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<p>The adaptability of <i>Emmenopterys henryi</i> Oliv. to shade in the forest is a crucial intrinsic driving force for its natural renewal. Elucidating the influence of shade on biomass and non-structural carbohydrate (NSC)&#xa0;accumulation and allocation in leaf, stem and root will help to understand the endangerment mechanism of <i>E. henryi.</i> Results showed that <i>E. henryi</i> invested more biomass in leaf than in stem and root under shade. The biomass was positively correlated with the NSC pool in leaf, stem and root, respectively. The biomass fraction of leaf, stem or root was positively correlated with NSC fraction in leaf, stem or root of <i>E. henryi</i>, respectively. Starch and sucrose metabolism was proved to be the commonly enriched pathway in leaf, stem and root of <i>E. henryi</i> under shade, the key genes that were regulated differentially by shade. The hub genes regulating accumulation and distribution of biomass and NSC in leaf, stem and root of <i>E. henryi</i> under shade mainly correlated with photosynthesis, respiration, monosaccharides transportation, and cell expansion. Further research into these hub genes will be helpful for illumination of the adaptation mechanism of <i>E. henryi</i> to shade.</p>

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Integrated transcriptome and metabolome analyses reveal regulation mechanism of biomass and non‑structural carbohydrate allocation in Emmenopterys henryi Oliv. under shade

  • 期刊论文

  • 发表日期：

    2025年4月26日

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  • Wenna Liu,
  • Ruili Luo,
  • Hongwei Wang,
  • Yu Jing,
  • Huaqiang Zhao,
  • Weina Zou,
  • Meifang Hou,
  • Lili Song

摘要

The adaptability of Emmenopterys henryi Oliv. to shade in the forest is a crucial intrinsic driving force for its natural renewal. Elucidating the influence of shade on biomass and non-structural carbohydrate (NSC) accumulation and allocation in leaf, stem and root will help to understand the endangerment mechanism of E. henryi. Results showed that E. henryi invested more biomass in leaf than in stem and root under shade. The biomass was positively correlated with the NSC pool in leaf, stem and root, respectively. The biomass fraction of leaf, stem or root was positively correlated with NSC fraction in leaf, stem or root of E. henryi, respectively. Starch and sucrose metabolism was proved to be the commonly enriched pathway in leaf, stem and root of E. henryi under shade, the key genes that were regulated differentially by shade. The hub genes regulating accumulation and distribution of biomass and NSC in leaf, stem and root of E. henryi under shade mainly correlated with photosynthesis, respiration, monosaccharides transportation, and cell expansion. Further research into these hub genes will be helpful for illumination of the adaptation mechanism of E. henryi to shade.