Material conversion, microbial community composition and metabolic functional succession during green soybean hull composting
| Autor: | Li Linchao, Rongshan Lin, Bing Wang, Zheng Gao, Jian Huang, Renmao Tian, Chao Zhang, Wencong Shi, Bo Zhou |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering Bioengineering 010501 environmental sciences Biology complex mixtures 01 natural sciences Methylococcaceae Soil 010608 biotechnology Food science Waste Management and Disposal 0105 earth and related environmental sciences Bacteria Renewable Energy Sustainability and the Environment Thermophile Composting Microbiota fungi Pseudomonas General Medicine Straw biology.organism_classification Manure Metabolic pathway Microbial population biology Germination Soybeans Mycobiome |
| Zdroj: | Bioresource technology. 316 |
| ISSN: | 1873-2976 |
| Popis: | In this study, green soybean hulls and maize straw were used for composting to explore the dynamics of material conversion, bacterial and fungal communities and metabolic functions. The results showed that bacterial and fungal communities had different temporal successions during composting. The bacterium Streptosporangiaceae was a biomarker in the thermophilic stage of composting, and the fungus Chaetomiaceae was a biomarker in the thermophilic stage and cooling stage. In the bacterial network, the germination index (GI) had a time-delayed association with Truepera, Pseudomonas and Methylococcaceae, which represented the key physicochemical characteristics that affect the community. In the fungal community, the GI, pH, fulvic acid (FA) and temperature etc. had a joint effect. Carbohydrate metabolism and amino acid metabolism were the main metabolic pathways, and saprotrophs represented the dominant fungal trophic mode in the composting process. These results provide a reference from screening specific and efficient agents to accelerate natural vegetable composting. |
| Databáze: | OpenAIRE |
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