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Wang X, Liu N, Zeng R, Liu G, Yao H, Fang J. Change of core microorganisms and nitrogen conversion pathways in chicken manure composts by different substrates to reduce nitrogen losses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:14959-14970. [PMID: 38285254 DOI: 10.1007/s11356-024-31901-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/03/2024] [Indexed: 01/30/2024]
Abstract
Due to the rapid development of animal husbandry, the associated environmental problems cannot be ignored, with the management of livestock and poultry manure emerging as the most prominent issue. Composting technology has been widely used in livestock and poultry manure management. A deeper understanding of the nitrogen conversion process during composting offers a theoretical foundation for selecting compost substrates. In this study, the effects of sawdust (CK) and spent mushroom compost (T1) as auxiliary materials on nitrogen as well as microbial structure in the composting process when composted with chicken manure were investigated. At the end of composting, the nitrogen loss of T1 was reduced by 17.18% relative to CK. When used as a compost substrate, spent mushroom compost accelerates the succession of microbial communities within the compost pile and alters the core microbial communities within the microbial community. Bacterial genera capable of cellulose degradation (Fibrobacter, Herbinix) are new core microorganisms that influence the assimilation of nitrate reduction during compost maturation. Using spent mushroom compost as a composting substrate increased the enzyme activity of nitrogen assimilation while decreasing the enzyme activity of the denitrification pathway.
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Affiliation(s)
- Xinyu Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Naiyuan Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Rong Zeng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Gang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
- Hunan Engineering Laboratory for Pollution Control and Waste, Utilization in Swine Production, Changsha, 410128, China
| | - Hao Yao
- Changsha IMADEK Intelligent Technology Co., LTD, Changsha, China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China.
- Hunan Engineering Laboratory for Pollution Control and Waste, Utilization in Swine Production, Changsha, 410128, China.
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Zhou Y, Shen Y, Wang H, Jia Y, Ding J, Fan S, Li D, Zhang A, Zhou H, Xu Q, Li Q. Biochar addition accelerates the humification process by affecting the microbial community during human excreta composting. ENVIRONMENTAL TECHNOLOGY 2023:1-14. [PMID: 38100615 DOI: 10.1080/09593330.2023.2291418] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/30/2023] [Indexed: 12/17/2023]
Abstract
Biochar addition plays an important role in manure composting, but its driving mechanism on microbial succession and humification process of human excreta composting is still unclear. In the present study, the mechanism of biochar addition was explored by analysing the humification process and microbial succession pattern of human excreta aerobic composting without and with 10% biochar (HF and BHF). Results indicated that BHF improved composting temperature, advanced the thermophilic phase by 1 d, increased the germination index by 49.03%, promoted the growth rate of humic acid content by 17.46%, and raised the compost product with the ratio of humic acid to fulvic acid (HA/FA) by 16.19%. Biochar regulated the diversity of fungi and bacteria, increasing the relative abundance of Planifilum, Meyerozyma and Melanocarpus in the thermophilic phase, and Saccharomonospora, Flavobacterium, Thermomyces and Remersonia in the mature phase, which accelerates the humification. Bacterial communities' succession had an obvious correlation with the total carbon, total nitrogen, and temperature (P < 0.05), while the succession of fungal communities was influenced by the HA/FA and pH (P < 0.05). This study could provide a reference for the improvement of on-site human excreta harmless by extending the thermophilic phase, and facilitating the humification in human excreta compost with biochar addition.
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Affiliation(s)
- Yawen Zhou
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Yujun Shen
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Huihui Wang
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Yiman Jia
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Jingtao Ding
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Shengyuan Fan
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Danyang Li
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Aiqin Zhang
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Haibin Zhou
- Academy of Agricultural Planning and Engineering, Beijing, People's Republic of China
- Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, People's Republic of China
| | - Qing Xu
- United Nations International Children's Emergency Fund China, Beijing, People's Republic of China
| | - Qian Li
- United Nations International Children's Emergency Fund China, Beijing, People's Republic of China
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Li Y, Li J, Chang Y, Li R, Zhou K, Zhan Y, Wei R, Wei Y. Comparing bacterial dynamics for the conversion of organics and humus components during manure composting from different sources. Front Microbiol 2023; 14:1281633. [PMID: 37840749 PMCID: PMC10568323 DOI: 10.3389/fmicb.2023.1281633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
The study aimed to compare the differences in organic fractions transformation, humus components and bacterial community dynamics during manure composting from different sources, and to identify the key biotic and abiotic factors driving the humification process. Five types of manure [pig manure (PM), cow dung (CD), sheep manure (SM), chicken manure (CM), and duck manure (DM)] were used as raw materials for 30 days composting. The results showed the obvious difference of organic fractions decomposition with more cellulose degradation in CD and SM composting and more hemicellulose degradation in PM and CM composting. Composting of PM and CD contained significantly higher humus fractions than the other composts. Fluorescence spectra indicated that SM composting tended to form structurally stable humic acid fractions, while CM and DM tended to form structurally complex fulvic acid fractions. Pearson correlation analysis showed that humification process of composts in category A (PM, CD) with higher humification degree than category B (SM, CM, and DM) was positively correlated with lignin and hemicellulose degradation. Bioinformatics analysis found that Lysinibacillus promoted the degradation of hemicellulose and the conversion of fulvic to humic acid in the composts of category A, and in category B, Thermobifida, Lactobacillus, and Ureibacillus were key genera for humic acid formation. Network analysis indicated that bacterial interaction patterns had obvious differences in composting with different humus and humification levels.
