一个生态驱动的微生物联盟增强了植物生长和免疫力,同时保持了树球微生物平衡
Mrinmoy Mazumder1, Hitesh Tikariha2, Sevugan Mayalagu3
1Singapore Centre for Environmental Life Science Engineering (SCELSE), Singapore 637551.
Plant communications
|December 10, 2025
概括
一个新的微生物联盟 (SAB) 通过整合微生物相互作用和代谢互补性来增强植物生长和生物量. 这种可持续的方法减少了肥料的需求,并保持了土壤的健康.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 化学肥料带来环境风险,并导致农业的高碳足迹.
- 发展稳定,有效和环保的植物生长促进 (PGP) 微生物联盟对于可持续农业至关重要.
- 现有的PGP联盟经常面临稳定性和广谱疗效方面的挑战.
研究的目的:
- 设计和构建一个新的,稳定的,有效的三成员微生物联盟 (SAB) 促进植物生长.
- 评估设计的财团的PGP潜力和稳定性.
- 调查联盟促进植物生长的机制及其对土壤微生物群落的影响.
主要方法:
- 综合网络分析和基因组级代谢建模以根据相互作用和代谢互补性选择微生物成员.
- 微生物学和基因组分析以评估联盟的稳定性和PGP潜力.
- 现型和转录组分析以评估植物生长,生物量和宿主反应.
主要成果:
- 构建的SAB联盟展示了显著的PGP潜力和稳定性,超过了单个微生物成员.
- 用SAB处理提高了植物生长率和生物量,但没有对土壤微生物群体产生负面影响.
- 在不同植物物种,种植方式和土壤条件中观察到SAB的一致和广泛的有益活性.
- 转录基因分析显示,SAB能够激活植物生长和防御反应,绕过典型的生长-防御权衡.
结论:
- 像SAB这样的生态设计的微生物联盟,为化学肥料提供了一个可持续的替代方案.
- 该SAB联盟通过微生物组介导的信号来优化资源分配,有效地增强植物生长.
- 这种方法最大限度地减少了土壤原生微生物群落的破坏,突出了土壤对可持续农业的潜力.
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
01:30Environmental Applications of Microorganisms
903
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
903
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
01:29Microorganisms in Medicine and Therapeutics
914
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
914
00:46Bioremediation
22.0K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.0K
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