Metabolic dynamics and physiological adaptation of Panax ginseng during development

Sukweenadhi, Johan and Kim, Yu-Jin and Joo, Sung Chul and Shi, Jianxin and Hu, Chaoyang and Quan, Sheng and Hu, Jianping and Mohanan, Padmanaban and Yang, Deok-Chun and Zhang, Dabing (2017) Metabolic dynamics and physiological adaptation of Panax ginseng during development. Plant Cell Reports, 37 (3). pp. 393-410. ISSN 0721-7714 (Print); 1432-203X (Online)

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Being an essential Oriental medicinal plant, ginseng (Panax ginseng Meyer) is a slow-growing perennial herb-accumulating pharmaceutically active metabolites such as ginsenosides in roots during growth. However, little is known about how ginseng plants survive in the harsh environments such as winter cold and summer heat for a longer period and accumulates those active metabolites as the plant grows. To understand the metabolic kinetics in both source and sink organs such as leaves and roots of ginseng plant, respectively, and to assess the changes in ginsenosides biosynthesis during ginseng growth, we investigated the metabolic profiles from leaves and roots of 1-, 4-, and 6-year-old field-grown ginseng plants. Using an integrated non-targeted metabolomic approach, we identified in total 348 primary and secondary metabolites, which provided us for the first time a global metabolomic assessment of ginseng during growth, and morphogenesis. Strikingly, the osmoprotectants and oxidized chemicals were highly accumulated in 4- and 6-year-old ginseng leaves suggested that ginseng develop a wide range of metabolic strategies to adapt unfavorable conditions as they mature. In 6-year-old plants, ginsenosides were decreased in leaves but increased in roots up to 1.2- to sixfold, supporting the view that there is a long-distance transport of ginsenosides from leaves to roots as ginseng plants mature. Our findings provide insights into the metabolic kinetics during the development of ginseng plant and this could complement the pharmacological importance of ginseng and its compounds according to their age.

Item Type: Article
Uncontrolled Keywords: Panax ginseng; Development; Ginsenosides; Metabolomics; Osmoprotectans
Subjects: Q Science > QK Botany
S Agriculture > S Agriculture (General)
Divisions: Faculty of Technobiology > Department of Biology
Date Deposited: 02 Mar 2018 04:48
Last Modified: 24 Mar 2021 15:45

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