Scholarlink

<p>It is completely unclear whether and how mutualistic endophytes affect the accumulation of functional components in the stem of <i>E. sinica</i> at different ages. In this study, the contents of all the main compounds changed regularly and reached the highest level at twenty-three years (total sugar, 3.065&#xa0;µg/mg; flavonoids, 362.733&#xa0;µg/mg; total alkaloids, 11.793&#xa0;µg/mg; ephedrine, 19.169&#xa0;µg/mg) or twenty-eight years (tannins, 19.922&#xa0;µg/mg; pseudoephedrine, 7.399&#xa0;µg/mg) except for phenolic acid. The species and abundance of endophytic fungi were also varying dynamically in the stem of <i>E. sinica</i> with different developmental years. It was found that the accumulations of seven concerned components were significantly (<i>p</i> &lt; 0.05) or extremely significantly (<i>p</i> &lt; 0.01) correlated with twenty-one unclassified fungi among the top 80 unclassified fungal OTUs and at least nine fungi with definite taxonomic status among the top 100 classified fungi in terms of abundance. The accumulation of total alkaloids and pseudoephedrine, the most important active ingredients in the stem, was significantly positively correlated with <i>Coprinopsis insignis</i> (OTU47621, 0.937, <i>p</i> &lt; 0.05) and <i>Onygenales</i> sp. (OTU52749, 0.888, <i>p</i> &lt; 0.05), respectively. These findings help to deepen the understanding of the factors affecting the formation of metabolites in the stem of <i>E. sinica</i>, and provide assistance for improving plant quality.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The accumulation of major active ingredients associated to mutualistic endophytic fungi in the stem of Ephedra sinica with different growth years

  • 期刊论文

  • 发表日期：

    2025年5月16日

查看全文
  • Zhao-Qi Cui,
  • Hong-He Xiao

摘要

It is completely unclear whether and how mutualistic endophytes affect the accumulation of functional components in the stem of E. sinica at different ages. In this study, the contents of all the main compounds changed regularly and reached the highest level at twenty-three years (total sugar, 3.065 µg/mg; flavonoids, 362.733 µg/mg; total alkaloids, 11.793 µg/mg; ephedrine, 19.169 µg/mg) or twenty-eight years (tannins, 19.922 µg/mg; pseudoephedrine, 7.399 µg/mg) except for phenolic acid. The species and abundance of endophytic fungi were also varying dynamically in the stem of E. sinica with different developmental years. It was found that the accumulations of seven concerned components were significantly (p < 0.05) or extremely significantly (p < 0.01) correlated with twenty-one unclassified fungi among the top 80 unclassified fungal OTUs and at least nine fungi with definite taxonomic status among the top 100 classified fungi in terms of abundance. The accumulation of total alkaloids and pseudoephedrine, the most important active ingredients in the stem, was significantly positively correlated with Coprinopsis insignis (OTU47621, 0.937, p < 0.05) and Onygenales sp. (OTU52749, 0.888, p < 0.05), respectively. These findings help to deepen the understanding of the factors affecting the formation of metabolites in the stem of E. sinica, and provide assistance for improving plant quality.