THE BIOSYNTHESIS OF HYDROXYBENZOIC ACIDS IN HIGHER PLANTS
Abstract
Radioactive para-hydroxybenzoic, vanillic and syringic acids were shown to be synthesized in a variety of plants from the corresponding hydroxycinnamic acids labelled in the beta-position. Decarboxylation of the hydroxybenzoic acids indicated that nearly all the activity was contained in the carboxyl carbons. In addition to the formation of C6-C1 acids by removal of a 2- carbon fragment from C6-C3 acids, some species were capable of O-methylating protocatechuic to vanillic acid or hydroxylating it to yield gallic acid. Demethoxylation of sinapic and dehydroxylation of caffeic acid occurred in some species. Ortho hydroxybenzoic acids were shown to arise from phenylalanine and cinnamic acid.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 17, 1963
- Accession Number
- AD0445236
Entities
People
- A. C. Neish
- Dekang Chen
- G. H. N. Towers
- R. K. Ibrahim
- Said Z. El-basyouni
Organizations
- National Research Council Canada