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Qiao C, Penton CR, Liu C, Tao C, Deng X, Ou Y, Liu H, Li R. Patterns of fungal community succession triggered by C/N ratios during composting. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123344. [PMID: 32652420 DOI: 10.1016/j.jhazmat.2020.123344] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/15/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Accumulating evidence indicates that the functional rather than taxonomic composition of microbial communities is closely correlated to local environmental factors. While composting is a widely accepted practice, specific knowledge of how fungal functional groups interact during the composting process remains limited. To address this, the impact of the initial C/N ratio of composting material on fungal community was analyzed in order to reveal the succession of functional diversity. Compared with the raw materials, the final composting product significantly reduced the relative abundances of plant and animal pathogens. Abundances of plant and animal pathogens, as well as dung saprotrophs, were negatively correlated with compost maturity, while abundances of wood saprotrophs exhibited positive correlations. Specific OTUs that showing highly abundant in each treatment were expected to compete for environmental preferences (niches) and/or interact with each other in positive (facilitative) ways. OTU2 (wood saprotroph) exhibiting the highest occurrence was negatively related to OTU7 (animal pathogen) and OTU4 (plant pathogen) during the mesophilic phase. Taken together, high-efficiency composting is represented as pattern variations of fungal community with a process of gradual decline of plant and animal pathogens as well as dung saprotrophs.
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Affiliation(s)
- Cece Qiao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China; Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, PR China; College of Integrative Sciences and Arts, Arizona State University, Mesa, AZ, USA
| | - C Ryan Penton
- College of Integrative Sciences and Arts, Arizona State University, Mesa, AZ, USA; Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Chao Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Chengyuan Tao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Xuhui Deng
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Yannan Ou
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Hongjun Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Rong Li
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
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Abdellah YAY, Li T, Chen X, Cheng Y, Sun S, Wang Y, Jiang C, Zang H, Li C. Role of psychrotrophic fungal strains in accelerating and enhancing the maturity of pig manure composting under low-temperature conditions. BIORESOURCE TECHNOLOGY 2021; 320:124402. [PMID: 33212385 DOI: 10.1016/j.biortech.2020.124402] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/04/2020] [Accepted: 11/07/2020] [Indexed: 06/11/2023]
Abstract
This study investigatedthe effects of applying psychrotrophic cellulose-degrading fungion cellulase production, fungal community structure, and maturity of pig manure (PM) compost under low-temperature conditions. Three psychrotrophic fungal strains were isolated and identified, and after the cold-active cellulase production conditions were optimized, they were inoculated into PM compost. While the control (CK) compost temperature failed to reachthe thermophilic stage, the inoculated compost temperature reached it within 3 days and was maintained for up to 17 days. Fungal inoculants improved fungal community structure at the end of composting, as suggested by network analysis. Principal component analysis revealed that the germination index (GI), total phosphorus (TP), total potassium (TK), and total nitrogen (TN) were the most influential physicochemical parameters affecting compost maturity. The results of the compost products reflected the suitability of the compost as a fertilizer. This study indicated that newly identified strains positively impacted composting at low temperatures.
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Affiliation(s)
| | - Tianzhu Li
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Xi Chen
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Yi Cheng
- College of Science, China Agricultural University, Beijing 100083, PR China
| | - Shanshan Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Yue Wang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Cheng Jiang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Hailian Zang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China
| | - Chunyan Li
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, Heilongjiang, PR China.
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Wang X, Kong Z, Wang Y, Wang M, Liu D, Shen Q. Insights into the functionality of fungal community during the large scale aerobic co-composting process of swine manure and rice straw. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 270:110958. [PMID: 32721362 DOI: 10.1016/j.jenvman.2020.110958] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
Composting is a cost-efficient method of transferring various unstable and complex organic matters into a stable and humus-like substance, during which various fungus play a critical role in the decomposition of organic matters. In this study, the rice straw and swine manure co-composting were carried out in a pilot-scale, and the evolution of various biochemical parameters and fungi community were detected at different time points. The results showed that most of the parameters fluctuated strongly at the thermophilic phase (THP), and the Canonical Correlation Analysis (CCA) results showed that Mycothermus spp. and Aspergillus spp. were with abundances of 47.82% and 3.51%, respectively, which were considered as the core fungi during the composting process. In addition, five culturable thermophilic filamentous fungi were isolated from the samples obtained at the high temperature stage, among which Aspergillus fumigatus were considered as the core specie at this special phase. The capacity of lignocellulose degradation of this strains was also evaluated by analyzing the secretomes in a coculture group with rice straw and crystalline cellulose as carbon sources, and the identified proteins illustrated that the enzymes were chiefly secreted by A. fumigatus in both treatments, with the abundances of 91.41% and 85.19%, respectively.
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Affiliation(s)
- Xuanqing Wang
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Zhijian Kong
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Yonghong Wang
- Technology Center, China Tobacco Shanxi Industrial Co., Ltd, Baoji, 721013, PR China
| | - Mengmeng Wang
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
| | - Dongyang Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China.
| | - Qirong Shen
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, PR China
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Li S, Li T, Jin Y, Qin X, Tian J, Zhang L. Antidepressant-Like Effects of Coumaroylspermidine Extract From Safflower Injection Residues. Front Pharmacol 2020; 11:713. [PMID: 32625082 PMCID: PMC7311797 DOI: 10.3389/fphar.2020.00713] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 04/30/2020] [Indexed: 11/13/2022] Open
Abstract
In this study, a total coumaroylspermidine extract (CSE), which included four coumaroylspermidine compounds, was prepared from safflower injection (a traditional Chinese medicine) residues for the first time. The total content of the four coumaroylspermidine compounds was determined to be 64.86 ± 0.41% using high-performance liquid chromatography. We then evaluated the anti-depressant effect of CSE by using a chronic unpredictable mild stress (CUMS) model in rats. Results of sucrose preference tests, open field tests, and forced swimming tests suggest that CSE exhibits a significant anti-depressant effect. In studies to explore the mechanism, CSE was found to inhibit the increases in levels of corticosterone and decreases in levels of 5-hydroxytryptamine, dopamine, and noradrenaline induced by CUMS. Metabolic profiling showed that 10 endogenous metabolites and four metabolic pathways were altered after CSE treatment. Thus, this study not only found a spermidine extract with antidepressant effect from safflower injection residue for the first time but also provided a way for the efficient utilize of safflower injection residue.