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Affiliation(s)
- Yan Li
- Central Laboratory, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China
- Haikou City Key Laboratory of Clinical Medicine, Haikou, China
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Key Laboratory for Marine Drugs of Haikou, Hainan University, Haikou, China
| | - Jun Li
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
| | - Yuan Chang
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
| | - Ruoqi Li
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
| | - Kaiyun Zhou
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
| | - Yabin Zhan
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
- Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Renyue Wei
- College of Life Science, Northeast Agricultural University, Harbin, China
| | - Yuquan Wei
- College of Resources and Environmental Science, Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing, China
- Organic Recycling Institute (Suzhou) of China Agricultural University, Suzhou, China
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Xu M, Sun H, Yang M, Chen E, Wu C, Gao M, Sun X, Wang Q. Effect of biodrying of lignocellulosic biomass on humification and microbial diversity. BIORESOURCE TECHNOLOGY 2023:129336. [PMID: 37343799 DOI: 10.1016/j.biortech.2023.129336] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
By optimizing the carbon to nitrogen (C/N) ratio, this study accomplished an improved level of humification and microbial diversity in the biodrying process of lignocellulosic biomass. The results demonstrated that C/N ratio of 20 accelerated the decomposition of refractory lignocellulose, resulting in lower greenhouse gas emissions and the production of highly mature fertilizer with a germination index of 119.0% and a humic index of 3.2. Moreover, C/N ratio of 20 was found to diversify microbial communities, including Pseudogracilibacillus, Sinibacillus, and Georgenia, which contributed to the decomposition of lignocellulosic biomass and the production of humic acid. Hence, it is recommended to regulate the C/N ratio to 20:1 during the biodrying of biogas residue and wood chips to promote the economic feasibility and bioresource recycling.
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Affiliation(s)
- Mingyue Xu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Haishu Sun
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Min Yang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Enmiao Chen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Chuanfu Wu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Ming Gao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Xiaohong Sun
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Qunhui Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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Matheri F, Kambura AK, Mwangi M, Karanja E, Adamtey N, Wanjau K, Mwangi E, Tanga CM, Bautze D, Runo S. Evolution of fungal and non-fungal eukaryotic communities in response to thermophilic co-composting of various nitrogen-rich green feedstocks. PLoS One 2023; 18:e0286320. [PMID: 37256894 DOI: 10.1371/journal.pone.0286320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 05/15/2023] [Indexed: 06/02/2023] Open
Abstract
Thermophilic composting is a promising soil and waste management approach involving diverse micro and macro-organisms, including eukaryotes. Due to sub-optimal amounts of nutrients in manure, supplemental feedstock materials such as Lantana camara, and Tithonia diversifolia twigs are used in composting. These materials have, however, been reported to have antimicrobial activity in in-vitro experiments. Furthermore, the phytochemical analysis has shown differences in their complexities, thus possibly requiring various periods to break down. Therefore, it is necessary to understand these materials' influence on the biological and physical-chemical stability of compost. Most compost microbiome studies have been bacterial-centric, leaving out eukaryotes despite their critical role in the environment. Here, the influence of different green feedstock on the fungal and non-fungal eukaryotic community structure in a thermophilic compost environment was examined. Total community fungal and non-fungal eukaryotic DNA was recovered from triplicate compost samples of four experimental regimes. Sequencing for fungal ITS and non-fungal eukaryotes; 18S rDNA was done under the Illumina Miseq platform, and bioinformatics analysis was done using Divisive Amplicon Denoising Algorithm version 2 workflow in R version 4.1. Samples of mixed compost and composting day 84 recorded significantly (P<0.05) higher overall fungal populations, while Lantana-based compost and composting day 84 revealed the highest fungal community diversity. Non-fungal eukaryotic richness was significantly (P< 0.05) more abundant in Tithonia-based compost and composting day 21. The most diverse non-fungal eukaryotic biome was in the Tithonia-based compost and composting day 84. Sordariomycetes and Holozoa were the most contributors to the fungal and non-fungal community interactions in the compost environment, respectively. The findings of this study unravel the inherent influence of diverse composting materials and days on the eukaryotic community structure and compost's biological and chemical stability.
