title: The dynamic changes and interactional networks of prokaryotic community between co-digestion and mono-digestions of corn stalk and pig manure.
abstract: Anaerobic co-digestion is considered to be an efficient way to improve the biogas production. The abundance, dynamic and interactional networks of prokaryotic community were investigated between co-digestion and mono-digestions of corn stalk and pig manure in mesophilic batch test. Co-digestion showed higher methane production, and contributed to suitable microenvironment as well as stable prokaryotic community structure. The highest methane production was achieved with the highest relative abundance of Methanosaeta. Prokaryotic community in mono-digestions might inhibited by FA or FVFA. The functional modules in co-digestion and mono-digestion of pig manure clustered together with bigger size and higher degree, and the connections of metabolic functions were better-organized, which means high-efficient utilization of substrate and prevention of the two digestion systems crash. The partial mantel tests showed the functional modules were significantly affected by environmental factors. These results further explained that why co-digestion was more efficient than mono-digestion owing to suitable microenvironment.
authors.affiliation: Nanjing Tech University, Nanjing 211816, China.
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.affiliation: Nanjing Tech University, Nanjing 211816, China.
authors.forename: Xueying
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Nanjing Tech University, Nanjing 211816, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
authors.forename: Yuexiang
authors.initials: Y
authors.lastname: Yuan
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
authors.forename: Yumei
authors.initials: Y
authors.lastname: Dai
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Li
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
authors.forename: Zhidong
authors.initials: Z
authors.lastname: Li
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Environmental and Applied Microbiology, CAS, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China. Electronic address: yanzy@cib.ac.cn.
authors.forename: Zhiying
authors.initials: Z
authors.lastname: Yan
mesh_terms: D000818:Animals; D056804:Biofuels / Q000382:microbiology; D019149:Bioreactors / Q000382:microbiology; D005232:Fatty Acids, Volatile / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008372:Manure / Q000382:microbiology*; D008697:Methane / Q000096:biosynthesis; D009584:Nitrogen / Q000032:analysis; D025341:Principal Component Analysis; D011387:Prokaryotic Cells / Q000378:metabolism*; D012037:Refuse Disposal / Q000379:methods*; D018709:Statistics, Nonparametric; D034421:Sus scrofa; D003313:Zea mays / Q000737:chemistry*
chemical_list: D056804:Biofuels; D005232:Fatty Acids, Volatile; D008372:Manure; D009584:Nitrogen; D008697:Methane
keywords: Co-digestion; Microenvironment; Mono-digestion; Network analysis; Prokaryotic community