Abstract
QUINONES have previously been implicated as oxidation-reduction carriers in the photosynthetic electron transport system on the assumption that chloroplasts of higher plants contained vitamin K11–3. It has now been shown that chloroplasts contain little or no vitamin K1 but that another quinone, 2,3-dimethyl-5-solanesyl-benzoquinone, is present in relatively large amounts4–6. This quinone is known as plastoquinone, Q255 and Kofler's quinone.
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REDFEARN, E., FRIEND, J. Oxidation-Reduction Reactions of Plastoquinone in Isolated Chloroplasts. Nature 191, 806–807 (1961). https://doi.org/10.1038/191806a0
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DOI: https://doi.org/10.1038/191806a0
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