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Title of Journal: Microb Ecol

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Abbravation: Microbial Ecology

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Springer-Verlag

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DOI

10.1016/0022-1902(70)80639-x

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1432-184X

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Methanogen Colonisation Does Not Significantly Alt

Authors: Emma J Gagen Pascale Mosoni Stuart E Denman Rafat Al Jassim Christopher S McSweeney Evelyne Forano
Publish Date: 2012/03/02
Volume: 64, Issue: 3, Pages: 628-640
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Abstract

Reductive acetogenesis is not competitive with methanogenesis in adult ruminants whereas acetogenic bacteria are the dominant hydrogenotrophs in the early rumen microbiota The ecology of hydrogenotrophs in the developing rumen was investigated using young lambs raised in sterile isolators and conventional adult sheep Two lambs were born naturally left with their dams for 17 h and then placed into a sterile isolator and reared aseptically They were inoculated with cellulolytic bacteria and later with Methanobrevibacter sp 877 to investigate the effect of methanogen establishment on the rumen acetogen population since they lacked cultivable representatives of methanogens Putative acetogens were investigated by acetylCoA synthase and formyltetrahydrofolate synthetase gene analysis and methanogens by methyl coenzyme reductase A gene analysis Unexpectedly a low abundant but diverse population of methanogens predominantly Methanobrevibacter spp was identified in isolated lambs preinoculation with Mbb sp 877 which was similar to the community structure in conventional sheep In contrast potential acetogen diversity in isolated lambs and conventional sheep was different Potential acetogens affiliated between the Lachnospiraceae and Clostridiaceae in conventional sheep and with the Blautia genus and the Lachnospiraceae in isolated lambs The establishment of Mbb sp 877 1000fold increase in methanogens did not substantially affect acetogen diversityWe are very grateful to Gérard Vert and Christophe de Martrin Unit of Microbiology INRA ClermontFerrand/Theix for the rearing of lambs and rumen sampling and to Pascale Lepercq Rémy Roux and Gérard Andant for technical assistance This work was partly funded by the French and Australian governments through the French–Australian Science and Technology FAST program Emma Gagen was a recipient of scholarships from The University of Queensland and CSIRO Livestock Industries


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  2. Characterization of Bacterial Communities in Sediments Receiving Various Wastewater Effluents with High-Throughput Sequencing Analysis
  3. Bacterial Community Dynamics during Bioremediation of Diesel Oil-Contaminated Antarctic Soil
  4. Assessing the Contamination Potential of Freshly Extracted Escherichia coli Biofilm Cells by Impedancemetry
  5. Denitrifying Bacterial Community Composition Changes Associated with Stages of Denitrification in Oxygen Minimum Zones
  6. Is There a Size Limit for Cosmopolitan Distribution in Free-Living Microorganisms? A Biogeographical Analysis of Testate Amoebae from Polar Areas
  7. Vegetation Affects the Relative Abundances of Dominant Soil Bacterial Taxa and Soil Respiration Rates in an Upland Grassland Soil
  8. Epilithic Algae Distribution Along a Chemical Gradient in a Naturally Acidic River, Río Agrio (Patagonia, Argentina)
  9. Distribution of Cren- and Euryarchaeota in Scots Pine Mycorrhizospheres and Boreal Forest Humus
  10. Feasibility of Removing Surface Deposits on Stone Using Biological and Chemical Remediation Methods
  11. Molecular Characterization and Geological Microenvironment of a Microbial Community Inhabiting Weathered Receding Shale Cliffs
  12. Previously Undescribed Plasmids Recovered from Activated Sludge Confer Tetracycline Resistance and Phenotypic Changes to Acinetobacter oleivorans DR1
  13. Morphological and Phylogenetic Analysis of Fusarium solani Species Complex in Malaysia
  14. Culturable Airborne Bacteria in Outdoor Environments in Beijing, China
  15. Study of the Degradation Activity and the Strategies to Promote the Bioavailability of Phenanthrene by Sphingomonas paucimobilis Strain 20006FA
  16. Ecological Characterisation of the Colonic Microbiota in Arctic and Sub-Arctic Seals
  17. Isolation and Identification of the Microbiota of Danish Farmhouse and Industrially Produced Surface-Ripened Cheeses
  18. Effects of Experimental Lead Pollution on the Microbial Communities Associated with Sphagnum fallax (Bryophyta)
  19. Habitat Heterogeneity and Associated Microbial Community Structure in a Small-Scale Floodplain Hyporheic Flow Path
  20. Abundance of Class 1 Integron-Integrase and Sulfonamide Resistance Genes in River Water and Sediment Is Affected by Anthropogenic Pressure and Environmental Factors
  21. Patterns of Multi-Antibiotic-Resistant Escherichia Coli from Streams with No History of Antimicrobial Inputs
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  25. Erratum to: Influence of Deglaciation on Microbial Communities in Marine Sediments off the Coast of Svalbard, Arctic Circle
  26. Microbial Characterization during the Early Habitation of the International Space Station
  27. 16S rRNA and As-Related Functional Diversity: Contrasting Fingerprints in Arsenic-Rich Sediments from an Acid Mine Drainage
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  29. Changes in Communities of Fusarium and Arbuscular Mycorrhizal Fungi as Related to Different Asparagus Cultural Factors
  30. Pond Sediment Magnetite Grains Show a Distinctive Microbial Community
  31. Response of Benthic Protozoa and Thraustochytrid Protists to Fish Farm Impact in Seagrass ( Posidonia oceanica ) and Soft-Bottom Sediments
  32. Effects of Species Diversity on Establishment and Coexistence: A Phylloplane Fungal Community Model System
  33. Amazonian Dark Earth and Plant Species from the Amazon Region Contribute to Shape Rhizosphere Bacterial Communities
  34. Eggshell Bacterial Load Is Related to Antimicrobial Properties of Feathers Lining Barn Swallow Nests
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