - PubMed

LinkOut - more resources