基石生态集群的生物多样性和核心微生物群调节了牛驱动堆肥期间的堆肥成熟度
Xin Liu1, Xiangmin Rong1, Pan Jiang1
1National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources, Hunan Agricultural University, Changsha, 410128, China.
Environmental research
|December 26, 2023
概括
这项研究表明,细菌和真核微生物群落,而不是真菌,是堆肥成熟的关键驱动因素. 它们的生物多样性和核心微生物群在牛堆肥过程中显著影响营养循环和有机物转化.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 牛堆肥是营养物质回收和废物管理的重要过程.
- 了解微生物社区动态对于优化堆肥效率至关重要.
- 关键的微生物群体及其在堆肥成熟中的作用仍然不完全理解.
研究的目的:
- 为了研究牛堆肥过程中细菌,真菌和原生体的继承.
- 确定微生物生物多样性和核心微生物群对堆肥成熟度的贡献.
- 阐明微生物群落调节堆肥成熟度的机制.
主要方法:
- 高通量测序用于微生物社区分析.
- 多变性生态网络分析以可视化微生物相互作用.
- 统计建模,包括结构方程建模,以评估关系.
主要成果:
- 在堆肥阶段观察到细菌,真菌和真核生物群体组成,丰富性和多样性的显著变化.
- 特定的细菌 (Sphingobacterium,Galibacter,Firmicutes) 和真核生物 (Chytridiomycota,Basidiomycota,Ciliophora) 种群被确定为与堆肥成熟度相关的核心微生物群.
- 细菌和真核菌群的生物多样性和核心微生物群,比真菌更多,显著预测了堆肥成熟度.
- 微生物群落结构和核心微生物群通过影响营养素可用性 (NH4+-N,NO3--N),半纤维素,湿酸和酸含量来影响堆肥成熟度.
结论:
- 细菌和真核生物群落在推动牛堆肥成熟度方面比真菌发挥更为主导作用.
- 关键微生物群的生物多样性和核心微生物群是堆肥成熟度的关键指标和调节者.
- 研究结果提供了通过有针对性的微生物管理来增强堆肥过程的见解.
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