Article révisé par les pairs
Résumé : Callus cultures derived from a young shoot and a flower bud of Ailanthus altissima have been examined for quassinoid production (ailanthone). The biosynthetic potential of the calli from the two sources was related to the explant origin as well as to the addition of exogenous auxins to the culture medium. This is the first report of quassinoid production in cell culture. © 1987.