Variation of alkaloid productivity among several clones of hairy roots and regenerated plants ofAtropa belladonna transformed withAgrobacterium rhizogenes 15834.

Hairy root cultures ofAtropabelladonna were established by transformation withAgrobacterium rhizogenes 15834. Five clones of them were employed to study the production of hyoscyamine, the main constituent of the plant, together with other tropane alkaloids. The growth and alkaloid production of each clone were differently affected by basal liquid culture media tested.