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Xie XG, Zhang ZZ, Chen L, Ming QL, Sheng KX, Chen X, Rahman K, Feng KM, Su J, Han T. An endophytic fungus Schizophyllum commune isolated from Panax ginseng enhances hairy roots growth and ginsenoside biosynthesis. Can J Microbiol 2023; 69:296-308. [PMID: 37084415 DOI: 10.1139/cjm-2022-0194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
Using endophytic fungal elicitors to increase the accumulation of valuable secondary metabolites in plant tissue culture is an effective biotechnology strategy. In this study, a collection of 56 strains of endophytic fungi were isolated from different organs of cultivated Panax ginseng, of which seven strains can be symbiotically co-cultured with the hairy roots of P. ginseng. Further experiments observed that strain 3R-2, identified as endophytic fungus Schizophyllum commune, can not only infect hairy roots but also promote the accumulation of specific ginsenosides. This was further verified because S. commune colonization significantly affected the overall metabolic profile of ginseng hairy roots. By comparing the effects of S. commune mycelia and its mycelia extract (EM) on ginsenoside production in P. ginseng hairy roots, the EM was confirmed to be a relatively better stimulus elicitor. Additionally, the introduction of EM elicitor can significantly enhance the expressions of key enzyme genes of pgHMGR, pgSS, pgSE, and pgSD involved in the biosynthetic pathway of ginsenosides, which was deemed the most relevant factor for promoting ginsenosides production during the elicitation period. In conclusion, this study is the first to show that the EM of endophytic fungus S. commune can be considered as an effective endophytic fungal elicitor for increasing the biosynthesis of ginsenosides in hairy root cultures of P. ginseng.
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Affiliation(s)
- Xing-Guang Xie
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Zhen-Zhen Zhang
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
- Naval Medicine Center of PLA, Naval Medical University, Shanghai, China
| | - Ling Chen
- Shanghai Putuo Mental Health Center, Shanghai, China
| | - Qian-Liang Ming
- Department of Pharmacognosy, School of Pharmacy, Army Medical University, Chongqing, China
| | - Ke-Xin Sheng
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Xi Chen
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Khalid Rahman
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Kun-Miao Feng
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Juan Su
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Ting Han
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
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