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The efficacy of reductive soil disinfestations on disease control is highly dependent on the microbiomes they reconstructed

文献类型： 外文期刊

作者： Xia, Qing 1 ; Zeng, Liangbin 2 ; Yu, Wenhao 1 ; Liu, Zihao 1 ; Wang, Mengqi 1 ; Yang, Yuanru 2 ; Dai, Shenyan 1 ; Zhang, Jinbo 1 ; Cai, Zucong 1 ; Liu, Liangliang 5 ; Zhao, Jun 1 ;

作者机构： 1.Nanjing Normal Univ, Sch Geog, Nanjing 210023, Peoples R China

2.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Peoples R China

3.Jiangsu Engn Res Ctr Soil Utilizat & Sustainable A, Nanjing 210023, Peoples R China

4.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China

5.Yichun Univ, Coll Life Sci & Environm Resources, Yichun 336000, Peoples R China

关键词： Reductive soil disinfestation; Pathogen proliferation; Soil microbiome; Microbial network complexity; Longya lily

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：6.4； 五年影响因子：6.8 ）

ISSN： 0167-8809

年卷期： 2025 年 382 卷

页码：

收录情况： SCI

摘要： Reductive soil disinfestation (RSD) is an effective strategy for soil health management, although the disease control efficacy for replanting crops often varies due to the different organic substrates employed. The underlying mechanisms of this phenomenon remain to be elucidated. This study utilized two types of organic substrates, molasses (MO) and sugarcane bagasse (SB), to perform RSD treatment on Longya lily cultivated soils. Soil microbial abundance and community structure after RSD treatment and during replanted lily growth, as well as disease severity and biomass of lily bulbs at harvest stage were investigated. Results indicated that both RSD treatments significantly reduced fungal pathogens to a similar extent. However, the proliferation rate of Fusarium oxysporum and F. solani in SB-treated soil was slower compared to MO-treated soil during lily replantation, resulting in superior disease control efficacy with SB. Significant differences in microbial composition, diversity, structure, and dynamics were observed between MO and SB treatments. Mantel test revealed significant (P < 0.05) relationships between soil microbiome dissimilarities and variations in lily yield and disease. Notably, SB treatment fostered more complex soil microbial networks than MO, characterized by higher connectance, average degree, clustering coefficient, centralization degree, cohesion, and connectedness. The complexity of microbial networks exhibited a significant (P < 0.001) negative correlation with disease incidence and disease index, and a positive correlation with the theoretical yield of lily. This study demonstrates that the efficacy of RSD in disease control is closely associated with the structure of the soil microbiome and the complexity of microbial interactions.

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