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<p>Field planting results in variable rhizome traits and leading to a reduction in the quality of <i>A. lancea</i>. By simulating the habitat of <i>A. lancea</i>, we conducted a study on the quality of <i>A. lancea</i> rhizomes by in-forest planting. We compared the effects of ecological factors (e.g., soil and light) on the formation of agronomic traits, physiological, biochemical, and quality indices between <i>A. lancea</i> under in-forest planting and field planting conditions over 1–2 years. Our results demonstrate that, compared with field planting, biennial <i>A. lancea</i> rhizomes grown in the in-forest exhibit superior quality traits, including increased cinnabar dots in cross-sections and higher concentrations of medicinal components (volatile oils, atractylodin, and atractylon). Furthermore, a positive correlation was observed between the expression levels of key biosynthetic enzyme-encoding genes (FAD, ACC, HMGR, SS, and FPPS) and the accumulation of these medicinal components, with significantly higher expression in in-forest-grown plants than in field-planted ones. Reduced antioxidant enzyme activity in in-forest-planted <i>A. lancea</i> suggests that mild environmental stress promotes secondary metabolite biosynthesis. Additionally, lower chlorophyll content and photosynthetic rates indicate that moderate shading enhances medicinal quality. In-forest-planted <i>A. lancea</i> thrived in nutrient-rich soil with a diverse microbial community. Notably, increased abundances of Gp2 and Gp3 bacteria were positively associated with elevated levels of volatile oils, atractylodin, and atractylon. Mineral-enriched soil and suitable light conditions are key factors for producing high-quality <i>A. lancea</i> in in-forest planting systems.</p>

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Study on In-Forest Planting to Promote the Formation of Excellent Quality of Medicinal Herb, Atractylodes lancea

  • 期刊论文

  • 发表日期：

    2025年10月17日

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  • Min Tang,
  • Bin Xie,
  • Zengcai Yang,
  • Wenda Xue,
  • Yifu Gan,
  • Yuheng Wu,
  • Shengyuan Wang,
  • Qi Li,
  • Wei Gu

摘要

Field planting results in variable rhizome traits and leading to a reduction in the quality of A. lancea. By simulating the habitat of A. lancea, we conducted a study on the quality of A. lancea rhizomes by in-forest planting. We compared the effects of ecological factors (e.g., soil and light) on the formation of agronomic traits, physiological, biochemical, and quality indices between A. lancea under in-forest planting and field planting conditions over 1–2 years. Our results demonstrate that, compared with field planting, biennial A. lancea rhizomes grown in the in-forest exhibit superior quality traits, including increased cinnabar dots in cross-sections and higher concentrations of medicinal components (volatile oils, atractylodin, and atractylon). Furthermore, a positive correlation was observed between the expression levels of key biosynthetic enzyme-encoding genes (FAD, ACC, HMGR, SS, and FPPS) and the accumulation of these medicinal components, with significantly higher expression in in-forest-grown plants than in field-planted ones. Reduced antioxidant enzyme activity in in-forest-planted A. lancea suggests that mild environmental stress promotes secondary metabolite biosynthesis. Additionally, lower chlorophyll content and photosynthetic rates indicate that moderate shading enhances medicinal quality. In-forest-planted A. lancea thrived in nutrient-rich soil with a diverse microbial community. Notably, increased abundances of Gp2 and Gp3 bacteria were positively associated with elevated levels of volatile oils, atractylodin, and atractylon. Mineral-enriched soil and suitable light conditions are key factors for producing high-quality A. lancea in in-forest planting systems.