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Affiliation(s)
- Shifei Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, China
| | - Ting Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, China
| | - Yufang Jin
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, China
| | - Xuemei Qin
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Junsheng Tian
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Liwei Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan, China
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Di Piazza S, Houbraken J, Meijer M, Cecchi G, Kraak B, Rosa E, Zotti M. Thermotolerant and Thermophilic Mycobiota in Different Steps of Compost Maturation. Microorganisms 2020; 8:microorganisms8060880. [PMID: 32545162 PMCID: PMC7355412 DOI: 10.3390/microorganisms8060880] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 01/23/2023] Open
Abstract
Composting is a complex process in which various micro-organisms, mainly fungi and bacteria, are involved. The process depends on a large number of factors (biological, chemical, and physical) among which microbial populations play a fundamental role. The high temperatures that occur during the composting process indicate the presence of thermotolerant and thermophilic micro-organisms that are key for the optimization of the process. However, the same micro-organisms can be harmful (allergenic, pathogenic) for workers that handle large quantities of material in the plant, and for end users, for example, in the indoor environment (e.g., pots in houses and offices). Accurate knowledge of thermotolerant and thermophilic organisms present during the composting stages is required to find key organisms to improve the process and estimate potential health risks. The objective of the present work was to study thermotolerant and thermophilic mycobiota at different time points of compost maturation. Fungi were isolated at four temperatures (25, 37, 45, and 50 °C) from compost samples collected at five different steps during a 21-day compost-maturation period in an active composting plant in Liguria (northwestern Italy). The samples were subsequently plated on three different media. Our results showed a high presence of fungi with an order of magnitude ranging from 1 × 104 to 3 × 105 colony-forming units (CFU) g−1. The isolated strains, identified by means of specific molecular tools (ITS, beta-tubulin, calmodulin, elongation factor 1-alpha, and LSU sequencing), belonged to 45 different species. Several thermophilic species belonging to genera Thermoascus and Thermomyces were detected, which could be key during composting. Moreover, the presence of several potentially harmful fungal species, such as Aspergillus fumigatus, A. terreus, and Scedosporium apiospermum, were found during the whole process, including the final product. Results highlighted the importance of surveying the mycobiota involved in the composting process in order to: (i) find solutions to improve efficiency and (ii) reduce health risks.
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Affiliation(s)
- Simone Di Piazza
- Laboratory of Mycology, DISTAV Department of Earth, Environmental and Life Science, University of Genoa, Corso Europa 26, 16132 Genoa, Italy; (G.C.); (E.R.); (M.Z.)
- Correspondence:
| | - Jos Houbraken
- Applied and Industrial Mycology, Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (J.H.); (M.M.); (B.K.)
| | - Martin Meijer
- Applied and Industrial Mycology, Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (J.H.); (M.M.); (B.K.)
| | - Grazia Cecchi
- Laboratory of Mycology, DISTAV Department of Earth, Environmental and Life Science, University of Genoa, Corso Europa 26, 16132 Genoa, Italy; (G.C.); (E.R.); (M.Z.)
| | - Bart Kraak
- Applied and Industrial Mycology, Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (J.H.); (M.M.); (B.K.)
| | - Ester Rosa
- Laboratory of Mycology, DISTAV Department of Earth, Environmental and Life Science, University of Genoa, Corso Europa 26, 16132 Genoa, Italy; (G.C.); (E.R.); (M.Z.)
| | - Mirca Zotti
- Laboratory of Mycology, DISTAV Department of Earth, Environmental and Life Science, University of Genoa, Corso Europa 26, 16132 Genoa, Italy; (G.C.); (E.R.); (M.Z.)
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56
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Fungal bio-aerosol in multiple micro-environments from eastern India: source, distribution, and health hazards. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2323-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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57
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Jiang X, Deng L, Meng Q, Sun Y, Han Y, Wu X, Sheng S, Zhu H, Ayodeji B, Egbeagu UU, Xu X. Fungal community succession under influence of biochar in cow manure composting. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9658-9668. [PMID: 31925688 DOI: 10.1007/s11356-019-07529-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/25/2019] [Indexed: 06/10/2023]
Abstract
This study examined the influence of biochar addition on fungal community during composting of cow manure using high-throughput sequencing. Two treatments were set up, including compost of cow manure plus 10% biochar (BC) and cow manure compost without biochar (CK). Fungal community composition varied obviously during composting in both treatments, and main fungi included Aspergillus, Myriococcum, Thermomyces, Mycothermus, Scedosporium, Cladosporium, and unclassified Microascaceae. Fungal community composition was altered by biochar during composting, especially during the thermophilic and the cooling phase, promoting Aspergillus and Myriococcum while inhibiting unclassified Microascaceae and Thermomyces. Based on linear discriminant analysis effect size analysis, common indicator groups were detected in both composts; however, specific indicator groups were also found in BC treatment, including Clavicipitaceae, Tremellales, Gibberella, and Coprinopsis. Canonical correspondence analysis (CCA) indicated that moisture content, organic matter, C/N, and pH had significant correlation (p < 0.05) with fungal composition in both treatments. However, in compost added with biochar, temperature was not an important factor affecting fungal community (p > 0.05).
