Phylloquinone, what can we learn from plants?

Issue title: The Third Conference of the International CoQ10 Association

Article type: Research Article

Authors: Lochner, K. | Döring, O. | Böttger, M.

Affiliations: Biozentrum Klein Flottbek, University of Hamburg, Ohnhorstrasse 18, D-22609 Hamburg, Germany

Note: [] Corresponding author: [email protected]

Abstract: The plant plasma membrane contains redox proteins able to mediate a trans-membrane electron flow. This electron flow might be responsible for the generation of the active oxygen species observed as a reaction to pathogen attack or stress. Vitamin K_{1} could be identified as a possible lipid soluble electron carrier in plant plasma membrane preparations. Such a function would be analogous to coenzyme Q in animal plasma membranes. What we are going to outline in this contribution is a concept of how the electron transport system of the plant plasma membrane could interact with quinones, thus contributing to the metabolism of free radicals in plants.

Journal: BioFactors, vol. 18, no. 1-4, pp. 73-78, 2003