与猪无氧湖肥相关的微生物组的表征和组装动力学处理生物炭
A Nathan Frazier1, William Willis1, Heather Robbe1
1United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Bushland, TX 79012, USA.
Microorganisms
|April 26, 2025
概括
生物炭的应用改变了猪的微生物群落,影响了多样性和组成. 这些变化表明生物炭.
科学领域:
- 农业科学 农业科学
- 环境微生物学 环境微生物学
- 土壤科学 土壤科学
背景情况:
- 生物炭显示出减少畜牧业和农业温室气体排放的承诺.
- 猪便管理对于环境可持续性至关重要.
- 了解微生物社区的转变是优化生物炭效益的关键.
研究的目的:
- 研究不同生物炭颗粒大小对猪便微生物群落的影响.
- 评估微生物多样性和组成因生物炭应用而发生的变化.
- 探索对温室气体减排潜力的影响.
主要方法:
- 试点研究涉及四个治疗组:对照,粗,细和超细生物炭应用于猪.
- 用于微生物社区分析的16S rRNA amplicon测序.
- 包括克鲁斯卡尔-瓦利斯和PERMANOVA在内的统计分析,以评估多样性和组成差异.
主要成果:
- 在老化和所有生物炭治疗组之间观察到微生物多样性的显著差异.
- 在治疗组中确定了不同的微生物社区组成.
- 特定的细菌种群 (Idiomarina,Geovibrio thiophilus,Parapusillimonas granuli,未培养的Gammaproteobacteria) 被丰富,而其他 (Comamonas,Brumimicrobium aurantiacum) 则被耗尽.
结论:
- 生物炭的应用显著改变了猪的微生物群落.
- 虽然发生了组成的变化,但生物炭处理似乎没有决定性地改变微生物组装模式.
- 功能冗余表明,尽管生物炭引起的组成变化,但微生物功能具有弹性.
相关概念视频
01:26Microbes and Methanogenesis
Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
01:29Soil Microbial Ecology
Soil microbial ecology is defined by highly diverse, spatially structured communities that drive nutrient cycling, organic matter turnover, and overall ecosystem stability. Although a gram of soil can contain thousands of bacterial and archaeal taxa, the ecological processes they mediate are even more crucial for sustaining terrestrial life.Microhabitats and NichesSoil is a heterogeneous mixture of minerals, organic matter, water, and air. Microbes inhabit distinct microhabitats formed by...
01:30Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
01:27Microbiota of the Large Intestine
The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...