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Cited by 601Anaerobic Digestion and Biogas ProductionGut microbiota and healthMicrobial Fuel Cells and Bioremediation

The DOI matches its Crossref record; 31 of the 32 references it cites were found in a registry or an index.

Methanomassiliicoccus luminyensis gen. nov., sp. nov., a methanogenic archaeon isolated from human faeces

Dridi, Bédis, Fardeau, Marie-Laure, Ollivier, Bernard, Raoult, Didier, Drancourt, Michel·2012·International Journal of Systematic and Evolutionary Microbiology
DOI 10.1099/ijs.0.033712-0
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Abstract

During attempts to obtain novel, human-associated species of the domain Archaea , a coccoid micro-organism, designated strain B10 T , was isolated in pure culture from a sample of human faeces collected in Marseille, France. On the basis of its phenotypic characteristics and 16S rRNA and mcr A gene sequences, the novel strain was classified as a methanogenic archaeon. Cells of the strain were non-motile, Gram-staining-positive cocci that were approximately 850 nm in diameter and showed autofluorescence at 420 nm. Cells were lysed by 0.1 % (w/v) SDS. With hydrogen as the electron donor, strain B10 T produced methane by reducing methanol. The novel strain was unable to produce methane when hydrogen or methanol was the sole energy source. In an atmosphere containing CO 2 , strain B10 T could not produce methane from formate, acetate, trimethylamine, 2-butanol, 2-propanol, cyclopentanol, 2-pentanol, ethanol, 1-propanol or 2,3-butanediol. Strain B10 T grew optimally with 0.5–1.0 % (w/v) NaCl, at pH 7.6 and at 37 °C. It required tungstate-selenite for growth. The complete genome of the novel strain was sequenced; the size of the genome was estimated to be 2.05 Mb and the genomic DNA G+C content was 59.93 mol%. In phylogenetic analyses based on 16S rRNA gene sequences, the highest sequence similarities (98.0–98.7 %) were seen between strain B10 T and several uncultured, methanogenic Archaea that had been collected from the digestive tracts of a cockroach, a chicken and mammals. In the same analysis, the non-methanogenic ‘ Candidatus Aciduliprofundum boonei’ DSM 19572 was identified as the cultured micro-organism that was most closely related to strain B10 T (83.0 % 16S rRNA gene sequence similarity). Each of the three treeing algorithms used in the analysis of 16S rRNA gene sequences indicated that strain B10 T belongs to a novel order that is distinct from the Thermoplasmatales . The novel strain also appeared to be distinct from Methanosphaera stadtmanae DSM 3091 T (72.9 % 16S rRNA gene sequence similarity), another methanogenic archaeon that was isolated from human faeces and can use methanol in the presence of hydrogen. Based on the genetic and phenotypic evidence, strain B10 T represents a novel species of a new genus for which the name Methanomassiliicoccus luminyensis gen. nov., sp. nov. is proposed. The type strain of the type species is B10 T ( = DSM 24529 T = CSUR P135 T ).

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Metadata

Authors
Dridi, B., Fardeau, M.-L., Ollivier, B., Raoult, D., & Drancourt, M.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Aix-Marseille Université (FR)
ORCID
Venue
International Journal of Systematic and Evolutionary Microbiology
Publisher
Microbiology Society
Published
2012-08-01
Volume
62
Issue
Pt_8
Pages
1902-1907
ISSN
  • 1466-5026 (ISSN-L)
  • 1466-5034
DOI
10.1099/ijs.0.033712-0
OpenAlex
W2076631370
Cited by
596
References
32
Citations by year
2026: 14 · 2025: 19 · 2024: 36 · 2023: 38 · 2022: 40 · 2021: 49 · 2020: 61 · 2019: 63 · 2018: 66 · 2017: 42 · 2016: 45 · 2015: 53 · 2014: 28 · 2013: 31 · 2012: 11
FWCI
76.70
Type
journal article
Language
en
Open access
closed
Locations
  • INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
Aix-Marseille Université
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
MeSH terms
Aged, 80 and over, Archaea, Base Composition, Feces, Humans, Male, Methane, Molecular Sequence Data, Phylogeny, RNA, Ribosomal, 16S, Sequence Analysis, DNA, DNA, Archaeal, Genome, Archaeal

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