Study on biogenic acid-mediated enhanced leaching of lepidolite by Aspergillus niger based on transcriptomics.

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-02-01 Epub Date: 2024-12-02 DOI:10.1016/j.biortech.2024.131920

Huaiyu Duan, Xinyi Zhang, Xingqing Zhao, Chao Xu, Du Zhang, Wei Gu, Rucheng Wang, Xiancai Lu

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Abstract

The synergistic effect between microorganisms with different modes of action can improve the leaching efficiency. In this study, biogenic acid was extracted from bacterial metabolites to induce fungal secretion, strengthen fungal leaching, and reveal the microscopic mechanism of biogenic acid stimulating fungal metabolic synthesis through transcriptome analysis. The results showed that the addition of biogenic acid increased the biomass and metabolic activity of Aspergillus Niger, changed the secretion of extracellular polymeric substances, enhanced the dissolution of mineral surface, and increased the leaching rate. A total of 3556 up-regulated and 2225 down-regulated differential genes were identified in Aspergillus Niger spores by transcriptome analysis after the addition of biogenic acid, with significant functional enrichment mainly related to organic acid metabolism. These findings suggest that biogenic acid have a beneficial catalytic effect on Aspergillus Niger, providing understanding and support for the interaction mechanism between different strains of combined leaching.

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基于转录组学的黑曲霉生物酸介导的锂云石强化浸出研究。

不同作用方式的微生物之间的协同作用可以提高浸出效率。本研究从细菌代谢物中提取生物原酸，诱导真菌分泌，强化真菌浸出，并通过转录组分析揭示生物原酸刺激真菌代谢合成的微观机制。结果表明，生物原酸的添加增加了黑曲霉的生物量和代谢活性，改变了胞外聚合物质的分泌，增强了矿物表面的溶解，提高了浸出率。通过转录组分析，在添加生物原酸后，黑曲霉孢子中共鉴定出3556个上调差异基因和2225个下调差异基因，功能富集显著，主要与有机酸代谢相关。这些结果表明，生物源酸对黑曲霉具有有益的催化作用，为不同菌株联合浸出的相互作用机制提供了理解和支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.