Adventitious root growth and ginsenoside accumulation in Panax ginseng cultures as affected by methyl jasmonate

Adventitious roots of ginseng were treated with methyl jasmonate (MJ) up to 150μm and cultured for 40days. Up to 100μm MJ inhibited the root growth but increase ginsenoside accumulation. In a two-stage bioreactor culture, total ginsenosides, after elicitation with 100 μm MJ peaked after 10days at 48mgg−1 dry wt and then dropped sharply. Of the two groups of ginsenosides (Rb and Rg), higher amounts of Rb accumulated in the adventitious roots.