Journal
JOURNAL OF GINSENG RESEARCH
Volume 34, Issue 2, Pages 98-103Publisher
KOREAN SOC GINSENG
DOI: 10.5142/jgr.2010.34.2.098
Keywords
Elicitor; Ginseng; Ginsenoside; Jasmonic acid; Squalene synthase
Funding
- Korean Ginseng Center for Most Valuable Products & Ginseng for Technology Development Program of Agriculture and Forestry, Ministry of Food, Agriculture, Forestry and Fisheries, Republic of Korea
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The medicinal plant Panax ginseng (P ginseng) contains various phytosterols and bioactive triterpene saponins (ginsenosides). Squalene synthase catalyzes the first committed step in ginsenoside biosynthesis. Transgenic plants of P ginseng were generated by introducing the squalene synthase gene derived from P ginseng. Adventitious roots of the transgenic ginseng grew best in B5 medium, and 2 g of inoculum secured an optimal growth rate. Two phytohormones, indolebutyric acid and 1-naphtalene acetic acid, increased root growth and decreased ginsenoside production. Treatment with two selected elicitors, chitosan and jasmonic acid, and a precursor of the isoprenoid pathway, mevalonic acid, enhanced ginsenoside production and retarded ginseng growth rate.
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