Enhanced Biosynthesis of Chlorogenic Acid and Its Derivatives in Methyl-Jasmonate-Treated Gardenia jasminoides Cells: A Study on Metabolic and Transcriptional Responses of Cells
文献类型： 外文期刊
作者： Liu, Zebo 1 ; Mohsin, Ali 1 ; Wang, Zejian 1 ; Zhu, Xiaofeng 1 ; Zhuang, Yingping 1 ; Cao, Liming 3 ; Guo, Meijin 1 ; Yin 1 ;
作者机构： 1.East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China
2.Jiangxi Agr Univ, Jiangxi Key Lab Nat Prod & Funct Foods, Nanchang, Jiangxi, Peoples R China
3.Shanghai Acad Agr Sci, Crop Breeding & Cultivat Res Inst, Shanghai, Peoples R China
关键词： Gardenia jasminoides Ellis cultured cells; chlorogenic acids; methyl jasmonate; elicitation; transcriptome; transcription factors
期刊名称：FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY （ 影响因子：5.89； 五年影响因子：5.973 ）
ISSN： 2296-4185
年卷期： 2021 年 8 卷
页码：
收录情况： SCI
摘要： Chlorogenic acid and its derivatives (CQAs) are considered as important bioactive secondary metabolites in Gardenia jasminoides Ellis (G. jasminoides). However, few studies have investigated the biosynthesis and regulation of CQAs in G. jasminoides. In this study, methyl jasmonate (MeJA) was used to enhance CQAs accumulation in cultured G. jasminoides cells. Moreover, the possible molecular mechanism of MeJA-mediated accumulation of CQAs is also explored. To this end, time-course transcriptional profiles of G. jasminoides cells responding to MeJA were used to investigate the mechanism from different aspects, including jasmonate (JAs) biosynthesis, signal transduction, biosynthesis of precursor, CQAs biosynthesis, transporters, and transcription factors (TFs). A total of 57,069 unigenes were assembled from the clean reads, in which 80.7% unigenes were successfully annotated. Furthermore, comparative transcriptomic results indicated that differentially expressed genes (DEGs) were mainly involved in JAs biosynthesis and signal transduction (25 DEGs), biosynthesis of precursor for CQAs (18 DEGs), CQAs biosynthesis (19 DEGs), and transporters (29 DEGs). Most of these DEGs showed continuously upregulated expressions over time, which might activate the jasmonic acid (JA) signal transduction network, boost precursor supply, and ultimately stimulate CQAs biosynthesis. Additionally, various TFs from different TF families also responded to MeJA elicitation. Interestingly, 38 DEGs from different subgroups of the MYB family might display positive or negative regulations on phenylpropanoids, especially on CQAs biosynthesis. Conclusively, our results provide insight into the possible molecular mechanism of regulation on CQAs biosynthesis, which led to a high CQAs yield in the G. jasminoides cells under MeJA treatment.
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