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Affiliation(s)
- Xin Jiang
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Liting Deng
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Qingxin Meng
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yu Sun
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yue Han
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xiaotong Wu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Siyuan Sheng
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Haifeng Zhu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Bello Ayodeji
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ugochi Uzoamaka Egbeagu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xiuhong Xu
- College of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
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58
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Gómez-Silván C, Andersen GL, Calvo C, Aranda E. Assessment of bacterial and fungal communities in a full-scale thermophilic sewage sludge composting pile under a semipermeable cover. BIORESOURCE TECHNOLOGY 2020; 298:122550. [PMID: 31837577 DOI: 10.1016/j.biortech.2019.122550] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 05/15/2023]
Abstract
Bacterial and fungal communities in a full-scale composting pile were investigated, with sewage sludge and a vegetal bulking agent as starting materials. Bacillales and Actinomycetales were predominant throughout the process, showing significant abundance. Ascomycota was the predominant fungal phylum during the thermophilic phase, with a shift to Basidiomycota at the end of the process. The bulking material was the principal contributor to both communities by the end of the process, with a signal above 50%. The presence of genera, such as Pedomicrobium, Ureibacillus and Tepidimicrobium at the end of the process, and Chaetomium and Arthrographis in the maturation phase, showed an inverse correlation with indicators of organic matter stabilisation. A semipermeable cover was an effective technology for excluding pathogens. These results indicate that changes in the microbial population and their interrelation with operational variables could represent a useful tool for monitoring composting processes.
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Affiliation(s)
- Cinta Gómez-Silván
- Department of Environmental Science, Policy, & Management (ESPM), University of California at Berkeley, Berkeley, CA 94710, United States; Environmental Genomics and Systems Biology (EGSB), Lawrence Berkeley National Laboratory, 717 Potter St, bld. 977, Berkeley, CA 94710, United States
| | - Gary L Andersen
- Department of Environmental Science, Policy, & Management (ESPM), University of California at Berkeley, Berkeley, CA 94710, United States; Environmental Genomics and Systems Biology (EGSB), Lawrence Berkeley National Laboratory, 717 Potter St, bld. 977, Berkeley, CA 94710, United States
| | - Concepción Calvo
- Department of Microbiology, Institute of Water Research, University of Granada, Ramón y Cajal, 4, Granada 18071, Spain; Department of Microbiology, Faculty of Pharmacy, University of Granada, Spain.
| | - Elisabet Aranda
- Department of Microbiology, Institute of Water Research, University of Granada, Ramón y Cajal, 4, Granada 18071, Spain; Department of Microbiology, Faculty of Pharmacy, University of Granada, Spain
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Li J, Bao H, Xing W, Yang J, Liu R, Wang X, Lv L, Tong X, Wu F. Succession of fungal dynamics and their influence on physicochemical parameters during pig manure composting employing with pine leaf biochar. BIORESOURCE TECHNOLOGY 2020; 297:122377. [PMID: 31734062 DOI: 10.1016/j.biortech.2019.122377] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/28/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
The effects of pine leaf biochar (PLB) on fungal community during pig manure composting were investigated. Five different doses of PLB [0% (T1), 2.5% (T2), 5% (T3), 10% (T4) and 15% (T5)] were mixed with mixture of pig manure and sawdust (2:1) for 50 days of composting. The present results indicated that fungal diversity increased more obvious in biochar amendment treatments than control (T1) and that the highest was recorded in T4 treatment. Basidiomycota, Ascomycota and Mucoromycota were the most three abundant phyla in all the treatments, while Heterobasidion, Pezoloma, Mucor, Geastrum, Talaromyces and Cystofilobasidium were the richness genera. In addition, network analysis indicated that fungal community abundance was significantly (p < 0.05) associated with temperature, pH, CO2 and CH4 emission and the seed germination index. In summary, the 10% PLB amendment (T4) was a potential option to strengthen fungal diversity and improve the composting efficiency as well as compost quality.
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Affiliation(s)
- Jiao Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Huanyu Bao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technologv (SKLUWRE, HIT), Harbin 150090, China
| | - Wenjing Xing
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Jing Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Ruifang Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xin Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Lihui Lv
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xiaogang Tong
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fuyong Wu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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60
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Tortosa G, Torralbo F, Maza-Márquez P, Aranda E, Calvo C, González-Murua C, Bedmar EJ. Assessment of the diversity and abundance of the total and active fungal population and its correlation with humification during two-phase olive mill waste (''alperujo") composting. BIORESOURCE TECHNOLOGY 2020; 295:122267. [PMID: 31648128 DOI: 10.1016/j.biortech.2019.122267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 05/22/2023]
Abstract
Metagenomic and transcriptomic techniques applied to composting could increase our understanding of the overall microbial ecology and could help us to optimise operational conditions which are directly related with economic interest. In this study, the fungal diversity and abundance of two-phase olive mill waste ("alperujo") composting was studied using Illumina MiSeq sequencing and quantitative PCR, respectively. The results showed an increase of the fungal diversity during the process, with Ascomycota being the predominant phylum. Penicillium was the main genera identified at the mesophilic and maturation phases, with Debaryomyces and Sarocladium at the thermophilic phase, respectively. The fungal abundance was increased during composting, which confirms their important role during thermophilic and maturation phases. Some Basidiomycota showed an increased during the process, which showed a positive correlation with the humification parameters. According to that, the genus Cystofilobasidium could be used as a potential fungal biomarker to assess alperujo compost maturation.
