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  1. ScienceDirect
    https://www.sciencedirect.com/science/article/pii/S0048969718345364

    Ruminal methane production: Associated microorganisms and the …

    • Methane emission from ruminants not only causes serious environmental problems, but also represents a significant source of energy loss to animals. The increasing demand for sustainable animal produc… See more

    Highlights

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    Methane emissions from ruminants account for 16% of global … See more

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    1. Introduction

    The importance of the livestock sector has attracted significant attention in the last decade as a user of natural resources, a source of livelihoods, and a stimulus of economic gr… See more

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    2. Rumen microbial ecosystem and their associations with methane production

    2.1. Rumen microbes
    Rumen is an anaerobic fermenter that contains many and diverse bacteria, protozoa, fungi and archaea. It is estimated that only a s… See more

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    3. Effect of H2 transfer on ruminal methanogenesis

    H2 and CO2, produced during the process of ruminal fermentation, are the major substrates used by methanogens, and methanogenesis represents the largest H2 sink in the r… See more

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    4. Potential candidates for methane mitigation involving in H2 utilization

    4.1. Homoacetogens
    Homoacetogens are a group of obligate anaerobic bacteria that can convert two molecules of carbon dioxide (CO2) into acetate via t… See more

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    Table of Contents
    Highlights
    1. Introduction
    2. Rumen microbial ecosystem and their associations with methane production
    3. Effect of H2 transfer on ruminal methanogenesis
    4. Potential candidates for methane mitigation involving in H2 utilization
    How is methane produced in rumen?
     
  1. Methane production is considered the main H 2 sink in the rumen, which is synthesized by methanogenic archaea with H 2 and CO 2 as substrates (Kumar et al., 2014). The interspecies H 2 transfer, from the fermentative community of protozoa, fungi and bacteria to methanogens is of great importance for methane production in rumen.
    Author: Wei Lan, Chunlei Yang
    Publish Year: 2019

    Ruminal methane production: Associated microorganisms and the …

    www.sciencedirect.com/science/article/pii/S0048969718345364
    www.sciencedirect.com/science/article/pii/S0048969718345364
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  2. People also ask
    Which pathway produces the most methane in the rumen?
    The hydrogenotrophic pathway is the most important methane-producing pathway present in the rumen, with approximately 82% of methane synthesis in the rumen derived from the reduction of CO 2 with H 2, and the major hydrogenotrophic methanogen in rumen belongs to the genus Methanobrevibacte r (Janssen and Kirs, 2008; Kittelmann et al., 2013).

    Ruminal methane production: Associated microorganisms and the pot…

    sciencedirect.com
    Do different hydrogen production and consumption pathways influence methane production in ruminants?
    Diverse hydrogen production and consumption pathways influence methane production in ruminants. ISME J. 13, 2617–2632. doi: 10.1038/s41396-019-0464-2 Greening, R. C., and Leedle, J. A. Z. (1989). Enrichment and isolation of Acetitomaculum ruminis, gen. nov., sp. nov.: acetogenic bacteria from the bovine rumen. Arch.

    Evolving understanding of rumen methanogen ecophysiology

    frontiersin.org
    How is methane produced in rumen?
    Methane production is considered the main H 2 sink in the rumen, which is synthesized by methanogenic archaea with H 2 and CO 2 as substrates (Kumar et al., 2014). The interspecies H 2 transfer, from the fermentative community of protozoa, fungi and bacteria to methanogens is of great importance for methane production in rumen.

    Ruminal methane production: Associated microorganisms and the pot…

    sciencedirect.com
    How to reduce methane emissions from ruminants?
    Decrease methane emissions from ruminants is urgently needed. Hydrogen is the primary substrate for methane production in rumen. Ruminal microorganisms associated with hydrogen metabolism largely affect ruminal methane productions. Hydrogen-utilizing bacteria are good ruminal modifiers for methane mitigation.

    Ruminal methane production: Associated microorganisms and the pot…

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  3. Nature
    https://www.nature.com/articles/s41396-019-0464-2

    Diverse hydrogen production and consumption pathways …

     
  4. Frontiers
    https://www.frontiersin.org/journals/mi…

    Evolving understanding of rumen methanogen …

    WEBProduction of methane by methanogenic archaea, or methanogens, in the rumen of ruminants is a thermodynamic necessity for microbial conversion of feed to volatile fatty acids, which are essential nutrients for the …