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Article
Open AccessMethane prediction equations including genera of rumen bacteria as predictor variables improve prediction accuracy
Methane (CH4) emissions from ruminants are of a significant environmental concern, necessitating accurate prediction for emission inventories. Existing models rely solely on dietary and host animal-related data, ...
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Article
Open AccessLarge-scale analysis of sheep rumen metagenome profiles captured by reduced representation sequencing reveals individual profiles are influenced by the environment and genetics of the host
Producing animal protein while reducing the animal’s impact on the environment, e.g., through improved feed efficiency and lowered methane emissions, has gained interest in recent years. Genetic selection is o...
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Article
Open AccessCombining host and rumen metagenome profiling for selection in sheep: prediction of methane, feed efficiency, production, and health traits
Rumen microbes break down complex dietary carbohydrates into energy sources for the host and are increasingly shown to be a key aspect of animal performance. Host genotypes can be combined with microbial DNA s...
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Article
Open AccessPatterns and determinants of the global herbivorous mycobiome
Despite their role in host nutrition, the anaerobic gut fungal (AGF) component of the herbivorous gut microbiome remains poorly characterized. Here, to examine global patterns and determinants of AGF diversity...
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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 AccessMap** immunogenic epitopes of an adhesin-like protein from Methanobrevibacter ruminantium M1 and comparison of empirical data with in silico prediction methods
In silico prediction of epitopes is a potentially time-saving alternative to experimental epitope identification but is often subject to misidentification of epitopes and may not be useful for proteins from ar...
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Article
Open AccessLow-cost sample preservation methods for high-throughput processing of rumen microbiomes
The use of rumen microbial community (RMC) profiles to predict methane emissions has driven interest in ruminal DNA preservation and extraction protocols that can be processed cheaply while also maintaining or...
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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
Open AccessEffects of long-acting, broad spectra anthelmintic treatments on the rumen microbial community compositions of grazing sheep
Anthelmintic treatment of adult ewes is widely practiced to remove parasite burdens in the expectation of increased ruminant productivity. However, the broad activity spectra of many anthelmintic compounds rai...
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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 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 AccessErratum: Rumen microbial community composition varies with diet and host, but a core microbiome is found across a wide geographical range
Ruminant livestock are important sources of human food and global greenhouse gas emissions. Feed degradation and methane formation by ruminants rely on metabolic interactions between rumen microbes and affect ...
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Article
Open AccessRumen microbial community composition varies with diet and host, but a core microbiome is found across a wide geographical range
Ruminant livestock are important sources of human food and global greenhouse gas emissions. Feed degradation and methane formation by ruminants rely on metabolic interactions between rumen microbes and affect ...
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Article
Dormant microbes: scouting ahead or plodding along?
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Article
Open AccessPhylum Verrucomicrobia representatives share a compartmentalized cell plan with members of bacterial phylum Planctomycetes
The phylum Verrucomicrobia is a divergent phylum within domain Bacteria including members of the microbial communities of soil and fresh and marine waters; recently extremely acidophilic members from hot springs ...
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Chapter and Conference Paper
Haloviruses and Their Hosts
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Article
Propanol as an end product of threonine fermentation
Clostridium sp. strain 17cr1 was able to ferment l-threonine to propionate and propanol. Electrons arising in the oxidation of 2-oxobutyrate to propionyl-CoA were apparently used in reductive pathway leading to p...
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Article
Fermentation of glycolate by a pure culture of a strictly anaerobic gram-positive bacterium belonging to the family Lachnospiraceae
The component bacteria of a three-membered mixed culture able to ferment glycolate to acetate, propionate and CO2 were isolated in pure culture. All three strains were strict anaerobes that, on the basis of compa...
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Article
Transient Production of Formate During Chemolithotrophic Growth of Anaerobic Microorganisms on Hydrogen
The homoacetogenic bacteria Acetobacterium woodii, A. carbinolicum, Sporomusa ovata, and Eubacterium limosum, the methanogenic archaeon Methanobacterium formicicum, and the sulfate-reducing bacterium Desulfotoma...
