Name: Methanococcus deltae Corder et al. 1988

Category: Species

Proposed as: sp. nov.

Etymology: del’tae. N.L. gen. neut. n. deltae, of/from the fourth letter of the Greek alphabet, delta

Pronunciation, gender: DEL-ta͡e, masculine

Type strain: ATCC 35294; DSM 2771; RC; ΔRC

Conduct genome-based taxonomy at

16S rRNA gene: U38485 Analyse FASTA

Effective publication: Corder RE, Hook LA, Larkin JM, Frea JI. Isolation and characterization of two new methane-producing cocci: Methanogenium olentangyi, sp. nov., and Methanococcus deltae, sp. nov. Arch. Microbiol. 1983; 134:28-32.

IJSEM list: Anonymous. Validation list no. 25. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:220-222.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanococcus maripaludis Jones et al. 1984

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanococcus maripaludis Jones et al. 1984	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Keswani et al. (1996), this species is a later heterotypic synonym of Methanococcus maripaludis Jones et al. 1984. Publication: Keswani J, Orkand S, Premachandran U, Mandelco L, Franklin MJ, Whitman WB. Phylogeny and taxonomy of mesophilic Methanococcus spp. and comparison of rRNA, DNA hybridization, and phenotypic methods. Int J Syst Bacteriol 1996; 46:727-735.
  • ❗ Methanococcus deltae 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 Methanococcus.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 9 times in PubMed until 2025-06-04.

Parent taxon: Methanococcus Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Corder RE, Hook LA, Larkin JM, Frea JI. Isolation and characterization of two new methane-producing cocci: Methanogenium olentangyi, sp. nov., and Methanococcus deltae, sp. nov. Arch. Microbiol. 1983; 134:28-32.

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Record number: 777846