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首页> 外文期刊>Journal of Agricultural and Food Chemistry >In Vivo Functional Verification of Four Related Genes Involved in the 1-Deoxynojirimycin Biosynthetic Pathway in Mulberry Leaves
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In Vivo Functional Verification of Four Related Genes Involved in the 1-Deoxynojirimycin Biosynthetic Pathway in Mulberry Leaves

机译：In Vivo Functional Verification of Four Related Genes Involved in the 1-Deoxynojirimycin Biosynthetic Pathway in Mulberry Leaves

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摘要

The alkaloid 1-deoxynojirimycin (DNJ) is one of the major bioactive compounds in mulberry leaves (Morus alba L.). Previously, we discovered four key genes involved in the pathway from lysine to piperidine in the biosynthesis of DNJ in mulberry leaves, MaLDC (MG727866), MaCAO (MH205733), MaSDR1 (MT989445), and MaSDR2 (MT989446), which encoded lysine decarboxylase, copper amine oxidase, and short-chain dehydrogenase/reductase 1 and 2, respectively. However, the in vivo functions of these four genes have not been verified yet. Here, these four genes were successfully cloned and used for the establishment of C58C1 Agrobacterium rhizogenes mediated overexpression genetic transformation systems and GV3101 Agrobacterium-mediated virus-induced gene silencing transformation systems in order to verify the influence of these four genes on the biosynthetic content of DNJ in mulberry leaves. The results showed that the content of DNJ increased after the four genes were overexpressed. When these four genes were silenced, the gene expression was blocked, which affected the biosynthesis of DNJ, and the DNJ content decreased. The above results indicated that these four genes participated in DNJ biosynthesis. This study provided a foundation for further elucidating the regulatory mechanisms of DNJ biosynthesis in mulberry leaves.

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