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Enhancing banana health with key antagonistic taxa by crop residue-driven strategies

文献类型： 外文期刊

作者： Hong, Shan 1 ; Yuan, Xianfu 5 ; Jia, Zhongjun 6 ; Ruan, Yunze 6 ;

作者机构： 1.Hainan Acad Agr Sci, Sanya Inst, Inst Vegetables, Hainan Key Lab Vegetable Biol, San Ya 572025, Hainan, Peoples R China

2.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China

3.Hainan Seed Ind Lab, Sanya 572025, Hainan, Peoples R China

4.Chinese Acad Agr Sci, Natl Nanfan Res Inst Sanya, Sanya 572025, Hainan, Peoples R China

5.Anhui Sci & Technol Univ, Coll Resources & Environm, Chuzhou 239000, Anhui, Peoples R China

6.Hainan Univ, Sanya Nanfan Res Inst, Sanya 572025, Hainan, Peoples R China

7.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Changchun 130000, Jilin, Peoples R China

关键词： Pepper residues; Eggplant residues; Key taxa; Fusarium wilt disease; Identification strategy

期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：5.0； 五年影响因子：5.4 ）

ISSN： 0929-1393

年卷期： 2025 年 210 卷

页码：

收录情况： SCI

摘要： Panama disease (Fusarium wilt of banana), which is caused by Fusarium oxysporum f. sp. cubense tropical race 4 (FocTR4), is the most devastating threat to banana production. The retention of crop residues enhances disease suppression in banana rotation systems. We performed quantitative PCR and MiSeq sequencing to investigate the effects of crop residues on soil microbial communities and to assess the suppressive impacts of residue extracts on FocTR4. Pepper and eggplant residues significantly reduced Panama disease incidence (DI) and FocTR4 abundance. The incorporation of pepper residue as a soil amendment reduced the DI to <20 % in the second pot experiment, indicating sustained disease suppression. Residue extracts confirmed the residue inhibitory effects. The pepper and eggplant residues increased the bacterial copy number and decreased the fungal copy number in the amended soil. Pepper residues enhanced soil microbial richness and diversity more than eggplant and banana residues did. The microbial communities of the pepper and eggplant residues were similar but distinct from those of the banana residues and controls, with differences between the rhizosphere and bulk soil communities. Structural equation modeling identified available phosphorus as a key mediator linking residue inputs to pathogen suppression via the enrichment of key soil taxa. Pepper (OTU180_Rhizomicrobium) and eggplant (OTU187_Gp4) residues promoted key microbes, exerted antagonistic effects on FocTR4, and reduced DI. Overall, these findings establish crop residue management as an effective strategy for sustainable banana cultivation, thus overcoming continuous cropping challenges through key taxa-mediated disease suppression.

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