Genome sequencing of rumen bacteria and archaea and its application to methane mitigation strategies.
Open accessAbstract
Ruminant-derived methane (CH4), a potent greenhouse gas, is a consequence of microbial fermentation in the digestive tract of livestock. Development of mitigation strategies to reduce CH4 emissions from farmed animals is currently the subject of both scientific and environmental interest. Methanogens are the sole producers of ruminant CH4, and therefore CH4 abatement strategies can either target the methanogens themselves or target the other members of the rumen microbial community that produce substrates necessary for methanogenesis. Understanding the relationship that methanogens have with other rumen microbes is crucial when considering CH4 mitigation strategies for ruminant livestock. Genome sequencing of rumen microbes is an important tool to improve our knowledge of the processes that underpin those relationships. Currently, several rumen bacterial and archaeal genome projects are either complete or underway. Genome sequencing is providing information directly applicable to CH4 mitigation strategies based on vaccine and small molecule inhibitor approaches. In addition, genome sequencing is contributing information relevant to other CH4 mitigation strategies. These include the selection and breeding of low CH4-emitting animals through the interpretation of large-scale DNA and RNA sequencing studies and the modification of other microbial groups within the rumen, thereby changing the dynamics of microbial fermentation.
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Among the bacterial genera whose relative abundance was strongly and positively correlated with CH4 yield, Prevotella and related bacteria, Butyrivibrio, and Succiniclasticum are unique and/or predominant hydrogen-producing bacteria in the rumen.
“Among the bacterial genera whose relative abundance was strongly and positively correlated with CH4 yield, Prevotella and related bacteria, Butyrivibrio, and Succiniclasticum are unique and/or predominant hydrogen-producing bacteria in the rumen (Leahy et al., 2013).”
From Comparative Analysis of the Microbiota Between Sheep Rumen and Rabbit Cecum Provides New Insight Into Their Differential Methane Production (2018) · cites this paper as Leahy et al., 2013
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Min, B. R., Solaiman, S., Waldrip, H. M., Parker, D., Todd, R. W., & Brauer, D. (2020) · Animal nutrition · doi:10.1016/j.aninu.2020.05.002 · Cited by 159 · see citing works
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Self-citation
- Authors
- Leahy, S. C., Kelly, W. J., Ronimus, R. S., Wedlock, N., Altermann, E., & Attwood, G. T.
- Affiliations
- AgResearch (NZ)
- Corresponding author
- Leahy, S.C.
- Venue
- Animal
- Publisher
- Elsevier BV
- Published
- 2013
- Volume
- 7
- Pages
- 235-243
- ISSN
- 1751-7311 (ISSN-L)
- OpenAlex
- W1982616357
- Cited by
- 110
- References
- 2
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 4 · 2023: 7 · 2022: 11 · 2021: 4 · 2020: 19 · 2019: 11 · 2018: 7 · 2017: 5 · 2016: 7 · 2015: 12 · 2014: 11 · 2013: 3
- FWCI
- 23.38
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- animal (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
- Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Keywords
- ruminant methane, methane mitigation, rumen microbiome, methanogenic archaea, rumen bacteria, rumen archaea, genome sequencing, methanogenesis, small molecule inhibitors, livestock greenhouse gas emissions, microbial fermentation
- MeSH terms
- Air Pollutants, Animals, Archaea, Bacteria, Breeding, Fermentation, Methane, Rumen, Genome, Bacterial, Sequence Analysis, DNA, Genome, Archaeal, Environmental Restoration and Remediation, Livestock
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