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Affiliation(s)
- Felix Matheri
- Department of Biochemistry, Microbiology, and Biotechnology, Kenyatta University (KU), Nairobi, Kenya
- International Centre for Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Anne Kelly Kambura
- Department of Agricultural Sciences, Taita Taveta University (TTU), Voi, Kenya
| | - Maina Mwangi
- Department of Biochemistry, Microbiology, and Biotechnology, Kenyatta University (KU), Nairobi, Kenya
| | - Edward Karanja
- International Centre for Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Noah Adamtey
- Research Institute of Organic Agriculture (FiBL), Frick, Switzerland
| | - Kennedy Wanjau
- International Livestock Research Institute (ILRI), Department Animal and Human Health, Nairobi, Kenya
| | - Edwin Mwangi
- International Centre for Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | | | - David Bautze
- Research Institute of Organic Agriculture (FiBL), Frick, Switzerland
| | - Steven Runo
- Department of Biochemistry, Microbiology, and Biotechnology, Kenyatta University (KU), Nairobi, Kenya
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Gong X, Yu Y, Hao Y, Wang Q, Ma J, Jiang Y, Lv G, Li L, Qian C. Characterizing corn-straw-degrading actinomycetes and evaluating application efficiency in straw-returning experiments. Front Microbiol 2022; 13:1003157. [PMID: 36545193 PMCID: PMC9760696 DOI: 10.3389/fmicb.2022.1003157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/16/2022] [Indexed: 12/10/2022] Open
Abstract
Corn straw is an abundant lignocellulose resource and by-product of agricultural production. With the continuous increase in agricultural development, the output of corn straw is also increasing significantly. However, the inappropriate disposal of straw results in wasting of resources, and also causes a serious ecological crisis. Screening microorganisms with the capacity to degrade straw and understanding their mechanism of action is an efficient approach to solve such problems. For this purpose, our research group isolated three actinomycete strains with efficient lignocellulose degradation ability from soil in the cold region of China: Streptomyces sp. G1T, Streptomyces sp. G2T and Streptomyces sp. G3T. Their microbial properties and taxonomic status were assessed to improve our understanding of these strains. The three strains showed typical characteristics of the genus Streptomyces, and likely represent three different species. Genome functional annotation indicated that most of their genes were related to functions like carbohydrate transport and metabolism. In addition, a similar phenomenon also appeared in the COG and CAZyme analyses, with a large number of genes encoding carbohydrate-related hydrolases, such as cellulase, glycosidase and endoglucanase, which could effectively destroy the structure of lignocellulose in corn straw. This unambiguously demonstrated the potential of the three microorganisms to hydrolyze macromolecular polysaccharides at the molecular level. In addition, in the straw-returning test, the decomposing consortium composed of the three Streptomyces isolates (G123) effectively destroyed the recalcitrant bonds between the various components of straw, and significantly reduced the content of active components in corn straw. Furthermore, microbial diversity analysis indicated that the relative abundance of Proteobacteria, reportedly associated with soil antibiotic resistance and antibiotic degradation, was significantly improved with straw returning at both tested time points. The microbial diversity of each treatment was also dramatically changed by supplementing with G123. Taken together, G123 has important biological potential and should be further studied, which will provide new insights and strategies for appropriate treatment of corn straw.
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Affiliation(s)
- Xiujie Gong
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Yang Yu
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Yubo Hao
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Qiuju Wang
- Heilongjiang Academy of Black Soil Conservation and Utilization, Harbin, China
| | - Juntao Ma
- Institute of Biotechnology, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Yubo Jiang
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Guoyi Lv
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Liang Li
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Chunrong Qian
- Institute of Farming and Cultivation, Heilongjiang Academy of Agricultural Sciences, Harbin, China,*Correspondence: Chunrong Qian,
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