Geocaulosphere soil bacterial community drives potato common scab outcomes beyond pathogen abundance.

IF 7.8 1区生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

npj Biofilms and Microbiomes Pub Date : 2025-07-16 DOI:10.1038/s41522-025-00774-y

Wenchong Shi, Minghao Lv, Ruiqi Wang, Muhammad Saleem, Lujun Wang, Mingcong Li, Bing Wang, Rongshan Lin, Bingjie Xu, Chunyu Yang, Tangyuan Ning, Bo Zhou, Zheng Gao

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Abstract

The assembly mechanisms of soil microbiome during plant disease progression remain incomplete. This study linked potato common scab (PCS) severity to destabilized soil microbiome dynamics in potato geocausphere soil (GS) through integrated metagenomic analysis and culture-based experiments. Across four Shandong fields, PCS-infected GS exhibited an 11.66% reduction in bacterial α-diversity (Shannon index) and elevated stochastic community assembly. Bacterial community structure explained 39.28% (GS) and 15.96% (bulk soil) of PCS variance, outperforming pathogen abundance contributions (14.39% GS, 7.33% BS). Two microbial interaction patterns emerged in GS: 1) synchronized shifts between pathogens and beneficial taxa as PCS intensified; 2) stochastic assembly governing entire communities but deterministic processes dominating specialized subgroups. These results propose a microbial stability framework connecting soil microbiome structural rules to plant disease progression, emphasizing community-level dynamics over pathogen-centric explanations.

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地孔圈土壤细菌群落驱动马铃薯常见结痂结果超出病原体丰度。

植物病害过程中土壤微生物组的组装机制尚不清楚。本研究通过综合宏基因组分析和培养实验，将马铃薯普通痂病（PCS）严重程度与马铃薯地干圈土壤（GS）不稳定的土壤微生物动态联系起来。在山东4个大田中，pcs感染后的GS细菌α-多样性（Shannon指数）下降11.66%，随机群落聚集增加。细菌群落结构对PCS方差的贡献率分别为39.28% （GS）和15.96%（散装土），高于病原菌丰度贡献率（14.39% GS和7.33% BS）。GS中出现了两种微生物相互作用模式：1)随着PCS的增强，病原菌与有益类群同步迁移；2)控制整个群落的随机组合，但控制特定子群体的确定性过程。这些结果提出了一个将土壤微生物组结构规则与植物病害进展联系起来的微生物稳定性框架，强调群落水平的动态而不是以病原体为中心的解释。

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来源期刊

npj Biofilms and Microbiomes Immunology and Microbiology-Microbiology

CiteScore

12.10

自引率

3.30%

发文量

审稿时长

9 weeks

期刊介绍： npj Biofilms and Microbiomes is a comprehensive platform that promotes research on biofilms and microbiomes across various scientific disciplines. The journal facilitates cross-disciplinary discussions to enhance our understanding of the biology, ecology, and communal functions of biofilms, populations, and communities. It also focuses on applications in the medical, environmental, and engineering domains. The scope of the journal encompasses all aspects of the field, ranging from cell-cell communication and single cell interactions to the microbiomes of humans, animals, plants, and natural and built environments. The journal also welcomes research on the virome, phageome, mycome, and fungome. It publishes both applied science and theoretical work. As an open access and interdisciplinary journal, its primary goal is to publish significant scientific advancements in microbial biofilms and microbiomes. The journal enables discussions that span multiple disciplines and contributes to our understanding of the social behavior of microbial biofilm populations and communities, and their impact on life, human health, and the environment.