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Affiliation(s)
- Germán Tortosa
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, c/Profesor Albareda, 1, 18008 Granada, Spain
| | - Fernando Torralbo
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena, s/n, 48940 Leioa, Bizkaia, Spain
| | - Paula Maza-Márquez
- Institute of Water Research, University of Granada, Edificio Fray Luis, c/Ramón y Cajal, 4, 18071 Granada, Spain; Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n, 18071 Granada, Spain
| | - Elisabet Aranda
- Institute of Water Research, University of Granada, Edificio Fray Luis, c/Ramón y Cajal, 4, 18071 Granada, Spain; Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n, 18071 Granada, Spain.
| | - Concepción Calvo
- Institute of Water Research, University of Granada, Edificio Fray Luis, c/Ramón y Cajal, 4, 18071 Granada, Spain; Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n, 18071 Granada, Spain
| | - Carmen González-Murua
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena, s/n, 48940 Leioa, Bizkaia, Spain
| | - Eulogio J Bedmar
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín (EEZ), Agencia Estatal CSIC, c/Profesor Albareda, 1, 18008 Granada, Spain
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Hu T, Wang X, Zhen L, Gu J, Zhang K, Wang Q, Ma J, Peng H, Lei L, Zhao W. Effects of inoculating with lignocellulose-degrading consortium on cellulose-degrading genes and fungal community during co-composting of spent mushroom substrate with swine manure. BIORESOURCE TECHNOLOGY 2019; 291:121876. [PMID: 31377509 DOI: 10.1016/j.biortech.2019.121876] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Composting is used widely for recycling spent mushroom substrate (SMS). This study investigated the effects of inoculating a lignocellulose-degrading consortium at two levels comprising 0% (control: CK) and 10% (T) on the fungal community and cellulose-degrading genes during SMS co-composting with swine manure. Lignocellulose degradation rate in T was 8.77-34.45% higher compared with CK. Inoculation affected the distribution of the fungal community, increased the community diversity, and inhibited pathogens. Network analysis showed that inoculation changed the co-occurrence patterns of the fungal communities and made the co-composting system more stable. The relative abundances of glycoside hydrolase genes GH3E (fungal GH3), GH6, and GH7 were 0.45, 0.09, and 0.39 logs higher in T, respectively, than CK. Partial least-squares path modeling suggested that the variations in cellulose-degrading genes were driven mainly by changes in the fungal community during co-composting. Therefore, the lignocellulose-degrading consortium accelerated the transformation of lignocellulose to facilitate safer composting.
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Affiliation(s)
- Ting Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Shaanxi Province Institute of Microbiology, Xian, Shaanxi 710043, China
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lisha Zhen
- Shaanxi Province Institute of Microbiology, Xian, Shaanxi 710043, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Kaiyu Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qianzhi Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiyue Ma
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huiling Peng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liusheng Lei
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenya Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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Wang J, Liu Z, Xia J, Chen Y. Effect of microbial inoculation on physicochemical properties and bacterial community structure of citrus peel composting. BIORESOURCE TECHNOLOGY 2019; 291:121843. [PMID: 31357046 DOI: 10.1016/j.biortech.2019.121843] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
In this study, microorganisms were inoculated during citrus peel composting for citrus waste recycling and valorisation. The physicochemical properties and the bacterial community structure of citrus peel composting inoculated microorganism were studied. The thermophilic stage of pilot-scale composting (T2) was 20 days longer than lab-scale composting (T1). C/N, organic matter, moisture, pectin and cellulose content decreased along with composing process, but the pH, soluble protein and total nutrient showed an opposite trend. The inoculation improved the richness and diversity of the bacterial community and the diversity index reached maximum on 21 days. As composting progress, Bacillus, Sphingobacterium and Saccharomonospora in inoculum became the dominant genus. Redundancy analysis showed that C/N, pectin degradation rate and temperature could explain 30.1%, 24.9% and 15.6% of the variation in bacterial genera, respectively.
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Affiliation(s)
- Jiaqin Wang
- School of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing 400045, China
| | - Zhiping Liu
- School of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing 400045, China.
| | - Jiashuai Xia
- School of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing 400045, China
| | - Youpeng Chen
- School of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing 400045, China
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Qiao C, Ryan Penton C, Liu C, Shen Z, Ou Y, Liu Z, Xu X, Li R, Shen Q. Key extracellular enzymes triggered high-efficiency composting associated with bacterial community succession. BIORESOURCE TECHNOLOGY 2019; 288:121576. [PMID: 31176934 DOI: 10.1016/j.biortech.2019.121576] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 05/22/2023]
Abstract
A consortium of key bacterial taxa plays critical roles in the composting process. In order to elucidate the identity and mechanisms by which specific bacterial species drive high-efficiency composting, the succession of key bacterial consortia and extracellular enzymes produced during the composting process were monitored in composting piles with varying initial C/N ratios. Results showed that C/N ratios of 25 and 35 enhanced composting efficiency through elevated temperatures, higher germination indices, enhanced cellulose and hemicellulose degradation, and higher cellulase and dehydrogenase activities. The activities of cellulase and β-glucosidase, cellulase and protease, and cellulase and β-glucosidase exhibited significant relationships with bacterial community composition within the mesophilic, thermophilic, and mature phases, respectively. Putative key taxa, linked to a higher composting efficiency, such as Nonomuraea, Desemzia, Cellulosimicrobium, Virgibacillus, Clostridium, and Achromobacter, exhibited significantly positive relationships with extracellular enzyme activities, suggesting a significant contribution to these taxa to the development of composting maturity.
