Relationship between bacterial diversity and environmental parameters during composting of different raw materials.
Relationship between bacterial diversity and environmental parameters during composting of different raw materials.
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DOI：
10.1016/j.biortech.2015.09.041
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发表时间：
2015-12
影响因子：
11.4
通讯作者：
Xueqin Wang;Hongyang Cui;Jianhong Shi;Xinyu Zhao;Yue Zhao;Zi-min Wei
中科院分区：
文献类型：
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作者：
Xueqin Wang;Hongyang Cui;Jianhong Shi;Xinyu Zhao;Yue Zhao;Zi-min Wei
本研究的目的是比较七种不同堆肥的细菌结构。确定了影响细菌种类的主要环境因素，并提出了通过控制相关环境参数来提高未培养细菌丰度的策略。结果表明，在堆肥过程中，不同堆体的理化参数以不同的方式发生变化，从而以不同的方式影响细菌的结构和演替。DGGE图谱显示堆肥过程中有10种优势种。其中4种存在于所有堆肥类型中，2种存在于多堆中，4种存在于单一堆肥中。结果表明，C/N和水分对细菌种类组成有显著影响（p< 0.05）。最适C/N范围为14 ~ 27。基于这些结果，影响某些物种的主要环境因素被进一步确定为细菌多样性的潜在控制因素。
The aim of this study was to compare the bacterial structure of seven different composts. The primary environmental factors affecting bacterial species were identified, and a strategy to enhance the abundance of uncultured bacteria through controlling relevant environmental parameters was proposed. The results showed that the physical–chemical parameters of each different pile changed in its own manner during composting, which affected the structure and succession of bacteria in different ways. DGGE profiles showed that there were 10 prominent species during composting. Among them, four species existed in all compost types, two species existed in several piles and four species were detected in a single material. Redundancy analysis results showed that bacterial species compositions were significantly influenced by C/N and moisture (p< 0.05). The optimal range of C/N was 14–27. Based on these results, the primary environmental factors affecting a certain species were further identified as a potential control of bacterial diversity.