Antifungal potential of hydrothermal liquefaction wastewater in plant protection.

IF 4.2 3区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

World journal of microbiology & biotechnology Pub Date : 2025-09-29 DOI:10.1007/s11274-025-04573-7

Emre Demirer Durak

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Abstract

This study investigates the antifungal potential of hydrothermal liquefaction (HTL) wastewater against Verticillium dahliae and its effects on the growth of pepper plants (Capsicum annuum L.). The HTL process generates wastewater containing various antimicrobial compounds, which can offer a sustainable alternative for plant protection. In this research, the biological control agent Trichoderma virens and HTL wastewater were applied both individually and in combination to assess their impact on plant growth and pathogen suppression. The results demonstrated that specific HTL wastewater treatments significantly enhanced root and shoot growth, biomass, and chlorophyll content in pepper plants. Plant growth observed in pathogen-free conditions may be related to the stimulation of plant physiology by biologically active components contained in wastewater, indicating a biostimulatory effect. Notably, the 4th wastewater mixture (wm) exhibited the highest efficacy, promoting plant development and mitigating the negative effects of V. dahliae. The combination of T. virens and wastewater also showed synergistic effects, reducing disease severity by up to 64% and improving plant biomass and structural parameters. Statistical analysis revealed significant differences among treatments, highlighting the potential of HTL wastewater as a natural and sustainable strategy for managing soil-borne pathogens. These findings suggest that integrating HTL wastewater with biocontrol agents could offer a promising approach to sustainable agriculture.

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水热液化废水在植物保护中的抑菌潜力。

研究了水热液化废水对大丽花黄萎病菌的抑菌作用及其对辣椒植株生长的影响。HTL工艺产生的废水含有各种抗菌化合物，可以为植物保护提供可持续的替代方案。本研究以木霉（Trichoderma virens）和HTL废水分别单独和联合施用，考察其对植物生长和病原菌抑制的影响。结果表明，HTL废水处理显著提高了辣椒根、梢生长、生物量和叶绿素含量。在无病原体条件下观察到的植物生长可能与废水中含有的生物活性成分对植物生理的刺激有关，表明生物刺激效应。其中，第4种废水处理（wm）效果最好，能促进植物发育，减轻大丽花的负面影响。水蛭与废水的组合也显示出协同效应，降低病害严重程度达64%，改善植物生物量和结构参数。统计分析显示了处理之间的显著差异，突出了HTL废水作为管理土壤传播病原体的自然和可持续战略的潜力。这些发现表明，将HTL废水与生物防治剂相结合可能为可持续农业提供一条有前途的途径。

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

World journal of microbiology & biotechnology 工程技术-生物工程与应用微生物

CiteScore

6.30

自引率

2.40%

发文量

257

审稿时长

2.5 months

期刊介绍： World Journal of Microbiology and Biotechnology publishes research papers and review articles on all aspects of Microbiology and Microbial Biotechnology. Since its foundation, the Journal has provided a forum for research work directed toward finding microbiological and biotechnological solutions to global problems. As many of these problems, including crop productivity, public health and waste management, have major impacts in the developing world, the Journal especially reports on advances for and from developing regions. Some topics are not within the scope of the Journal. Please do not submit your manuscript if it falls into one of the following categories: · Virology · Simple isolation of microbes from local sources · Simple descriptions of an environment or reports on a procedure · Veterinary, agricultural and clinical topics in which the main focus is not on a microorganism · Data reporting on host response to microbes · Optimization of a procedure · Description of the biological effects of not fully identified compounds or undefined extracts of natural origin · Data on not fully purified enzymes or procedures in which they are applied All articles published in the Journal are independently refereed.