Journal
RESEARCH IN MICROBIOLOGY
Volume 164, Issue 2, Pages 189-198Publisher
ELSEVIER
DOI: 10.1016/j.resmic.2012.11.001
Keywords
Aerobic composting; Raw material; Chicken manure; DGGE; Enzymology
Categories
Funding
- China Central Foundation of Agricultural Science and Technology Production [2010E00079]
- Guangdong Province Key Scientific Research Base [2009A060800026]
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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. (C) 2012 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
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