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Int. J. Mol. Sci. 2017, 18(12), 2682; https://doi.org/10.3390/ijms18122682

Study on the Correlation between Gene Expression and Enzyme Activity of Seven Key Enzymes and Ginsenoside Content in Ginseng in Over Time in Ji’an, China

1
Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun 130000, China
2
Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310000, China
3
Jilin Entry Exit Inspection and Quarantine Bureau, Changchun 130000, China
*
Author to whom correspondence should be addressed.
Received: 26 October 2017 / Revised: 28 November 2017 / Accepted: 5 December 2017 / Published: 11 December 2017
(This article belongs to the Section Molecular Plant Sciences)
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Abstract

Panax ginseng is a traditional medicine. Fresh ginseng is one of the most important industries related to ginseng development, and fresh ginseng of varying ages has different medicinal properties. Previous research has not systematically reported the correlation between changes in key enzyme activity with changes in ginsenoside content in fresh ginseng over time. In this study, for the first time, we use ginseng samples of varying ages in Ji’an and systematically reported the changes in the activity of seven key enzymes (HMGR, FPS, SS, SE, DS, CYP450, and GT). We investigated the content of ginsenoside and gene expression of these key enzymes. Ginsenoside content was measured using HPLC. HPLC, GC-MS, and LC-MS were combined to measure the enzyme activity of the key enzymes. Quantitative PCR was used in the investigation of gene expression. By analyzing the correlation between the enzyme activity and the transcription level of the key enzymes with ginsenoside content, we found that DS and GT enzyme activities are significantly correlated with the ginsenoside content in different ages of ginseng. Our findings might provide a new strategy to discriminate between ginseng of different years. Meanwhile, this research provides important information for the in-depth study of ginsenoside biosynthesis. View Full-Text
Keywords: fresh ginseng; ginsenoside; key enzyme; enzyme activity; gene expression; correlation fresh ginseng; ginsenoside; key enzyme; enzyme activity; gene expression; correlation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yin, J.; Zhang, D.; Zhuang, J.; Huang, Y.; Mu, Y.; Lv, S. Study on the Correlation between Gene Expression and Enzyme Activity of Seven Key Enzymes and Ginsenoside Content in Ginseng in Over Time in Ji’an, China. Int. J. Mol. Sci. 2017, 18, 2682.

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