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Affiliation(s)
- Cece Qiao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China; College of Integrative Sciences and Arts, Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Mesa, AZ, USA
| | - C Ryan Penton
- College of Integrative Sciences and Arts, Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Mesa, AZ, USA
| | - Chao Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Zongzhuan Shen
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Yannan Ou
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Zhengyang Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Xu Xu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Rong Li
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China.
| | - Qirong Shen
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
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Zhang S, Chang S, Xiao P, Qiu S, Ye Y, Li L, Yan H, Guo S, Duan J. Enzymatic in situ saccharification of herbal extraction residue by a medicinal herbal-tolerant cellulase. BIORESOURCE TECHNOLOGY 2019; 287:121417. [PMID: 31076294 DOI: 10.1016/j.biortech.2019.121417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Herbel-tolerant strains exhibit considerable environmental and commercial values not only due to their harmless treatment of herbal-extraction residues (HERs) but also because of their use in preparing high-quality cellulase cocktails. In this study, three typical HERs were evaluated for enzymatic in situ saccharification performance. A HERs-tolerance fungus, identified as Penicillium oxalicum G2, can grow in 1.5% (w/v) Radix isatidis residues (RIR), thereby exhibiting the highest FPase (2.2 U/mL), carboxymethyl cellulase (13.3 U/mL), and β-glucosidase (4.6 U/mL) activities. The most effective production of cellulase cocktail was achieved via orthogonal experiment in a system with pH 6.0, 30 °C, and 96 h. Cellulase cocktail from P. oxalicum G2 can directly saccharify the extraction RIR, thereby achieving a maximum reducing sugar yield of 7.2 mg/mL, which is 1.7-fold higher than those of commercial cellulases. Results illustrate the potential of P. oxalicum G2 for enzymatic in situ saccharification.
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Affiliation(s)
- Sen Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Siyuan Chang
- School of Biology and Environment, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China; School of Pharmaceutical Sciences, Nanjing Tech University, 30 Puzhunan Road, Nanjing 211816, Jiangsu, China
| | - Ping Xiao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Shouzhe Qiu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yin Ye
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lizhi Li
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Hui Yan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.
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Yang X, Song Z, Zhou S, Guo H, Geng B, Peng X, Zhao G, Xie Y. Insights into functional microbial succession during nitrogen transformation in an ectopic fermentation system. BIORESOURCE TECHNOLOGY 2019; 284:266-275. [PMID: 30952054 DOI: 10.1016/j.biortech.2019.03.135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
The ectopic fermentation system (EFS) is an advanced technology for treating farm wastewater, and it reduces ammonia nitrogen emission and nitrogen loss of fermentation products. This study observed the functional bacteria succession related to nitrogen metabolism in EFS by high throughput sequencing, and evaluated their associations with environmental factors. Results revealed that with the changes of temperature, pH, moisture content, and nitrogen content during fermentation, the species richness and diversity of ammonia oxidizing bacteria (AOB) with amoA increased, but those of denitrifying bacteria carrying nirK and nosZ decreased. During the fermentation process, the dominant bacterial populations of AOB and denitrifying bacteria changed significantly, and different bacterial populations showed different positive/negative correlations with the environmental factors. This study revealed the role of functional bacteria in ammonia removal and nitrogen conservation of EFS, and provided a theoretical basis for the improvement of microbial agents and EFS application.
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Affiliation(s)
- Xiaotong Yang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Zhen Song
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (IEDA, CAAS), Beijing, China
| | - Sihan Zhou
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Hui Guo
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
| | - Bing Geng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (IEDA, CAAS), Beijing, China
| | - Xiawei Peng
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Guozhu Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yijia Xie
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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66
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Kong W, Huang C, Shi J, Li Y, Jiang X, Duan Q, Huang Y, Duan Y, Zhu X. Recycling of Chinese herb residues by endophytic and probiotic fungus Aspergillus cristatus CB10002 for the production of medicinal valuable anthraquinones. Microb Cell Fact 2019; 18:102. [PMID: 31164126 PMCID: PMC6547571 DOI: 10.1186/s12934-019-1150-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/28/2019] [Indexed: 12/15/2022] Open
Abstract
Background The global prevalence of traditional Chinese medicine stimulates the prosperous development of herb medicines, but the annual generation of massive herb residues becomes big issues about environmental pollution and waste of resources. Microbes play important roles in the circulation of substances in nature, and endophytes represent an underexplored microbial resource possessing the unique symbiotic relationship with plants, not only for discovery of secondary metabolites, but also for potential green recycling of herb residues. Results The recycling capacities of several endophytic strains were respectively evaluated via solid state fermentation with herb residues of commercial Huazhenghuisheng oral-liquid (HOL). Among them, Aspergillus cristatus CB10002, a probiotic fungus isolated from Chinese Fu-brick tea, was competent to recycle HOL residues for the production of medicinal valuable anthraquinones, in which four of them, especially citreorosein with significant anti-obesity activity, were first discovered in A. cristatus. Subsequent quantitative analysis showed that about 2.0 mg/g citreorosein and 7.5 mg/g total anthraquinones could be obtained after 35-day fermentation, which was very competitive and economically beneficial. Further nutritional comparisons also revealed that the recycling process indeed ameliorated the nutrients of HOL residues, and thus proposed a possibility to directly dispose the final leftovers as a compost organic fertilizer. Conclusions The endophytic and probiotic fungus A. cristatus CB10002 isolated from Chinese Fu-brick tea was screened out to effectively reutilize HOL residues for the production of nine medicinal valuable anthraquinones, whose biosynthesis may be regulated by the induction of HOL residues. The competitive yields of these anthraquinones, as well as the certain composting properties of final leftovers, have made the microbial recycling of HOL residues economically beneficial. Our work demonstrated a promising applied potential of A. cristatus in reutilization of herb residues, and provided a practical strategy for sustainable and value-added microbial recycling of herb residues. Electronic supplementary material The online version of this article (10.1186/s12934-019-1150-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wenping Kong
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Chengshuang Huang
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Jie Shi
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Yu Li
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China
| | - Xinxin Jiang
- Hayaocihang Pharmaceutical Co. Ltd, Changsha, 410205, Hunan, China
| | - Quwen Duan
- Hayaocihang Pharmaceutical Co. Ltd, Changsha, 410205, Hunan, China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China.,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, 410013, Hunan, China
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China. .,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, 410205, Hunan, China. .,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, 410013, Hunan, China.
| | - Xiangcheng Zhu
- Xiangya International Academy of Translational Medicine, Central South University, Tongzipo Road, #172, Yuelu District, Changsha, 410013, Hunan, China. .,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha, 410205, Hunan, China. .,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, 410013, Hunan, China.
