工程固化微生物组与废物衍生的碳来源:朝着循环和弹性生物肥料溶液的方向
Nicolás Rodríguez-Romero1,2, Juan Carlos Clavijo-Salinas2, Julien Wist2,3
1Agricultural Microbiology Research Group, Biotechnology Institute, National University of Colombia, Bogotá, Colombia.
Frontiers in microbiology
|October 9, 2025
概括
这项研究从动物废物中设计了一个固定的微生物群体,创造了一种生物肥料,显著提高了植物生长和产量,为合成肥料提供了一个可持续的替代品.
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:
- 合成肥料带来环境风险,而且成本高昂.
- 微生物组工程为农业提供了一个可持续的替代方案.
- 价值化废物流,如动物废物,对于循环经济至关重要.
研究的目的:
- 通过使用动物废物的副产品,设计一个自组装,固微生物社区.
- 评估这种微生物群落作为作物生产的生物肥料的有效性.
- 评估将废物转化为高价值生物制品的潜力.
主要方法:
- 在生物反应器中,土壤样本得到了空气送和无氧发酵的挥发性脂肪酸 (VFA) 的丰富.
- 形成了一个固微生物群落,主要由*Sinirhodobacter*,*Aureimonas*和*Taibaiella*物种组成.
- 工程微生物组在水培和基于土壤的系统中被注射到番茄植物中.
主要成果:
- 与初始微生物组相比,工程微生物组的固能力是初始微生物组的2.7倍.
- 在上浮物中检测到高达12.7 mg·L-1的无机形式.
- 用生物肥料接种的西红植物显示显著增长和产量,与合成肥料相比.
结论:
- 微生物组工程可以从废物中创建有效的生物肥料.
- 这种方法支持循环经济,并为合成肥料提供可持续的替代方案.
- 简单的生物反应器系统适合发展中国家使用,符合"一个健康"的愿景.
相关概念视频
01:30Environmental Applications of Microorganisms
956
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...
956
01:20Overview of Nitrogen Metabolism
11.0K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
11.0K
01:49The Nitrogen Cycle
59.4K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
59.4K
01:22Inorganic Nitrogen Assimilation
459
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
459
01:27Microorganisms in Agriculture and Food industry
1.3K
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...
1.3K
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