代谢物相互作用调解了Bacillus和Trichoderma之间的有益联盟,以有效控制Fusarium的作用
Jiyu Xie1,2, Xinli Sun1, Tao Wen1
1Jiangsu provincial key lab for solid organic waste utilization, Key lab of organic-based fertilizers of China, Jiangsu Collaborative Innovation Center for Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving fertilizers, Nanjing Agricultural University, Nanjing, Jiangsu 211800, China.
The ISME journal
|December 27, 2025
概括
土壤微生物Bacillus和Trichoderma形成联盟,产生化合物,保护植物免受诸如Fusarium oxysporum等病原体的侵害. 这种相互作用增强了土壤的健康和植物的生长.
科学领域:
- 微生物学 微生物学
- 土壤科学 土壤科学
- 植物病理学 植物病理学
背景情况:
- 细菌-真菌相互作用对于土壤健康和植物疾病管理至关重要.
- 细菌和Trichoderma物种在体外表现出对抗性,但在土壤中呈现出正相关性.
- 这些微生物与抑制Fusarium oxysporum和促进植物生长有关.
研究的目的:
- 为了研究Bacillus velezensis和Trichoderma guizhouense之间的跨王国相互作用.
- 了解在模型土壤社区中它们的有益相互作用背后的分子机制.
- 阐明这些相互作用如何有助于保护植物免受Fusarium oxysporum的侵害.
主要方法:
- 构建Bacillus velezensis和Trichoderma guizhouense的人工模型社区.
- 利用转录基因分析分析基因表达变化.
- 化学分析以确定参与相互作用的关键代谢物.
主要成果:
- 细菌 velezensis 激活了对抗微生物的二次代谢物产生,以应对Trichoderma guizhouense.
- 来自B. velezensis的表面素诱导T. guizhouense中的T22azaphilone的产生,减轻氧化应激.
- 表面素和T22azaphilone都有助于B. velezensis和T. guizhouense对抗Fusarium oxysporum的生存.
- 特里科德玛古伊佐恩斯会降解酸,酸是一种由菌分泌的生长抑制剂.
结论:
- 细菌和三体之间的代谢物介导相互作用创造了有益的联盟.
- 这些联盟增强了土壤微生物对病原体的抵抗力.
- 这些发现突显出一种基于微生物的植物防治土壤传播疾病的新机制.
相关概念视频
02:11The Roles of Bacteria and Fungi in Plant Nutrition
46.5K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
46.5K
01:27Combined Effects of Drugs: Synergism
6.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.7K
01:28Biological Methods for Microbial Control
758
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
758
01:40Overview of Metabolism
37.5K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
37.5K
01:27Microorganisms in Agriculture and Food industry
1.2K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1.2K
01:59Plant Breeding and Biotechnology
21.4K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
21.4K