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Jiang J, Pan Y, Yang X, Liu J, Miao H, Ren Y, Zhang C, Yan G, Lv J, Li Y. Beneficial influences of pelelith and dicyandiamide on gaseous emissions and the fungal community during sewage sludge composting. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8928-8938. [PMID: 30715712 DOI: 10.1007/s11356-019-04404-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
Reducing the emissions of NH3 and greenhouse gases (GHGs) during composting is essential for improving compost quality and controlling environmental pollution. This paper investigates the effects of pelelith (P) combined with dicyandiamide (DCD) on gaseous emissions and the fungal community diversity during sewage sludge (SS) composting. Results showed that the P and P + DCD treatments decreased the cumulative gaseous emissions by 41% and 22% for NH3, 21% and 34% for N2O, and 31.5% and 33.0% for CH4, respectively. The evolution of the fungal community analysis showed that Ascomycota and unclassified fungi dominated during the thermophilic stage, while only Ascomycota was the dominant fungal phylum during the maturity stage, composing 62%, 66%, and 73% of the total fungal community in the control, P, and P + DCD, respectively. The P and P + DCD significantly increased the fungal community richness at the genus level. Fungal community abundance was found to be significantly related to temperature, pH, organic matter, and total Kjeldahl nitrogen, which also influence the gaseous emissions during SS composting. It suggested that the combined addition of pelelith and dicyandiamide (DCD) was an effective method for reducing the emissions of NH3 and greenhouse gases during SS composting.
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Affiliation(s)
- Jishao Jiang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China.
| | - Youwei Pan
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Xianli Yang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Juan Liu
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Haohao Miao
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Yuqing Ren
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Chunyan Zhang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Guangxuan Yan
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Jinghua Lv
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Yunbei Li
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, Henan, China.
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Liu T, He J, Cui C, Tang J. Exploiting community structure, interactions and functional characteristics of fungi involved in the biodrying of storage sludge and beer lees. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 232:321-329. [PMID: 30496961 DOI: 10.1016/j.jenvman.2018.11.089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 11/09/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
In this study, the dynamic changes in fungal biodiversity, community structure, fungal associations and functional characteristics were investigated in the biodrying of storage sludge and beer lees by using high throughput sequencing, network and correlation matrix analyses, and FUNGuild database. Additionally, a hypothetical model was provided to better understand the biodrying system. The results showed that fungal diversity decreased after biodrying, while community richness increased in the mesophilic stage and decreased as biodrying progressed. Fungal communities differed in different stages of the biodrying process. Ascomycota and Basidiomycota were the dominant phyla throughout the biodrying process, while Pichia was the dominant genus in the thermophilic stage. Network and correlation matrix analyses provided useful tools for insight into the fungal interactions, allowing us to propose a conceptual model of how succession in fungal associations regulates the dynamics of biodrying systems. Biodrying treatment had a significant effect on fungal trophic modes, with most pathogenic fungi fading away over the process, illustrating that biodrying is an effective bio-treatment method to eliminate pathogenic fungi. These findings provide information that elucidates the fungal interactions and functional characteristics during the biodrying process.
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Affiliation(s)
- Tiantian Liu
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Junguo He
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Chongwei Cui
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Jian Tang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
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Duan Y, Awasthi SK, Liu T, Chen H, Zhang Z, Wang Q, Ren X, Tu Z, Awasthi MK, Taherzadeh MJ. Dynamics of fungal diversity and interactions with environmental elements in response to wheat straw biochar amended poultry manure composting. BIORESOURCE TECHNOLOGY 2019; 274:410-417. [PMID: 30551044 DOI: 10.1016/j.biortech.2018.12.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 06/09/2023]
Abstract
The fungal dynamics and its correlation with physicochemical and gaseous emission were investigated using metagenomics and Heat map illustrator (HEMI). Five different concentrations of wheat straw biochar (WSB) were applied to poultry manure (PM) and composted for 50 days; those without the WSB treatment were used as a control. The results revealed the dominant phyla to be Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota, while Batrachochytrium, Rhizophagus, Mucor, and Puccinia were the superior genera. In particular, the diversity of Chytridiomycota and Ascomycota was more abundant among all of the treatments. Overall, the diversity of the fungal species was correspondent, but relative abundance varied significantly among all of the composts. Principle Coordinate Analysis (PCoA) and Non-Metric Multi- Dimensional Scaling (NMDS) indicated that different concentrations of WSB applied treatments have significantly distinct fungal communities. In addition, correlation analyses of fungal interactions with environmental elements via HEMI also indicate a clear difference among the treatments. Ultimately, the relative abundance of fungal composition significantly influenced the PM compost treated by the WSB.
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Affiliation(s)
- Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Quan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Xiuna Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Zhineng Tu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China; Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.
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Duan Y, Awasthi SK, Chen H, Liu T, Zhang Z, Zhang L, Awasthi MK, Taherzadeh MJ. Evaluating the impact of bamboo biochar on the fungal community succession during chicken manure composting. BIORESOURCE TECHNOLOGY 2019; 272:308-314. [PMID: 30384205 DOI: 10.1016/j.biortech.2018.10.045] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to investigate the fungal community succession and variations in chicken manure (CM) compost with different concentration of bamboo biochar (BB) as additive via the using of metagenomics method. The consequent obviously revealed that Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota were the dominant phylum, while Batrachochytrium, Funneliformis, Mucor, Phizophagus and Pyronema were the pre-dominant genera in each treatment. Redundancy analyses indicated that higher dosage of biochar applied treatments has significant correlation between fungal communities and environmental factors. The diversity of fungal community was analogous but the relative abundance (RA) was inconsistent among the all treatments. In addition, the principal component analysis was also confirmed that T5 and T6 treatments have considerably correlation than other treatments. However, the mean value of RA remained maximum in higher dosage of biochar blended treatments. Ultimately, the RA of different fungal genus and species were influenced in CM compost by the BB amendment.
