微生物死体类似物重塑了堆肥的化途径.
Wenjie Chen1, Yan Yang2, Su Chang2
1College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, 100193 Beijing, China; School of Agriculture, Food and Ecosystem Sciences, The University of Melbourne, Victoria 3010, Australia.
Bioresource technology
|November 5, 2025
概括
在堆肥中添加N-乙-d-葡萄糖胺 (GlcNAc) 或基会改变微生物活动和化. 这些死体类型重编程代谢途径,影响堆肥质量和碳稳定.
科学领域:
- 土壤科学 土壤科学
- 微生物学 微生物学
- 生物地质化学生物地质化学
背景情况:
- 微生物死体对于土壤碳稳定至关重要.
- 尸体在堆肥化中的确切作用尚未完全理解.
- 了解化途径是有机废物管理的关键.
研究的目的:
- 调查N-乙-d-葡萄糖胺 (GlcNAc) 和基对猪堆肥的作用.
- 阐明微生物死体类似物在化中的机械作用.
- 确定这些类似物如何影响物理化学性质,微生物群落和湿性物质的形成.
主要方法:
- 整合元基因组学,定量性死体追踪和部分最小平方结构方程建模 (PLS-SEM).
- 用 GlcNAc 和基添加剂对堆肥过程进行系统的研究.
- 分析物理化学性质,微生物社区动态和死体质量转化.
主要成果:
- GlcNAc和基都显著改变了堆肥特性和微生物群落.
- 素增强了早期微生物生物质和多样性,但抑制了酸 (HA) 的形成,有利于酸 (FA) 的积累.
- GlcNAc在成熟过程中促进了细菌的增殖,减少了多样性,增加了FA,并导致了不那么复杂的湿性物质 (HS).
- 甲基因组学和PLS-SEM揭示了类似物重新编程了 humification 路径,转向更简单的代谢路径,并将死体与稳定的 HA 形成脱.
结论:
- 对死体转换的有针对性的调节可以优化化效率和HS分子特征.
- 这项研究提供了对死体在堆肥化中的作用的机制性见解.
- 这些发现为改善有机废物利用和堆肥过程控制奠定了基础.
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