title: Production of chrysanthemic acid and pyrethrins by tissue cultures ofChrysanthemum cinerariaefolium.
abstract: Tissue cultures ofChrysanthemum cinerariaefolium were established, and then used to study the production of pyrethrin insecticides, and their precursor chrysanthemic acid. Callus cultures and root-differentiated cultures did not contain pyrethrins whereas shoot differentiated callus was found to produce the pyrethrins. Chrysanthemic acid was isolated by extraction from callus cultures, and feeding(14)C-labelled chrysanthemic acid to a cell suspension ofC. cinerariaefolium established that the acid accumulates largely as a glucoside ester.
authors.affiliation: Department of Chemistry, The University, NG7 2RD, Nottingham, UK.
authors.forename: J S
authors.initials: JS
authors.lastname: Kueh
authors.forename: I A
authors.initials: IA
authors.lastname: Mackenzie
authors.forename: G
authors.initials: G
authors.lastname: Pattenden