title: Stimulation of saponin production in Panax ginseng hairy roots by two oligosaccharides from Paris polyphylla var. yunnanensis.
abstract: 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.
authors.affiliation: College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.
authors.forename: Ligang
authors.initials: L
authors.lastname: Zhou
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Cao
authors.forename: Ruifen
authors.initials: R
authors.lastname: Zhang
authors.forename: Youliang
authors.initials: Y
authors.lastname: Peng
authors.forename: Shoujing
authors.initials: S
authors.lastname: Zhao
authors.forename: Jianyong
authors.initials: J
authors.lastname: Wu
mesh_terms: D049109:Cell Proliferation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D019684:Magnoliopsida / Q000378:metabolism*; D009844:Oligosaccharides / Q000008:administration & dosage*; D005894:Panax / Q000187:drug effects / Q000502:physiology*; D018517:Plant Roots / Q000187:drug effects / Q000502:physiology*; D012503:Saponins / Q000378:metabolism*
chemical_list: D009844:Oligosaccharides; D012503:Saponins