2018
DOI: 10.1111/mec.14895
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Abstract: Methanogenic communities play a crucial role in carbon cycling and biotechnology (anaerobic digestion), but our understanding of how their diversity, or composition in general, determines the rate of methane production is very limited. Studies to date have been correlational because of the difficulty in cultivating their constituent species in pure culture. Here, we investigate the causal link between methanogenesis and diversity in laboratory anaerobic digesters by experimentally manipulating the diversity of… Show more

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Cited by 28 publications
(21 citation statements)
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References 67 publications
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“…Actinobacteria play a vital role in the catabolism of plant-derived organic matter, important for the initial stages of decomposition (Goodfellow and Williams, 1983;Bentley et al, 2002;Berlemont and Martiny, 2013). The phylum Firmicutes includes many well-characterized heterotrophs responsible for producing partially fermented organic compounds suitable for methanogens, and have been noted to positively covary with methanogens when enriched in batch culture (Sierocinski et al, 2018). In fact, primary and secondary fermenters in Actinobacteria and Firmicutes have been shown sustaining methanogenic metabolism in northern peatland soils (Drake et al, 2009;Wust et al, 2009).…”
Section: Methanogen and Methanotroph Family Assemblages Across The Grmentioning
confidence: 99%
“…Actinobacteria play a vital role in the catabolism of plant-derived organic matter, important for the initial stages of decomposition (Goodfellow and Williams, 1983;Bentley et al, 2002;Berlemont and Martiny, 2013). The phylum Firmicutes includes many well-characterized heterotrophs responsible for producing partially fermented organic compounds suitable for methanogens, and have been noted to positively covary with methanogens when enriched in batch culture (Sierocinski et al, 2018). In fact, primary and secondary fermenters in Actinobacteria and Firmicutes have been shown sustaining methanogenic metabolism in northern peatland soils (Drake et al, 2009;Wust et al, 2009).…”
Section: Methanogen and Methanotroph Family Assemblages Across The Grmentioning
confidence: 99%
“…This suggests that the soil environment of pastures could be favorable for methanogenesis, perhaps due to an additional supply of labile carbon from grass root exudates and/or decreased O2 concentrations throughout the soil column due to compaction (Fernandes et al 2002). Methanogenesis has been positively associated with methanogen abundance and diversity in Congo Basin wetland soils ) as well as anaerobic digesters (Sierocinski et al 2018), suggesting that abundance-and diversity-controls may be common in the CH4 cycle.…”
Section: This Included Methanogens In the Methanobacteria Methanocelmentioning
confidence: 99%
“…[9]) but may not reflect well the complex environments that the lineages were originally sampled from. Therefore, when working with natural assemblages, serial dilution of natural samples can provide a useful tool to reduce biodiversity to such an effect that rare species are lost, and common species remain [24,25].…”
Section: Introductionmentioning
confidence: 99%