Vindoline synthesis in in vitro shoot cultures of Catharanthus roseus.

Vindoline, the major alkaloid in cultures of Catharanthus roseus shoots, reached 2 mg g(-1) dry wt after 27 d in culture. Maximal vindoline accumulation coincided with maximum activities of deacetoxyvindoline 4-hydroxylase, deacetylvindoline acetyl-CoA acetyl transferase and tryptophan decarboxylase. Shoot exposure to jasmonate shortened the time required for the maximal vindoline accumulation to 14 d.