合成微生物群体通过组装真菌群体在堆肥过程中增强了纤维素酶的降解
Qiumei Liu1, Zhouling Xie1, Siyu Tang2
1Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125 China; Guangxi Industrial Technology Researc Institute for Karst Rocky Desertification Control, Nanning 530000 China; Guangxi Key Laboratory of Karst Ecological Processes and Services, Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang 547100 China.
Bioresource technology
|January 15, 2025
概括
合成微生物社区 (SynCom) 接种增强了堆肥过程中纤维素蛋白质的降解. 这一过程通过改变真菌群体和促进酶活动来改善有机肥的质量.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 合成微生物群落 (SynComs) 提供了一个环保的方法,用于在堆肥中降解纤维素.
- 了解SynCom调节的纤维素降解机制对于优化有机肥生产至关重要.
研究的目的:
- 阐明SynCom注射如何影响在堆肥过程中菌素降解的机制.
- 评估SynCom对真菌群落结构和酶活动的影响.
主要方法:
- 用定义的SynCom.com对堆肥材料进行注射.
- 对纤维素和半纤维素含量减少的分析.
- 测定纤维细胞分解酶活性 (内葡萄糖酶,外葡萄糖酶,β-葡萄糖酶).
- 高通量测序以确定真菌群体的组成和数量.
主要成果:
- 在成熟的堆肥中,SynCom注射显著降低了纤维素 (26.2%) 和半纤维素 (14.3%) 含量.
- 包括内葡萄糖酶,外葡萄糖酶和β-葡萄糖酶在内的酶活性显著增加.
- 观察到真菌群落的转变,增加了诸如Hydropisphaera (OTU10) 等特定属的丰富性,并刺激了与木材和垃圾类植物相关的功能.
结论:
- 通过改变真菌微生物群和增强酶活性,SynCom注射有效促进纤维素酶降解.
- 这种微生物操纵导致有机肥质量的提高.
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