Yeast extract improved biosynthesis of astragalosides in hairy root cultures of Astragalus membranaceus
| Autor: | Yun Ji Park, Jae Kwang Kim, Sang Un Park |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
biology Traditional medicine 010405 organic chemistry General Medicine biology.organism_classification 01 natural sciences Biochemistry 0104 chemical sciences Astragalus chemistry.chemical_compound Triterpenoid Astragaloside Biosynthesis chemistry 010608 biotechnology Hairy root culture Yeast extract Biotechnology |
| Zdroj: | Preparative Biochemistry & Biotechnology. 51:467-474 |
| ISSN: | 1532-2297 1082-6068 |
| Popis: | The dried root of Astragalus membranaceus is a well-known herbal medicine, and it is useful in treating chronic diseases and weakness, as well as for improving overall health and vitality. Astragalosides, which are root quality indicators of A. membranaceus, are natural triterpenoid saponins that are used in the treatment of diabetes and cardiovascular diseases. Currently, there is an urgent need to improve their production because of their low quantity in plants and the difficulty of chemical synthesis. In this study, yeast extract was added to facilitate elicitation in Agrobacterium-mediated hairy root cultures, thereby enhancing astragaloside production in A. membranaceus. Results showed that yeast extract could stimulate astragaloside content effectively in the hairy roots of A. membranaceus. Moreover, astragaloside accumulation was positively correlated with the upregulation of mevalonate biosynthetic gene expression in the presence of yeast extract. Our study demonstrated that pretreatment with yeast extract (3.65 mM) for 72 h serves as an effective strategy to enhance astragaloside levels in A. membranaceus hairy root cultures. Thus, these optimal conditions can provide valuable information for the improvement of astragaloside industrial production in A. membranaceus. |
| Databáze: | OpenAIRE |
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