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Effect of methyl jasmonate on the ginsenoside content of Panax ginseng adventitious root cultures and on the genes involved in triterpene biosynthesis

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Abstract

Methyl jasmonate (MJ)-induced changes of triterpene saponins in Panax ginseng C.A. Meyer adventitious roots, and expression of the genes involved in triterpene biosynthesis, were analyzed. Compared with controls, expression of the squalene epoxidase and dammarenediol synthase genes was clearly upregulated and total saponin content increased in response to MJ. The highest total saponin content was obtained by use of 10 mg L−1 MJ for 24 h, and was 4.76-fold greater than in the control group. Expression of the two genes associated with the cytochrome P450 family was no different from that in controls. The level of ginsenoside in the Rg group thus increased much less than that in the Rb group. This investigation showed that the total saponin content of ginseng adventitious root is related to gene expression in ginsenoside biosynthesis.

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Abbreviations

2,4-D:

2,4-Dichlorophenoxyacetic acid

KT:

Kinetin

IBA:

Indole-3-butyric acid

MS:

Murashige and Skoog

SS:

Squalene synthase

SE:

Squalene epoxidase

DS:

Dammarenediol synthase

β-AS:

β-Amyrin synthase

CAS:

Cycloartenol synthase

LS:

Lupeol synthase

GT:

Glycosyltransferase

MJ:

Methyl jasmonate

RT-PCR:

Reverse transcription-polymerase chain reaction

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Acknowledgments

This research was funded by Science and Technology Commission of Tianjin, China (09ZCKFSH01100).

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Authors and Affiliations

  1. Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China

    Juan Wang & Wenyuan Gao

  2. Key Laboratory of Industrial Microbiology, Ministry of Education, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China

    Juan Wang, Wenyuan Gao, Beimei Zuo & Liming Zhang

  3. Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China

    Luqi Huang

Authors
  1. Juan Wang
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  2. Wenyuan Gao
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  3. Beimei Zuo
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  4. Liming Zhang
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  5. Luqi Huang
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Correspondence to Wenyuan Gao.

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Wang, J., Gao, W., Zuo, B. et al. Effect of methyl jasmonate on the ginsenoside content of Panax ginseng adventitious root cultures and on the genes involved in triterpene biosynthesis. Res Chem Intermed 39, 1973–1980 (2013). https://doi.org/10.1007/s11164-012-0730-7

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  • DOI: https://doi.org/10.1007/s11164-012-0730-7

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