Molecular cloning, characterization, and function analysis of a mevalonate pyrophosphate decarboxylase gene from Ganoderma lucidum
文献类型: 外文期刊
作者: Shi, Liang 1 ; Qin, Lei 1 ; Xu, Yingjie 2 ; Ren, Ang 1 ; Fang, Xing 1 ; Mu, Dashuai 1 ; Tan, Qi 3 ; Zhao, Mingwen 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Life Sci, Key Lab Microbiol Engn Agr Environm, Minist Agr, Nanjing 210095, Jiangsu, Peoples R China
2.State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China
3.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai Key Lab Agr Genet & Breeding, Natl Engn Res Ctr Edible Fungi, Shanghai 201106, Peoples R China
关键词: Ganoderma lucidum;Mevalonate diphosphate decarboxylase;Triterpene biosynthesis;Real-time PCR;Overexpression
期刊名称:MOLECULAR BIOLOGY REPORTS ( 影响因子:2.316; 五年影响因子:2.357 )
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收录情况: SCI
摘要: This study investigated the role of the mevalonate pyrophosphate decarboxylase gene in the triterpene biosynthetic pathway of Ganoderma lucidum. The mevalonate pyrophosphate decarboxylase gene (mvd) was isolated using a degenerate primer-PCR technique. An analysis of the Gl-mvd transcription profile revealed a positive correlation between the expression of the Gl-mvd gene and triterpene content changes in G. lucidum during development. Furthermore, a promoter deletion analysis was conducted in G. lucidum to investigate the promoter activity and the role of methyl jasmonate (MeJA) responsive elements in the mvd promoter under the MeJA elicitor. The overexpression of Gl-mvd increased triterpene accumulation compared with the wild-type strain and increased the expression of several genes involved in the triterpene biosynthetic pathway. The findings of this study suggest that mvd may play an important role in triterpene biosynthesis regulation. Moreover, there may be the interactions among the genes involved in the triterpene biosynthetic pathway in the G. lucidum. Additionally, this study provides an approach for improving triterpene content through the overexpression of a key gene.
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