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A time-course analysis of four full-scale anaerobic digesters in relation to the dynamics of change of their microbial communities

Benny Pycke (UGent) , C Etchebehere, Pieter Van de Caveye (UGent) , Andrea Negroni (UGent) , Willy Verstraete (UGent) and Nico Boon (UGent)
(2011) WATER SCIENCE AND TECHNOLOGY. 63(4). p.769-775
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Biotechnology for a sustainable economy (Bio-Economy)
Abstract
This study describes the microbial community richness, -dynamics, and -organization of four full-scale anaerobic digesters during a time-course study of 45 days. The microbial community was analyzed using a Bacteria- and Archaea-targeting 16S rRNA gene-based Terminal-Restriction Fragment Length Polymorphism approach. Clustering analysis separated meso- and thermophilic reactors for both archaeal and bacterial communities. Regardless of the operating temperature, each installation possessed a distinct community profile. For both microbial domains, about 8 dominant terminal-restriction fragments could be observed, with a minimum of 4 and a maximum of 14. The bacterial community organization (a coefficient which describes the specific degree of evenness) showed a factor 2 more variation in the mesophilic reactors, compared with the thermophilic ones. The archaeal community structure of the mesophilic UASB reactor was found to be more stable. The community composition was highly dynamic for Bacteria and Archaea, with a rate of change between 20-50% per 15 days. This study illustrated that microbial communities in full-scale anaerobic digesters are unique to the installation and that community properties are dynamic. Converging complex microbial processes such as anaerobic digestion which rely on a multitude of microbial teams apparently can be highly dynamic.
Keywords
anaerobic liquefaction, microbial resource management, solid waste, T-RFLP, 16S RIBOSOMAL-RNA, WASTEWATERS, METHANOGENS, ENVIRONMENTS, GENES, BACTERIAL COMMUNITIES, WASTE-WATER, DIVERSITY, ECOLOGY, TECHNOLOGY, biogas

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Citation

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Chicago
Pycke, Benny, C Etchebehere, Pieter Van de Caveye, Andrea Negroni, Willy Verstraete, and Nico Boon. 2011. “A Time-course Analysis of Four Full-scale Anaerobic Digesters in Relation to the Dynamics of Change of Their Microbial Communities.” Water Science and Technology 63 (4): 769–775.
APA
Pycke, B., Etchebehere, C., Van de Caveye, P., Negroni, A., Verstraete, W., & Boon, N. (2011). A time-course analysis of four full-scale anaerobic digesters in relation to the dynamics of change of their microbial communities. WATER SCIENCE AND TECHNOLOGY, 63(4), 769–775.
Vancouver
1.
Pycke B, Etchebehere C, Van de Caveye P, Negroni A, Verstraete W, Boon N. A time-course analysis of four full-scale anaerobic digesters in relation to the dynamics of change of their microbial communities. WATER SCIENCE AND TECHNOLOGY. 2011;63(4):769–75.
MLA
Pycke, Benny, C Etchebehere, Pieter Van de Caveye, et al. “A Time-course Analysis of Four Full-scale Anaerobic Digesters in Relation to the Dynamics of Change of Their Microbial Communities.” WATER SCIENCE AND TECHNOLOGY 63.4 (2011): 769–775. Print.
@article{1196376,
  abstract     = {This study describes the microbial community richness, -dynamics, and -organization of four full-scale anaerobic digesters during a time-course study of 45 days. The microbial community was analyzed using a Bacteria- and Archaea-targeting 16S rRNA gene-based Terminal-Restriction Fragment Length Polymorphism approach. Clustering analysis separated meso- and thermophilic reactors for both archaeal and bacterial communities. Regardless of the operating temperature, each installation possessed a distinct community profile. For both microbial domains, about 8 dominant terminal-restriction fragments could be observed, with a minimum of 4 and a maximum of 14. The bacterial community organization (a coefficient which describes the specific degree of evenness) showed a factor 2 more variation in the mesophilic reactors, compared with the thermophilic ones. The archaeal community structure of the mesophilic UASB reactor was found to be more stable. The community composition was highly dynamic for Bacteria and Archaea, with a rate of change between 20-50\% per 15 days. This study illustrated that microbial communities in full-scale anaerobic digesters are unique to the installation and that community properties are dynamic. Converging complex microbial processes such as anaerobic digestion which rely on a multitude of microbial teams apparently can be highly dynamic.},
  author       = {Pycke, Benny and Etchebehere, C and Van de Caveye, Pieter and Negroni, Andrea and Verstraete, Willy and Boon, Nico},
  issn         = {0273-1223},
  journal      = {WATER SCIENCE AND TECHNOLOGY},
  keyword      = {anaerobic liquefaction,microbial resource management,solid waste,T-RFLP,16S RIBOSOMAL-RNA,WASTEWATERS,METHANOGENS,ENVIRONMENTS,GENES,BACTERIAL COMMUNITIES,WASTE-WATER,DIVERSITY,ECOLOGY,TECHNOLOGY,biogas},
  language     = {eng},
  number       = {4},
  pages        = {769--775},
  title        = {A time-course analysis of four full-scale anaerobic digesters in relation to the dynamics of change of their microbial communities},
  url          = {http://dx.doi.org/10.2166/wst.2011.307},
  volume       = {63},
  year         = {2011},
}

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