Abstract
Podophyllum peltatum, was reexamined for its potential use in the commercial production of podophyllotoxin, a lignan used in the semisynthesis of important anticancer drugs. A survey of the natural population of the American mayapple, Podophyllum peltatum, was conducted in order to identify high-yielding genotypes. Plants were collected from the eastern and central United States. The lignan content of leaf blades and rhizome material of the collected specimens was characterized by aqueous extraction followed by HPLC analysis. Podophyllotoxin and α-peltatin appeared most prominently among the lignans obtained. Leaf blades were generally richer in podophyllotoxin than rhizomes. Several high-yielding accessions were identified, the blades of which contained 4.0–5.6% podophyllotoxin. A negative correlation was observed between podophyllotoxin and peltatin content in the blades. The combination of high biosynthetic capacity and preferential accumulation of podophyllotoxin in leaves of mayapple makesthis plant an excellent candidate for agricultural production of podophyllotoxin.
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