Transgenic plants with increased titerpene saponin levels

摘要

The invention relates to plants with increased levels of triterpene saponins. The plant may have an increased activity of at least one oxidosqualene cyclase that catalyzes the cyclization of 2,3-oxidosqualene to form a cyclyzed triterpene. The plant may be transformed with at least one recombinant DNA molecule comprising a promoter operably linked to at least one polynucleotide encoding an oxidosqualene cyclase, said recombinant DNA molecule sufficient to increase production of a triterpene saponin; or any progeny of said plant, wherein said progeny comprise said recombinant DNA molecule.