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Methanospirillum, a new genus of methanogenic Bacteria, and characterization of Methanospirillum hungatii sp. nov
Abstract
A new genus of methanogenic bacteria is described. The colonies produced by these bacteria are yellow, circular, and convex with lobate margins; an optical pattern of regular, light and dark striations throughout the colonies is a most unique and distinguishing characteristic. These striations are two cell lengths apart. Cells are gram negative and occur in filaments up to 100 in length. Tufts of polar flagella and a striated cell surface are revealed in electron micrographs; cell ends are blunt, not rounded. The deoxyribonucleic acid base composition of the type species is 45 mol% guanine plus cytosine. Formate or hydrogen and carbon dioxide serves as a substrate for methane formation and growth; acetate, pyruvate, methanol, ethanol, and benzoate do not. The name Methanospirillum is proposed for this new genus of spiral-shaped methanogenic bacteria. The type species, Methanospirillum hungatii sp. nov., is named in honor of R. E. Hungate. The type strain of M. hungatii is JF1 (ATCC 27890).
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Although organisms have not yet been cultivated from hydrothermal vents that exhibit growth on formate, acetogens and methanogens are known that use formate as their sole carbon and electron source, and some methanogens use formate as their sole carbon source.
“Although organisms have not yet been cultivated from hydrothermal vents that exhibit growth on formate, acetogens (Moon et al., 2021) and methanogens (Ferry et al., 1974) are known that use formate as their sole carbon and electron source, and some methanogens use formate as their sole carbon source (Costa et al., 2010; Lie et al., 2012).”
From Serpentinization as the source of energy, electrons, organics, catalysts, nutrients and pH gradients for the origin of LUCA and life (2023) · cites this paper as Ferry et al., 1974
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Schwander, L., Brabender, M., Mrnjavac, N., Wimmer, J. L. E., Preiner, M., & Martin, W. F. (2023) · Frontiers in Microbiology · doi:10.3389/fmicb.2023.1257597 · Cited by 65
Metadata
- Authors
- Ferry, J. G., Smith, P. H., & Wolfe, R. S.
- Affiliations
- University of Illinois Urbana-Champaign (US)
- Venue
- International Journal of Systematic Bacteriology
- Publisher
- Microbiology Society
- Published
- 1974-10-01
- Volume
- 24
- Issue
- 4
- Pages
- 465-469
- ISSN
- 0020-7713 (ISSN-L)
- 1465-2102
- OpenAlex
- W2057916894
- Cited by
- 185
- References
- 0
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 8 · 2020: 6 · 2019: 8 · 2018: 7 · 2017: 3 · 2016: 5 · 2015: 6 · 2014: 12 · 2013: 12 · 2012: 2
- FWCI
- 22.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Systematic Bacteriology (publishedVersion)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
- Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
- Keywords
- Methanospirillum, novel bacterial genus, methanogenic bacteria, spiral-shaped bacteria, bacterial colony morphology, polar flagella, DNA base composition, bacterial taxonomy
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