Oxidation of tyrosine by Papaver somniferum latex |
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Authors: | Margaret F. Roberts |
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Affiliation: | Department of Pharmacognosy, The School of Pharmacy, Brunswick Square, London WC1N 1AX U.K. |
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Abstract: | The polyphenolase complex isolated from the organelles which sedimented at 1000 g from the latex of Papaver somniferum was found to be composed of soluble and mernbrane-bound fractions. Partial purification resolved two polyphenolases, only one of which utilized tyrosine, a probable precursor of the alkaloid morphine. Activity of these two polyphenolase fractions was shown to change during the development of the capsule. |
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Keywords: | Papaveraceae poppy latex organelles polyphenolase tyrosine alkaloid biosynthesis. |
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