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. 1979 Dec;64(6):1032–1038. doi: 10.1104/pp.64.6.1032

Metabolism of l-Tyrosine to 4-Hydroxybenzaldehyde and 3-Bromo-4-Hydroxybenzaldehyde by Chloroplast-containing Fractions of Odonthalia floccosa (Esp.) Falk 1

Steven L Manley a,2, David J Chapman a
PMCID: PMC543186  PMID: 16661087

Abstract

The biosynthesis of 4-hydroxybenzaldehyde and 3-bromo-4-hydroxybenzaldehyde from l-[U-14C]tyrosine has been demonstrated in chloroplast-containing fractions obtained by differential and isopycnic centrifugation from the marine red alga Odonthalia floccosa. Surfactant and high speed centrifugation studies indicate that the biosynthetic pathway involves a particulate enzyme system, possibly located on the thylakoid membranes. The following scheme, based upon identification of labeled 14C-intermediates, is proposed for the formation of aldehydes: l-tyrosine → 4-hydroxyphenylpyruvic acid → 4-hydroxyphenylacetic acid → 4-hydroxymandelic acid → 4-hydroxybenzaldehyde → 3-bromo-4-hydroxybenzaldehyde.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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