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Comparative Metabolomic Analysis of Dendrobium officinale under Different Cultivation Substrates

文献类型： 外文期刊

作者： Zuo, Si-Min 1 ; Yu, Hai-Dong 1 ; Zhang, Weimin 1 ; Zhong, Qiuping 1 ; Chen, Wenxue 1 ; Chen, Weijun 1 ; Yun, Yong-Huan 1 ;

作者机构： 1.Hainan Univ, Coll Food Sci & Engn, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Hainan, Peoples R China

3.Minist Educ, Engn Res Ctr Utilizat Trop Polysaccharide Resourc, Haikou 571101, Hainan, Peoples R China

关键词： Dendrobium officinale; metabolomics; differential metabolites; cultivation substrates

期刊名称：METABOLITES （ 影响因子：4.932； 五年影响因子：4.98 ）

ISSN：

年卷期： 2020 年 10 卷 8 期

页码：

收录情况： SCI

摘要： Dendrobium officinale, a precious herbal medicine, has been used for a long time in Chinese history. The metabolites ofD. officinale, regarded as its effective components to fight diseases, are significantly affected by cultivation substrates. In this study, ultra-performance liquid chromatography mass spectrometry (UPLC-MS/MS) was conducted to analyzeD. officinalestems cultured in three different substrates: pine bark (PB), coconut coir (CC), and a pine bark: coconut coir 1:1 mix (PC). A total of 529 metabolites were identified. Multivariate statistical analysis methods were employed to analyze the difference in the content of metabolites extracted from different groups. By the criteria of variable importance in projection (VIP) value >= 1 and absolute log(2)(fold change) >= 1, there were a total of 68, 51, and 57 metabolites, with significant differences in content across groups being filtrated out between PB and PC, PB and CC, and PC and CC, respectively. The comparisons among the three groups revealed that flavonoids were the metabolites that fluctuated most. The results suggested theD. officinalestems from the PB group possessed a higher flavonoid content. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis indicated that the significantly regulated metabolites were mainly connected with flavonoid biosynthesis. A comprehensive profile of the metabolic differentiation ofD. officinaleplanted in different substrates was provided, which supports the selection of an optimum cultivation substrate for a higher biomass yield ofD. officinale.

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