Species Rhodospirillum rubrum

Name: Rhodospirillum rubrum (Esmarch 1887) Molisch 1907 (Approved Lists 1980)

Category, proposed as: species, comb. nov.

Basonym: "Spirillum rubrum" Esmarch 1887

Etymology: ru’brum. L. adj. ruber -bra -brum, red; L. neut. adj. rubrum, red

Pronunciation (Latin), gender: r^ho-do-spi-RIL-lum RU-brum, neuter

Type strain: ATCC 11170; CCUG 17859; CIP 70.61; DSM 467; LMG 4362; NCIB 8355; NRRL B-3226; S1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D30778 Analyse FASTA

Effective publication: Molisch H. Die Purpurbakterien nach neuen Untersuchungen I-VII. G. Fischer, Jena, 1907.

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: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Spirillum rubrum" Esmarch 1887	homotypic synonym, not validly published, basonym of name in Approved Lists

• Emendations:
  • Hördt et al. 2020 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. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 🥇 Nomenclatural type of the genus Rhodospirillum Molisch 1907 (Approved Lists 1980). Publication: Molisch H. Die Purpurbakterien nach neuen Untersuchungen I-VII. G. Fischer, Jena, 1907.
  • 😷 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 2026-08-13. The full classification is: risk group = 1. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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 1693 times in PubMed until 2026-06-11.
  • 🧍 The genome of the type strain was sequenced as part of the DOE Joint Genome Institute DOEM 2002 Programme. Publication: Munk AC, Copeland A, Lucas S, Lapidus A, Del Rio TG, Barry K, Detter JC, Hammon N, Israni S, Pitluck S, et al. Complete genome sequence of Rhodospirillum rubrum type strain (S1). Stand Genomic Sci 2011; 4:293-302. 🇩🇪

Parent taxon: Rhodospirillum Molisch 1907 (Approved Lists 1980)

Assigned by: Molisch H. Die Purpurbakterien nach neuen Untersuchungen I-VII. G. Fischer, Jena, 1907.

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Record number: 780519