Analysis of ginsenoside content, functional genes involved in ginsenosides biosynthesis, and activities of antioxidant enzymes in Panax quinquefolium L. adventitious roots by fungal elicitors

文献类型： 外文期刊

第一作者： Li, Jinxin

作者： Li, Jinxin;Li, Hongfa;Wang, Juan;Liu, Shujie;Li, Jianli;Liu, Dahui

作者机构：

关键词： RT-PCR;SDS-PAGE;Antioxidant enzymes;Adventitious roots;HPLC-ESI-MSn

期刊名称：RESEARCH ON CHEMICAL INTERMEDIATES （ 影响因子：2.914； 五年影响因子：2.32 ）

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年卷期：

页码：

收录情况： SCI

摘要： In this study, Candida tropicalis, Aspergillus niger, and a mixture of their cultures were previously used as fungal elicitors in Panax quinquefolium adventitious root culture to enhance ginsenoside production. The result showed that ginsenoside content (11.47 +/- 0.54 mg g(-1)) was significantly enhanced to 3.25-fold of the control group after treatment with 400 mg L-1 C. tropicalis. The polysaccharide content (213.01 +/- 18.63 mg g(-1)) reached the highest when A. niger was at the concentration of 200 mg L-1. HPLC-ESI-MSn analysis was performed, showing that ginsenosides Rh-1 and Ro were identified after treatment with fungal elicitors. Furthermore, we found that C. tropicalis, A. niger, and mix elicitor significantly up-regulated the expression of the squalene synthase, squalene epoxidase, dammarenediol synthase, beta-amyrin synthase, protopanaxadiol synthase, protopanaxatriol synthase, and UDP-glycosyltransferase. SDS-polyacrylamide gel electrophoresis was used to analysis the changes of protein. A new band was discovered at the size of 75 kDa. In addition, it found that fungal elicitors significantly increased the activities of catalases and peroxidase.

分类号： O62

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