Journal
BIORESOURCE TECHNOLOGY
Volume 302, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2020.122883
Keywords
Organic matter degradation; Metabolism function; Composting; Bacterial community; Fungal community
Funding
- National Natural Science Foundation of China [51778180, 51761145031]
- National Key R&D Program of China [2019YFD1100300]
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The metabolic function and organic degradation behavior of bacterial and fungal communities were detected in 60 days composting of chicken manure and pumice by using Biolog tools, PICRUSt and FUNGuild. Fungal diversity increased from 57 OTUs in fresh chicken manure to 109 OTUs in high temperature stage, while bacterial diversity decreased from 86 OTUs to 44 OTUs after composting treatment. The carbohydrates degradation ability of bacterial community was enhanced in the high temperature stage. Fungal community had relatively higher degradation rates of carboxylic acids and amino acids in the maturation stage. Saprotroph was the main trophic mode of fungal community during the incubation process. The fungal animal pathogen decreased from 12.5% to 1.2% after composting treatment. Bacterial community composition and substrates degradation rate were mainly influenced by redox potential, pH and moisture, while temperature was the main environmental factor influencing on organic degradation of fungal community.
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