Biosynthesis of the Furanoacetylene Phytoalexin Wyerone in Vicia faba
نویسندگان
چکیده
Feeding experim ents using l3C-labelled sodium acetate precursors in CuCl2-treated broad bean (Vicia faba) cotyledons have demonstrated that the furanoacetylene phytoalexin wyerone is biosynthetically derived from seven intact acetate units. A further experiment using sodium [2H 3]acetate indicated the head of the chain, and showed the chain is analogous to that of a fatty acid precursor, any chain shortening process from postulated C18 precursors occurring from the carboxyl end. Incorporations of oleate and linoleate were, however, regarded as insufficient to prove the involvem ent of these compounds in the biosynthetic pathway.
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