在牛堆肥过程中揭露与营养循环相关的活性细菌
Chaofan Ai1, Yuqi He1, Zhiwei Cheng1
1Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
Environmental research
|September 12, 2025
概括
乙单化物 (EMA) 有效地区分了堆肥中的活性细菌,揭示了蛋白质细菌主导营养循环. 这种方法比总DNA分析更清楚地了解微生物的作用.
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:
- 细菌群落对于堆肥过程中营养循环至关重要.
- 总DNA分析可能会高估细菌活动,原因是死细胞的细胞外DNA.
研究的目的:
- 为了评估牛堆肥中的活体细菌群体动态,使用乙单化物 (EMA) 处理.
- 为了比较EMA处理的DNA测序的准确性与代表活跃细菌群体的总DNA测序.
主要方法:
- 乙单化物 (EMA) 用于从堆肥样本中选择性提取细胞内DNA.
- 安普利康和元基因组测序在EMA处理和未处理的DNA上进行.
- 分析了细菌群体的组成和功能基因活性.
主要成果:
- 基于EMA的测序显示,与总DNA测序相比,活跃的细菌群体的表现更加准确.
- 蛋白质细菌被确定为主要的活性细菌类,对营养循环至关重要.
- 菲尔米库特是唯一被发现的活性固细菌,具有关键的酶基因.
结论:
- 区分活跃和总细菌群落对于了解堆肥微生物过程至关重要.
- 经EMA治疗提供了一种可靠的方法来评估活跃的细菌动态及其功能作用.
- 活性细菌,特别是蛋白质细菌,在牛堆肥过程中在营养循环中发挥着重要作用.
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