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Characterization of Stilbene Synthase Genes in Mulberry (Morus atropurpurea) and Metabolic Engineering for the Production of Resveratrol in Escherichia coli

文献类型： 外文期刊

作者： Wang, Chuanhong 1 ; Zhi, Shuang 1 ; Liu, Changying 1 ; Xu, Fengxiang 1 ; Zhao, Aichun 1 ; Wang, Xiling 1 ; Ren, Yanhon 1 ;

作者机构： 1.Southwest Univ, Coll Biotechnol, 2 Tiansheng Rd, Chongqing 400716, Peoples R China

2.Yunnan Acad Agr Sci, Sericultural & Apicultural Res Inst, Mengzi 661100, Yunnan, Peoples R China

关键词： mulberry;stilbene synthase;stilbenes;resveratrol;coexpression

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

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收录情况： SCI

摘要： Stilbenes have been recognized for their beneficial physiological effects on human health. Stilbene synthase (STS) is the key enzyme of resveratrol biosynthesis and has been studied in numerous plants. Here, four MaSTS genes were isolated and identified in mulberry (Morus atropurpurea Roxb.). The expression levels of MaSTS genes and the accumulation of transresveratrol, trans-oxyresveratrol, and trans-mulberroside A were investigated in different plant organs. A novel coexpression system that harbored 4-coumarate:CoA ligase gene (Ma4CL) and MaSTS was established. Stress tests suggested that MaSTS genes participate in responses to salicylic acid, abscisic acid, wounding, and NaC1 stresses. Additionally, overexpressed MaSTS in transgenic tobacco elevated the trans-resveratrol level and increased tolerance to drought and salinity stresses. These results revealed the major MaSTS gene, and we evaluated its function in mulberry, laying the foundation for future research on stilbene metabolic pathways in mulberry.

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