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Affiliation(s)
- Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Linsen Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
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71
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Liu T, Cui C, He J, Tang J. Insights into the succession of the bacterial microbiota during biodrying of storage sludge mixed with beer lees: Studies on its biodiversity, structure, associations, and functionality. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:1088-1100. [PMID: 30743822 DOI: 10.1016/j.scitotenv.2018.06.298] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/24/2018] [Accepted: 06/24/2018] [Indexed: 06/09/2023]
Abstract
Biodrying was first used for post-treatment of storage sludge mixed with beer lees. In this study, dynamic changes in dissolved organic matter (DOM), bacterial community structure, bacterial associations as well as metabolic functions were investigated using Excitation-Emission Matrix (EEM) spectra, high-throughput sequencing, network and correlation matrix analyses, and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt). Furthermore, a hypothetical model was proposed to better understand the biodrying process. The results showed that desired performance was obtained and DOM variations revealed that biodrying can increase biostability of the matrix. The bacterial communities differed among different stages of the biodrying. At the phylum level, the dominant phyla were Proteobacteria and Bacteroidetes in the mesophilic and cooling phases, whereas Firmicutes became the most dominant phylum in the thermophilic phase. At the genus level, the dominant bacteria in the mesophilic and cooling phases were not obvious, while Ureibacillus and Bacillus were the dominant genera in the thermophilic phase. Network and correlation matrix analyses were useful tools for insights into the bacterial interactions. PICRUSt metagenome inference indicated that metabolism, genetic information processing, and environmental information processing were the primary metabolic pathways. These results allowed us to advance a hypothetical model explaining how succession in bacterial associations regulates the dynamics of a biodrying system.
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Affiliation(s)
- Tiantian Liu
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Chongwei Cui
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Junguo He
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Jian Tang
- School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
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Du P, Wu X, Xu J, Dong F, Liu X, Zhang Y, Zheng Y. Clomazone influence soil microbial community and soil nitrogen cycling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:475-485. [PMID: 29990898 DOI: 10.1016/j.scitotenv.2018.06.214] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/17/2018] [Accepted: 06/17/2018] [Indexed: 06/08/2023]
Abstract
We designed an indoor mesocosm experiment to investigate the long-term effects of exposure to clomazone, a widely used herbicide, on soil microbial communities and their nitrogen (N) cycling functions. Clomazone was applied to two typical soils from China at three concentrations: 0.8 (the recommended dosage), 8 and 80 mg kg-1 soil dry weight, and the mix was incubated for 90 days. Samples were removed periodically for assay with several techniques. The half-lives of clomazone in this experiment were 11-126 d. Results were significant only for the highest clomazone concentration. Next-generation sequencing of the 16S and 18S rDNA genes revealed that bacterial diversity significantly decreased whereas fungal abundance increased after day 60 but with no detectable effect on the microbial community. Hierarchical cluster and principal coordinates analysis revealed that the bacterial community structure was negatively impacted. Linear discriminant analysis of effect size identified Sphingomonas and Arthrobacter as the predominant bacterial species. Finally, we measured soil NH4+ and NO3- concentrations and used real-time PCR to analyze the abundance of the N-cycling genes, nifH and amoA. In the first 30 days, the NO3--N content and the number of ammonia-oxidizing bacteria increased. N2-fixing bacteria were inhibited after 60 days, but the NH4+-N concentration remained unchanged and was likely provided by ammoniation.
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Affiliation(s)
- Pengqiang Du
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China; College of Chemistry, Central China Normal University, No. 152 Luoyu Road, Wuhan 430079, China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China; Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, China.
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China; Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety, Ministry of Agriculture and Rural Affairs of the People's Republic of China, China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Ying Zhang
- Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100193, China
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73
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A microbial community snapshot of windrows from a commercial composting facility. Appl Microbiol Biotechnol 2018; 102:8069-8077. [PMID: 29982928 DOI: 10.1007/s00253-018-9201-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 12/18/2022]
Abstract
The effect of depth on compost microbial communities is unclear but could be relevant to the management of windrows at commercial facilities. DNA extracted from 64 compost samples from seven windrows at a commercial facility were analyzed via deep 16S rRNA gene sequencing. The relative abundance of eight to nine genera was affected by depth during the transition from cooling to maturation phases between 4 and 6 months, whereas very few genera (0-1) showed a depth dependence in young, actively managed windrows or in mature windrows older than 10 months. Seven novel bacterial operational taxonomic units (OTUs) were detected in compost DNA and also in publicly available compost metagenomes. A compost metagenome was used to construct a metagenome-assembled genome for most of the abundant uncharacterized OTU in our samples and suggests its involvement in carbon cycling.
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Du P, Wu X, Xu J, Dong F, Liu X, Zheng Y. Effects of trifluralin on the soil microbial community and functional groups involved in nitrogen cycling. JOURNAL OF HAZARDOUS MATERIALS 2018; 353:204-213. [PMID: 29674095 DOI: 10.1016/j.jhazmat.2018.04.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/13/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
Large amounts of trifluralin are applied each year for weed control; however, its effects on soil microbial communities and functions are unknown. Two agricultural soils, one silty loam and one silty clay were spiked with TFL (0, 0.84, 8.4, and 84 mg kg-1) and studied the effects using a laboratory microcosm approach. The half-lives were 44.19-61.83 d in all cases. Bacterial abundance increased 1.12-5.56 times by TFL, but the diversity decreased. From the next-generation sequencing results, TFL altered the bacterial community structure, which initially diverged from the control community structure, then recovered, and then diverged again. Linear discriminant analysis effect size indicated that Sphingomonas and Xanthomonadaceae were the predominant species on day 7 and 15 in TFL treatments. N2-fixing bacteria were initially increased, then decreased, and then recovered, and it was positively correlated with NH4+-N content. Compared with the control, ammonia-oxidizing bacteria were decreased by 25.51-92.63%, ammonia-oxidizing archaea were decreased by 17.12-85.21% (except day 7), and the NO3--N concentration was also inhibited. In contrast to bacteria, fungal abundance was inhibited without any observable effects on fungal diversity or community structure. These results suggest that TFL impacts soil bacterial community and alters functional microorganisms involved in soil N processing.
