Effect of Plant Growth Regulators on Growth and Biosynthesis of Phenolic Compounds in Genetically Transformed Hairy Roots of Panax ginseng C. A. Meyer

In this study, morphological alterations, biomass growth, and secondary metabolite production of genetically transformed hairy roots of Panax ginseng C. A. Meyer, were evaluated after administration of plant growth regulators. The addition of benzylamino purine and kinetin to the culture media increased biomass formation and phenolic compound biosynthesis in the hairy roots. α-Naphthaleneacetic acid and indole-3-butyric acid inhibited hairy root growth, however, low concentrations of indole-3-acetic acid slightly increased hairy root growth. Low concentrations of 2,4-Dichlorophenoxyacetic acid profoundly inhibited growth of hairy roots.