Name: Magnetospirillum magnetotacticum (Maratea and Blakemore 1981) Schleifer et al. 1992

Category: Species

Proposed as: comb. nov.

Basonym: Aquaspirillum magnetotacticum Maratea and Blakemore 1981

Etymology: ma.gne.to.tac’ti.cum. Gr. masc. n. Magnês (gen. Magnêtos), pertaining to a magnet; N.L. adj. tacticus -a -um, showing orientation or movement directed by a force or agent; from L. v. tango, to move; N.L. neut. adj. magnetotacticum, capable of orientation with respect to a magnet

Pronunciation, gender: ma-n͡gne-to-TAK-ti-kum, neuter

Type strain: ATCC 31632; DSM 3856; IFO 15272; JCM 21281; LMG 10894; MS-1; NBRC 15272

Conduct genome-based taxonomy at

16S rRNA gene: Y10110 Analyse FASTA

Effective publication: Schleifer KH, Schüler D, Spring S, Weizenegger M, Amann R, Ludwig W, Köhler M. The genus Magnetospirillum gen. nov. description of Magnetospirillum gryphiswaldense sp. nov. and transfer of Aquaspirillum magnetotacticum to Magnetospirillum magnetotacticum comb. nov. Syst. Appl. Microbiol. 1991; 14:379-385.

IJSEM list: Anonymous. Validation list no. 40. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1992; 42:191-192.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Aquaspirillum magnetotacticum Maratea and Blakemore 1981	homotypic synonym, validly published under the ICNP
    Paramagnetospirillum magnetotacticum (Maratea and Blakemore 1981) Koziaeva et al. 2023	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.08703 (N = 16).
  • 😷 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 44 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468.

Parent taxon: Magnetospirillum Schleifer et al. 1992

Assigned by: Schleifer KH, Schüler D, Spring S, Weizenegger M, Amann R, Ludwig W, Köhler M. The genus Magnetospirillum gen. nov. description of Magnetospirillum gryphiswaldense sp. nov. and transfer of Aquaspirillum magnetotacticum to Magnetospirillum magnetotacticum comb. nov. Syst. Appl. Microbiol. 1991; 14:379-385.

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Record number: 777644