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Affiliation(s)
- Pengqiang Du
- College of Chemistry, Central China Normal University, No. 152 Luoyu Road, Wuhan, 430079, China; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Yongquan Zheng
- College of Chemistry, Central China Normal University, No. 152 Luoyu Road, Wuhan, 430079, China; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
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75
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Wang K, Yin X, Mao H, Chu C, Tian Y. Changes in structure and function of fungal community in cow manure composting. BIORESOURCE TECHNOLOGY 2018; 255:123-130. [PMID: 29414157 DOI: 10.1016/j.biortech.2018.01.064] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 01/11/2018] [Accepted: 01/14/2018] [Indexed: 06/08/2023]
Abstract
In this study, dynamic changes in fungal communities, trophic modes and effect factors in 60 days composting of cow manure were analyzed by using high throughput sequencing, FUNGuild and Biolog FF MicroPlate, respectively. Orpinomyces (relative abundance >10.85%) predominated in feedstock, and Mycothermus became the dominating genus (relative abundance >75%) during the active phase. Aerobic composting treatment had a significant effect on fungal trophic modes with pathogenic fungi fading away and wood saprotrophs increasing over composting time. Fungal communities had the higher carbon sources utilization capabilities at the thermophilic phase and mature phase than those in the other periods. Oxidation reduction potential (ORP) significantly increased from -180 to 180 mV during the treatment. Redundancy analysis showed that the succession of fungal community during composting had a significant association with ORP (p < .05). This indicated that aerobic composting treatment not only influenced fungal community structure, but also changed fungal trophic modes and metabolic characteristics.
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Affiliation(s)
- Ke Wang
- School of Environment, Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China.
| | - Xiangbo Yin
- School of Environment, Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Hailong Mao
- School of Environment, Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Chu Chu
- School of Environment, Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Yu Tian
- School of Environment, Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
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76
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Mohapatra S, Padhy S, Das Mohapatra PK, Thatoi HN. Enhanced reducing sugar production by saccharification of lignocellulosic biomass, Pennisetum species through cellulase from a newly isolated Aspergillus fumigatus. BIORESOURCE TECHNOLOGY 2018; 253:262-272. [PMID: 29353755 DOI: 10.1016/j.biortech.2018.01.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
A cellulose degrading fungus Aspergillus fumigatus (CWSF-7) isolated from decomposed lignocellulosic waste containing soil was found to produce high titer of cellulases. The optimum activity of CMCase and FPase were 1.9 U/mL and 0.9 U/mL respectively while the highest protein concentration was found to be 1.2 mg/mL. Saccharification of two Pennisetum grass varieties [dennanath (DG) and hybrid napier grass (HNG)] were optimized using partially purified CMCase and FPase in equal concentration, i.e. a ratios of 1:1 and further with addition of commercial xylanase using response surface methodology (RSM). The production of total reducing sugar (TRS) using isolated cellulase were 396.6 and 355.8 (mg/g), whereas further addition of xylanase had higher TRS titers of 478.7 and 483.3 (mg/g) for DG and HNG respectively as evident from HPLC analysis. Further, characterization of the enzyme saccharified DG and HNG by SEM and ATR-FTIR revealed efficient hydrolysis of cellulose and partially hydrolysis of hemicellulose.
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Affiliation(s)
- Sonali Mohapatra
- Department of Biotechnology, College of Engineering and Technology, Biju Pattnaik University of Technology, Bhubaneswar 751003, India
| | - Sameer Padhy
- Department of Biotechnology, College of Engineering and Technology, Biju Pattnaik University of Technology, Bhubaneswar 751003, India
| | | | - H N Thatoi
- Department of Biotechnology, North Orissa University, Sriram Chandra vihar, Takatpur, Baripada 757003, Odisha, India
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77
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Zhou Y, Selvam A, Wong JWC. Chinese medicinal herbal residues as a bulking agent for food waste composting. BIORESOURCE TECHNOLOGY 2018; 249:182-188. [PMID: 29040853 DOI: 10.1016/j.biortech.2017.09.212] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/29/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to co-compost Chinese medicinal herbal residues (CMHRs) as the bulking agent with food waste (FW) to develop a high value antipathogenic compost. The FW, sawdust (SD) and CMHRs were mixed at three different mixing ratios, 5:5:1, 2:2:1 and 1:1:1 on dry weight basis. Lime at 2.25% was added to the composting mix to buffer the pH during the composting. A control without lime addition was also included. The mixtures were composted in 20-L in-vessel composters for 56 days. A maximum of 67.2% organic decomposition was achieved with 1:1:1 mixing ratio within 8 weeks. The seed germination index was 157.2% in 1:1:1 mixing ratio, while other ratios showed <130.0% and the treatment without lime showed 40.3%. Therefore use of CMHRs as the bulking agent to compost food waste at the dry weight ratio of 1:1:1 (FW: SD: CMHRs) was recommended for FW-CMHRs composting.
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Affiliation(s)
- Ying Zhou
- Sino-Forest Applied Research Centre for Pearl River Delta Environment and Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Ammaiyappan Selvam
- Sino-Forest Applied Research Centre for Pearl River Delta Environment and Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region; Department of Plant Science, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli 627 012, Tamil Nadu, India
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment and Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region.
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