Development of suspension culture technology and hormone effects on anthocyanin biosynthesis for red Cyclocarya paliurus cells
文献类型： 外文期刊
作者： Liu, Yuan 1 ; Liang, Qi 1 ; Tang, Daobang 2 ; Chen, Yuqin 1 ; Zang, Jianwei 1 ; Zhao, Wenjia 1 ; Chen, Jiguang 1 ; Zhang, Qingfeng 1 ; Yin, Zhongping 1 ;
作者机构： 1.Jiangxi Agr Univ, Coll Food Sci & Engn, Jiangxi Key Lab Nat Prod & Funct Foods, Nanchang 330045, Jiangxi, Peoples R China
2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc, Guangzhou 510610, Peoples R China
关键词： Plant cell culture; Cyclocarya paliurus; Anthocyanins; Hormones; Metabolome; Transcriptome
期刊名称：PLANT CELL TISSUE AND ORGAN CULTURE （ 影响因子：2.726； 五年影响因子：2.859 ）
ISSN： 0167-6857
年卷期： 2022 年 149 卷 1-2 期
页码：
收录情况： SCI
摘要： Plant cell culture is a good way to produce anthocyanins owing to its outstanding advantages of short cycles and no limitation on natural environments. However, this method has not been widely used due to the lack of elite cell lines, low yield, and relatively high cost. In the present paper, suspension culture technology of red Cyclocarya paliurus cells was developed to produce anthocyanins, and the effects of hormones on anthocyanin biosynthesis in the cultured cells were investigated through omics. Under the optimized culture conditions and hormones combination, total anthocyanins yield reached 20.81 mg/L. A total of 23 compounds were identified and quantified in the cultured cells by targeted metabolomic analysis of anthocyanins. Hormones showed significant effects on anthocyanins accumulation, and the content of cyanidin-3-O-galactoside and cyanidin-3-O-glucoside increased 1.92 and 1.68 times than that of the control group respectively. Compared with the control group, the optimized hormone combination upregulated the expression levels of key genes in the anthocyanin biosynthesis pathway (flavonoid 3'-hydroxylase (F3'H), dihydroflavonol 4-reductase (DFR), leucocyanidin reductase (LAR), leucoanthocyanidin dioxygenase (LDOX), and anthocyanin-3-O-glucosyltransferase (3GT) and Transcription factors (TFs) (MYB5, MYB86, ERF003, ERF024, and bZIP44), meanwhile downregulated the expression levels of pathway genes (flavonoid 3',5'-hydroxylase (F3'5'H) and anthocyanin reductase (ANR)) and TFs (MYB4, MYC2, and bHLH137). Integrative analysis of metabolome and transcriptome indicated that the optimized hormones combination changed TFs' expression, which further led to the expression change of anthocyanin biosynthesis pathway genes and eventually resulted in a significant increment of anthocyanins biosynthesis in the cultured cells. [GRAPHICS] .
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