Biotransformation of nicotine alkaloids by tobacco shooty teratomas induced by a Ti plasmid mutant

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Abstract
Tobacco shooty or rooty teratomas and hairy roots were induced by Agrobacterium tumefaciens (pGV 3845), A. tumefaciens (pGV 3304) and A. rhizogenes (pRi 8196), respectively. The tobacco alkaloids, nicotine, nornicotine and anatabine, were produced in hairy roots and in rooty teratomas but not in shooty teratomas. However, the shooty teratomas have the ability to accumulate the alkaloids and to biotransform nicotine to nornicotine. These were established by co-culture experiments incubating hairy roots and shooty teratomas in a same dish and by biotransformation experiments with shooty teratomas.