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The coupling effect of Penicillium baileys W2 in the Aspergillus flavus inhibition and peanut growth promotion

文献类型： 外文期刊

作者： Qianqian Wang;Shihua Shan;Quanxi Sun;Xiaobo Zhao;Cuiling Yuan;Yifei Mou;Juan Wang;Caixia Yan;Qi Wang;Qingchen Rui;Chunjuan Li

作者机构：

关键词： Aspergillus flavus;Biocontrol;Microbial community;Penicillium baileys W2;Soil nutrient

期刊名称： Synthetic and Systems Biotechnology

ISSN： 2405-805X

年卷期： 2025 年 11 卷

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度）

摘要： Aspergillus flavus is a significant plant pathogen, and peanut crops are particularly vulnerable to aflatoxin contamination. This vulnerability underscores the need for more effective control methods. In this study, the strain Penicillium baileys W2 was isolated from the rhizosphere soils of healthy peanut seedlings. The fermentation extract exhibited concentration-dependent inhibition of pathogenic A. flavus growth, with a minimum inhibitory concentration (MIC) of 55 % and a minimum fungicidal concentration (MFC) of 60 %. Physiological data and transcriptome analysis demonstrated that the W2 fermentation supernatant inhibited A. flavus growth by disrupting membrane permeability. Metabolomics analysis identified active compounds, including propylparaben, taxifolin, and phloretin, which exhibited significant antagonistic effects against A. flavus. Additionally, we evaluated the impact of the W2 fermentation broth on peanut growth promotion and on rhizosphere microbial community structure using metagenomic sequencing. The reduction of harmful soil microorganisms contributed to the maintenance of soil health, whereas the increased abundance of beneficial microorganisms enhanced peanut seedling growth by facilitating soil nutrient cycling. These findings indicate that the development and application of P. baileys strain W2 or its fermentation extract aligns with sustainable agricultural principles and offers a promising biological control approach.

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