Investigation Of The Biosynthesis Pathway That Generates cis‐Jasmone

Abstract

Researchers have established that (+)‐7‐iso‐jasmonic acid ((+)‐7‐iso‐JA) is an intermediate in the production of cis‐jasmone (CJ); however, the biosynthetic pathway of CJ has not been fully described. Previous reports stated that CJ, a substructure of pyrethrin II produced by pyrethrum (Tanacetum cinerariifolium), is not biosynthesized through this biosynthetic pathway. To clarify the ambiguity, stable isotope‐labelled jasmonates were synthesized, and compounds were applied to apple mint (Mentha suaveolens) via air propagation. The results showed that cis‐jasmone is not generated from intermediate (+)‐7‐iso‐JA, and (+)‐7‐iso‐JA is not produced from 3,7‐dideydro‐JA (3,7‐ddh‐JA); however, 3,7‐didehydro‐JA and 4,5‐didehydro‐7‐iso‐JA were converted into CJ and JA, respectively.