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Phylloquinone, what can we learn from plants?
Author(s) -
Lochner K.,
Döring O.,
Böttger M.
Publication year - 2003
Publication title -
biofactors
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 94
eISSN - 1872-8081
pISSN - 0951-6433
DOI - 10.1002/biof.5520180209
Subject(s) - membrane , electron transport chain , redox , chemistry , radical , plasma , electron flow , biophysics , biochemistry , photosynthesis , biology , organic chemistry , physics , quantum mechanics
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.