Bamboo charcoal enhances cellulase and urease activities during chicken manure composting:Roles of the bacterial community and metabolic functions

作     者：Yanan Yin Chao Yang Jingrui Tang Jie Gu Haichao Li Manli Duan Xiaochang Wang Rong Chen Yanan Yin;Chao Yang;Jingrui Tang;Jie Gu;Haichao Li;Manli Duan;Xiaochang Wang;Rong Chen

作者机构：Key Laboratory of Northwest Water ResourceEnvironment and EcologyMOESchool of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’an 710055China International S&T Cooperation Center for Urban Alternative Water Resources DevelopmentXi’an University of Architecture and TechnologyXi’an 710055China College of Resources and Environmental SciencesNorthwest A&F UniversityYanglingShaanxi 712100China Department of EnvironmentFaculty of Bioscience EngineeringGhent University9000 GhentBelgium State Key Laboratory of Eco-hydraulics in Northwest Arid Region of ChinaXi’an University of TechnologyXi’an 710048China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2021年第33卷第10期

页      面：84-95页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 09[农学] 090101[农学-作物栽培学与耕作学] 0903[农学-农业资源与环境] 0901[农学-作物学] 

基　　金：supported by the National Key R&D Program of China(No.2019YFB2103003) the Key Research and Development Project of Shaanxi Province(No.2020ZDLNY0608) the Scientific Research Program of Shaanxi Provincial Education Department(No.20JT039) China Postdoctoral Science Foundation(2020M673357) the Youth Innovation Team of Shaanxi Universities in 2020 year(PI:Dr Haihan Zhang) Shaanxi Provincial Program for Innovative Research Team(No.2019TD-025) 

主　　题：Bacterial community Carbon utilization Cellulase Composting Urease 

摘      要：Microbial enzymes are crucial for material biotransformation during the composting *** this study,we investigated the effects of adding bamboo charcoal(BC)(i.e.,at 5%,10%,and 20%corresponding to BC5,BC10,and BC20,respectively)on the enzyme activity levels during chicken manure *** results showed that BC10 could increase the cellulose and urease activities by 56%and 96%,*** bacterial community structure in BC10 differed from those in the other treatments,and Luteivirga,Lactobacillus,Paenalcaligenes,Ulvibacter,Bacillus,Facklamia,Pelagibacterium,Sporosarcina,Cellvibrio,and Corynebacterium had the most important roles in *** with other treatments,BC10 significantly enhanced the average rates of degradation of carbohydrates(Dxylose(40%)andα-D-lactose(44%))and amino acids(L-arginine(16%),L-asparagine(14%),and L-threonine(52%)).We also explored the associations among the bacterial community and their metabolic functions with the changes in the activities of *** analysis demonstrated that BC10 altered the co-occurrence patterns of the bacterial communities,where Ulvibacter and class Bacilli were the keystone bacterial taxa with high capacities for degrading carbon source,and they were related to increases in the activities of cellulase and urease,*** results obtained in this study may help to further enhance the efficiency of composting.