Planting Density Affects Panax notoginseng Growth and Ginsenoside Accumulation by Balancing Primary and Secondary Metabolism

• DOI: 10.3389/fpls.2021.628294
• Publication Date: 2021-04-12T14:52:25Z
• Authors: Haijiao Liu; Hongrui Gu; Chen Ye; Cunwu Guo; Yifan Zhu; Huichuan Huang; Yixiang Liu; Xiahong He; Min Yang; Shusheng Zhu
• Keywords: Panax notoginseng; Carbohydrate Metabolism

Adjusting planting density is a common agricultural practice used to achieve maximum yields. However, whether the quality of medicinal herbs can be improved by implementing appropriate densities still uncertain. The crop Panax notoginseng was analyze effects on growth and ginsenoside accumulation, possible mechanisms these were revealed through metabonomics. results showed that P. achieved high accumulation at (8 × 8 10 cm), while simultaneously biomass moderate 15 cm. At density, primary metabolism (starch sucrose metabolism) secondary (the biosynthesis phytohormone IAA ginsenoside) plants significantly enhanced. strong intraspecific competition resulted in stress as well phytohormones (SA JA), antioxidants (gentiobiose, oxalic acid, dehydroascorbic acid) other resistance-related metabolites. Interestingly, dry content lower low (20 20 30 cm) with competition, which disturbed normal carbohydrate upregulating galactose metabolism. In summary, an benefit for ginsenosides balancing