Name: Methanoplanus petrolearius Ollivier et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: petr.o.le.a’ri.us. Gr. fem. n. petra, rock; L. masc. adj. olearius, related to oil; N.L. masc. adj. petrolearius, related to mineral oil

Pronunciation, gender: petr-o-le-A-ri-us, masculine

Type strain: DSM 11571; OCM 486; SEBR 4847

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U76631 Analyse FASTA

Effective publication: Ollivier B, Cayol JL, Patel BK, Magot M, Fardeau ML, Garcia JL. Methanoplanus petrolearius sp. nov., a novel methanogenic bacterium from an oil-producing well. FEMS Microbiol Lett 1997; 147:51-56.

IJSEM list: Anonymous. Validation list no. 67. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:1083-1084.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanolacinia petrolearia (Ollivier et al. 1998) Göker et al. 2015

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanolacinia petrolearia (Ollivier et al. 1998) Göker et al. 2015	homotypic synonym, validly published under the ICNP

• Emendations:
  • Göker et al. 2014 Goker M, Lu M, Fiebig A, Nolan M, Lapidus A, Tice H, Del Rio TG, Cheng JF, Han C, Tapia R, et al. Genome sequence of the mud-dwelling archaeon Methanoplanus limicola type strain (DSM 2279^T), reclassification of Methanoplanus petrolearius as Methanolacinia petrolearia and emended descriptions of the genera Methanoplanus and Methanolacinia. Stand Genomic Sci 2014; 9:1076-1088. Oren A, Garrity GM. List of changes in taxonomic opinion no. 21. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2015; 65:7-10.

• Notes:
  • ❗ Methanoplanus petrolearius is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Methanoplanus.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 5 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Brambilla E, Djao OD, Daligault H, Lapidus A, Lucas S, Hammon N, Nolan M, Tice H, Cheng JF, Han C, et al. Complete genome sequence of Methanoplanus petrolearius type strain (SEBR 4847). Stand Genomic Sci 2010; 3:203-211.

Parent taxon: Methanoplanus Wildgruber et al. 1984

Assigned by: Ollivier B, Cayol JL, Patel BK, Magot M, Fardeau ML, Garcia JL. Methanoplanus petrolearius sp. nov., a novel methanogenic bacterium from an oil-producing well. FEMS Microbiol Lett 1997; 147:51-56.

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Record number: 777918