Name: Nitrosolobus multiformis Watson et al. 1971 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: mul.ti.for’mis. L. masc. adj. multus, many; L. fem. n. forma, shape; L. masc./fem. adj. multiformis, many shapes

Gender: masculine

Type strain: ATCC 25196; C-71; DSM 101674

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB070984 Analyse FASTA

Effective publication: Watson SW, Graham LB, Remsen CC, Valois FW. A lobular, ammonia-oxidizing bacterium, Nitrosolobus multiformis nov.gen.nov.sp. Arch Mikrobiol 1971; 76:183-203.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Nitrosospira multiformis (Watson et al. 1971) Head et al. 1995

Risk group: 1

• Synonyms:

  • Name	Kind
    Nitrosospira multiformis (Watson et al. 1971) Head et al. 1995	homotypic synonym, validly published under the ICNP

• Emendations:
  • Watson 1971 Watson SW. Taxonomic considerations of the family Nitrobacteriaceae Buchanan. Requests for opinions. International Journal of Systematic Bacteriology 1971; 21:254-270.
    Notes:
    • 🧍 As of 2022-11-26 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.

• Notes:
  • 🥇 Nomenclatural type of the genus Nitrosolobus Watson et al. 1971 (Approved Lists 1980). Publication: Watson SW, Graham LB, Remsen CC, Valois FW. A lobular, ammonia-oxidizing bacterium, Nitrosolobus multiformis nov.gen.nov.sp. Arch Mikrobiol 1971; 76:183-203.
  • ❗ Nitrosolobus multiformis 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 Nitrosolobus.
  • 😷 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.
  • 🎓 Name mentioned 9 times in PubMed until 2024-03-27.

Parent taxon: Nitrosolobus Watson et al. 1971 (Approved Lists 1980)

Assigned by: Watson SW, Graham LB, Remsen CC, Valois FW. A lobular, ammonia-oxidizing bacterium, Nitrosolobus multiformis nov.gen.nov.sp. Arch Mikrobiol 1971; 76:183-203.

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Record number: 784481