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Article
Open AccessUnraveling the phylogenomic diversity of Methanomassiliicoccales and implications for mitigating ruminant methane emissions
Methanomassiliicoccales are a recently identified order of methanogens that are diverse across global environments particularly the gastrointestinal tracts of animals; however, their metabolic capacities are d...
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Article
Open AccessGenomic insights into the physiology of Quinella, an iconic uncultured rumen bacterium
Quinella is a genus of iconic rumen bacteria first reported in 1913. There are no cultures of these bacteria, and information on their physiology is scarce and contradictory. Increased abundance of Quinella was p...
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Article
Open AccessHydrogen and formate production and utilisation in the rumen and the human colon
Molecular hydrogen (H2) and formate (HCOO−) are metabolic end products of many primary fermenters in the mammalian gut. Both play a vital role in fermentation where they are electron sinks for individual microbes...
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Article
Farm-scale carbon and nitrogen fluxes in pastoral dairy production systems using different nitrogen fertilizer regimes
The nitrogen (N) fertilizer application rate (kg ha−1 year−1) in pastoral dairy systems affects the flow of N through the soil, plant and animal pools of the system. With better understanding of the magnitude of ...
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Article
Open AccessOccurrence and expression of genes encoding methyl-compound production in rumen bacteria
Digestive processes in the rumen lead to the release of methyl-compounds, mainly methanol and methylamines, which are used by methyltrophic methanogens to form methane, an important agricultural greenhouse gas...
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Article
Open AccessCultivation and sequencing of rumen microbiome members from the Hungate1000 Collection
Rumen microbiome biology gets a boost with the release of 410 high-quality reference genomes from the Hungate1000 project.
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Article
Open AccessThe complete genome sequence of the rumen bacterium Butyrivibrio hungatei MB2003
Butyrivibrio hungatei MB2003 was isolated from the plant-adherent fraction of rumen contents from a pasture-grazed New Zealand dairy cow, and was selected for genome sequencing in order t...
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Article
Open AccessGene and transcript abundances of bacterial type III secretion systems from the rumen microbiome are correlated with methane yield in sheep
Ruminants are important contributors to global methane emissions via microbial fermentation in their reticulo-rumens. This study is part of a larger program, characterising the rumen microbiomes of sheep which...
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Article
Open AccessRumen metagenome and metatranscriptome analyses of low methane yield sheep reveals a Sharpea-enriched microbiome characterised by lactic acid formation and utilisation
Enteric fermentation by farmed ruminant animals is a major source of methane and constitutes the second largest anthropogenic contributor to global warming. Reducing methane emissions from ruminants is needed ...
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Article
Open AccessThe complete genome sequence of the methanogenic archaeon ISO4-H5 provides insights into the methylotrophic lifestyle of a ruminal representative of the Methanomassiliicoccales
Methane emissions from agriculture represent around 9 % of global anthropogenic greenhouse emissions. The single largest source of this methane is animal enteric fermentation, predominantly from ruminant lives...
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Article
Open AccessThe complete genome sequence of the rumen methanogen Methanobrevibacter millerae SM9
Methanobrevibacter millerae SM9 was isolated from the rumen of a sheep maintained on a fresh forage diet, and its genome has been sequenced to provide information on the phylogenetic dive...
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Article
Open AccessThe complete genome sequence of Eubacterium limosum SA11, a metabolically versatile rumen acetogen
Acetogens are a specialized group of anaerobic bacteria able to produce acetate from CO2 and H2 via the Wood–Ljungdahl pathway. In some gut environments acetogens can compete with methanogens for H2, and as a res...
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Article
Open AccessThe complete genome sequence of the rumen methanogen Methanosarcina barkeri CM1
Methanosarcina species are the most metabolically versatile of the methanogenic Archaea and can obtain energy for growth by producing methane via the hydrogenotrophic, acetoclastic or met...
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Article
Open AccessThe complete genome sequence of the rumen methanogen Methanobacterium formicicum BRM9
Methanobacterium formicicum BRM9 was isolated from the rumen of a New Zealand Friesan cow grazing a ryegrass/clover pasture, and its genome has been sequenced to provide information on the phylogenetic diversity...
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Article
Open AccessMetasecretome-selective phage display approach for mining the functional potential of a rumen microbial community
In silico, secretome proteins can be predicted from completely sequenced genomes using various available algorithms that identify membrane-targeting sequences. For metasecretome (collection of surface, secreted a...
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Metagenomic analysis of the microbiomes in ruminants and other herbivores
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Article
Genetic diversity in ruminal isolates ofSelenomonas ruminantium
Diversity in the ruminal bacterial speciesSelenomonas ruminantium has been investigated by DNA fingerprinting, DNA-DNA hybridization, plasmid analysis, bacteriophage sensitivity, and monoclonal antibody-based imm...
