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Aims <p> <i>Auricularia cornea</i> cv. Yu Muer residue fertilizer (YMRF), a promising soil amendment derived from co-composting with chicken manure, has unclear potential for application in <i>Leonurus japonicus</i> cultivation. Therefore, YMRF was tested in pot trials to assess its role in improving&#xa0;plant growth and the accumulation of&#xa0;medicinal compounds through soil optimization.</p> Methods <p>Co-composting YMRF with chicken manure demonstrated superior compatibility for plant growth. Pot trials tested three YMRF-to-soil ratios (1:1, 1:2, pure YMRF) against a soil control. Plant growth parameters, soil physicochemical properties, microbial communities, and bioactive compounds were analyzed via HPLC and metagenomic sequencing.</p> Results <p>The 1:1 YMRF:soil ratio (OQ group) optimized <i>L. japonicus</i> growth (height: 76.54&#xa0;cm; biomass: 0.66&#xa0;g/plant) and leonurine content (346.84&#xa0;μg/g) while elevating key substrate nutrients (OC, TN, AP, AK, HA, FA, HM). This amendment balanced organic matter mineralization, enriched thermophilic taxa (<i>Thermobacillus</i>, <i>Thermoactinomyces</i>), and suppressed pathogens (e.g., <i>Rhodococcus equi</i>). Concurrently, it reduced the abundance of&#xa0;antibiotic resistance gene and enhanced nitrogen cycle functions (DNRA, glutamine synthetase), despite post-cultivation AP decrease in OQ1 (20.12&#xa0;mg/kg). The integrated effect promoted microbial-driven ammonium assimilation and soil health.</p> Conclusions <p>These results establish YMRF as a sustainable biofertilizer for <i>L. japonicus</i> cultivation, addressing soil degradation and enhancing medicinal compound yields through microbiome-driven nutrient cycling.</p>

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Auricularia cornea cv. Yu Muer residue fertilizer promotes Leonurus japonicus growth and leonurine accumulation via microbiome-driven nitrogen cycling

  • 期刊论文

  • 发表日期：

    2025年8月13日

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  • Yongxun Duan,
  • Lingyun Liu,
  • Yongsheng Ma,
  • Wang Shu,
  • Yueting Dai,
  • Xianyao Deng,
  • Andrey A. Gontcharov,
  • Yu Li,
  • Changtian Li

摘要

Aims

Auricularia cornea cv. Yu Muer residue fertilizer (YMRF), a promising soil amendment derived from co-composting with chicken manure, has unclear potential for application in Leonurus japonicus cultivation. Therefore, YMRF was tested in pot trials to assess its role in improving plant growth and the accumulation of medicinal compounds through soil optimization.

Methods

Co-composting YMRF with chicken manure demonstrated superior compatibility for plant growth. Pot trials tested three YMRF-to-soil ratios (1:1, 1:2, pure YMRF) against a soil control. Plant growth parameters, soil physicochemical properties, microbial communities, and bioactive compounds were analyzed via HPLC and metagenomic sequencing.

Results

The 1:1 YMRF:soil ratio (OQ group) optimized L. japonicus growth (height: 76.54 cm; biomass: 0.66 g/plant) and leonurine content (346.84 μg/g) while elevating key substrate nutrients (OC, TN, AP, AK, HA, FA, HM). This amendment balanced organic matter mineralization, enriched thermophilic taxa (Thermobacillus, Thermoactinomyces), and suppressed pathogens (e.g., Rhodococcus equi). Concurrently, it reduced the abundance of antibiotic resistance gene and enhanced nitrogen cycle functions (DNRA, glutamine synthetase), despite post-cultivation AP decrease in OQ1 (20.12 mg/kg). The integrated effect promoted microbial-driven ammonium assimilation and soil health.

Conclusions

These results establish YMRF as a sustainable biofertilizer for L. japonicus cultivation, addressing soil degradation and enhancing medicinal compound yields through microbiome-driven nutrient cycling.