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

Category: Species

Proposed as: sp. nov.

Etymology: L. v. vibro, to set in tremulous motion, move to and fro, vibrate; N.L. masc. n. vibrio, that which vibrates, and also a bacterial genus name of bacteria possessing a curved rod shape (Vibrio); Gr. adj. suff. -oides, ressembling, similar; from Gr. suff. -eides, resembling, similar; from Gr. neut. n. eidos, that which is seen, form, shape, figure; N.L. adj. vibrioides, resembling a vibrio

Gender: masculine

Type strain: CIP 106452; DSM 9893; Stove CB51; VKM B-1496

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ227754 Analyse FASTA

Original publication: Henrici AT, Johnson D. Studies of Fresh water Bacteria. II. Stalked Bacteria, a new order of Schizomycetes. Journal of Bacteriology 1935; 30:61-92.

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

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Caulobacter crescentus Poindexter 1964 (Approved Lists 1980)	heterotypic synonym, validly published

• 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:
    • As of 2020-04-15 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.

• Notes:
  • Nomenclatural type of the genus Caulobacter Henrici and Johnson 1935 (Approved Lists 1980). Publication: Henrici AT, Johnson D. Studies of Fresh water Bacteria. II. Stalked Bacteria, a new order of Schizomycetes. Journal of Bacteriology 1935; 30:61-92.
  • According to Abraham et al. (1999), this species is an earlier heterotypic synonym of Caulobacter crescentus Poindexter 1964 (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.
  • 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. Caulobacter crescentus could not be discerned clearly from Caulobacter vibrioides by a polyphasic approach [2] and, Abraham et al. (1999) formally propose that Caulobacter crescentus Poindexter 1964 (Approved Lists 1980) is a later heterotypic synonym of Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980) [2]. Publication: Poindexter JS. BIOLOGICAL PROPERTIES AND CLASSIFICATION OF THE CAULOBACTER GROUP. Bacteriol Rev 1964; 28:231-295.
  • The type strain of Caulobacter vibrioides Henrici and Johnson 1935 (Approved Lists 1980), which the "Approved Lists of Bacterial Names" list as being "not extant" is in fact held in the DSMZ (strain DSM 9893) and VKM (strain VKM B-1496). 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: Henrici AT, Johnson D. Studies of Fresh water Bacteria. II. Stalked Bacteria, a new order of Schizomycetes. Journal of Bacteriology 1935; 30:61-92.

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Record number: 774538