文献类型： 外文期刊
第一作者： Jia, Ning
作者： Jia, Ning;Wang, Jing-Jing;Liu, Jiameng;Sun, Jing;Sun, Yufeng;Fan, Bei;Jia, Ning;Liu, Jiameng;Sun, Jing;Sun, Yufeng;Fan, Bei;Jiang, Jinlan;Yan, Peipei;Wan, Peiyu;Ye, Wei
作者机构： Chinese Acad Agr Sci, Inst Food Sci & Technol, Beijing 100193, Peoples R China;Minist Agr & Rural Affairs, Lab Qual & Safety Risk Assessment Agroprod Proc, Beijing 100193, Peoples R China;Sanming Acad Agr Sci, Inst Med Plant Sci, Shaxian 365050, Fujian, Peoples R China
关键词： Dendrobium candidum; DcTT8; Anthocyanin biosynthesis; Transcriptional regulation
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 2019影响因子：3.72； 五年影响因子：3.966 ）
ISSN： 0981-9428
年卷期： 2021 年 162 卷
收录情况： SCI
摘要： Dendrobium candidum stems are used as Chinese medicine and functional food. Red stems of D. candidum are rich in anthocyanins, which attract pollinator insects, protect the plants against environmental stress, and improve human health. The regulatory mechanisms of anthocyanin biosynthesis and stem color differentiation in D. candidum are not fully understood. Using transcriptome profiling, we identified a basic helix-loop-helix transcription factor (DcTT8) involved in anthocyanin biosynthesis in D. candidum stems. Ultraperformance liquid chromatography-tandem mass spectrometry was used to determine pigment contents and compositions in red and green stems, revealing that cyanidin is responsible for the red color. DcTT8 could bind the DcF3' H and DcUFGT promoters and finely regulate DcF3' H and DcUFGT expression. Our data indicate that DcTT8 participates in anthocyanin biosynthesis and offers novel insights into the transcriptional regulation of anthocyanin biosynthesis in D. candidum.
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