Name: Caulobacter crescentus Poindexter 1964 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: cre.scen.tus. N.L. masc. adj. crescentus, of the moon in its first quarter, crescent; from L. pres. part. crescens, arising, becoming visible, appearing

Gender: masculine

Type strain: ATCC 15252; CB 2; DSM 4727; Stove CB2; VKM B-1493

Conduct genome-based taxonomy at

16S rRNA gene: AF125194 Analyse FASTA

Effective publication: Poindexter JS. BIOLOGICAL PROPERTIES AND CLASSIFICATION OF THE CAULOBACTER GROUP. Bacteriol Rev 1964; 28:231-295.

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: Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• 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:
  • According to Abraham et al. (1999), this species is a later heterotypic synonym of Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980). Publication: Abraham WR, Strompl C, Meyer H, Lindholst S, Moore ER, Christ R, Vancanneyt M, Tindall BJ, Bennasar A, Smit J, et al. Phylogeny and polyphasic taxonomy of Caulobacter species. Proposal of Maricaulis gen. nov. with Maricaulis maris (Poindexter) comb. nov. as the type species, and emended description of the genera Brevundimonas and Caulobacter. Int J Syst Bacteriol 1999; 49:1053-1073.
  • Caulobacter crescentus is the correct name 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 Caulobacter.
  • According to Abraham et al. 1999, Caulobacter crescentus Poindexter 1964 (Approved Lists 1980) is a later heterotypic synonym of Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980). Moore et al. (1978) [1] reported the DNA-DNA homology between the type strain Caulobacter vibrioides CB51 and the type strain Caulobacter crescentus CB2 to be 97%, but they did not formally propose Caulobacter crescentus to be synonymous with Caulobacter vibrioides. Publication: Moore RL, Schmidt J, Poindexter J, Staley JT. Deoxyribonucleic acid homology among the caulobacters. Int. J. Syst. Bacteriol. 1978; 28:349-353.

Parent taxon: Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)

Assigned by: Poindexter JS. BIOLOGICAL PROPERTIES AND CLASSIFICATION OF THE CAULOBACTER GROUP. Bacteriol Rev 1964; 28:231-295.

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Record number: 774523