Evolution of microbial community diversity and enzymatic activity during composting

文献类型： 外文期刊

第一作者： He, Yumei

作者： He, Yumei;Xie, Kaizhi;Xu, Peizhi;Huang, Xu;Gu, Wenjie;Zhang, Fabao;Tang, Shuanhu;Xie, Kaizhi

作者机构：

关键词： Aerobic composting;Chicken manure;DGGE;Enzymology;Raw material

期刊名称：RESEARCH IN MICROBIOLOGY （ 影响因子：3.992； 五年影响因子：4.061 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The composting of organic material is dependent on microbial activity. However, the dynamics of the microbial community during the composting process remain obscure. Here, denaturing gradient gel electrophoresis of 16S rDNA amplicons in a chicken manure-based compost was applied to characterize the components of the microbial community during the composting process. In addition, the activity of key microbial enzymes was monitored. Arcobacter spp. and Marinospirillum spp. were the dominant species prior to composting, whereas Thermotogae spp. became more strongly represented as the composting process proceeded. Bacillus and Cohnella spp. were featured at various phases. Correlation analysis showed that the diversity of the microbial community was positively correlated with the compost pH, its total nitrogen level, its carbon-to-nitrogen ratio and the activity of protease, and negatively correlated with its organic carbon content and seed germination indices. ? 2012 Institut Pasteur.

分类号： R37

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