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Stimulation of saponin production in Panax ginseng hairy roots by two oligosaccharides from Paris polyphylla var. yunnanensis.

Zhou L, Cao X, Zhang R, Peng Y, Zhao S, Wu J

College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100094, China.

Two oligosaccharides, a heptasaccharide (HS) and an octasaccharide (OS), isolated from Paris polyphylla var. yunnanensis, stimulated the growth and saponin accumulation of Panax ginseng hairy roots at 5-30 mg l(-1). HS and OS at 30 mg l(-1), fed separately to hairy root cultures at 10 days post-inoculation, increased the root biomass dry weight by more than 70% to approximately 20 g l(-1) from 13 g l(-1) and the total saponin content of roots by more than 1-fold to approximately 3.5% from 1.6% (w/w). The results suggest that the two oligosaccharides may have plant growth-regulatory activity in plant tissue cultures.

Published 7 March 2007 in Biotechnol Lett, 29(4): 631-4.
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