Journal
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
Volume 76, Issue 18, Pages 6322-6326Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.00927-10
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Funding
- Federal Ministry of Education and Research [KFZ 03SF 03171]
- C1-Chemistry in Resource and Energy Management
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The present long-term study (about 1,100 days) monitored the diversity of methanogens during the mesophilic, anaerobic digestion of beet silage. Six fermentor samples were analyzed by ribosomal RNA gene restriction analysis, fluorescence in situ hybridization, and fluorescence microscopy. Hydrogenotrophic methanogens dominated within the population in all samples analyzed. Multidimensional scaling revealed that a rapid decrease in hydraulic retention time resulted in increased species richness, which in turn led to slightly higher CH4 yields.
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