Name: Caulobacter segnis (Urakami et al. 1990) Abraham et al. 1999

Category: Species

Proposed as: comb. nov.

Basonym: Mycoplana segnis Urakami et al. 1990

Etymology: seg’nis. L. masc./fem. adj. segnis, tslow, inactive, lazy

Gender: masculine

Type strain: ATCC 21756; CIP 106962; DSM 7131; IFO 15250; JCM 7823; LMG 17158; NBRC 15250; TK0059

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB023427 Analyse FASTA

Valid 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.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 3 of the IJSB. Int J Syst Bacteriol 1999; 49:1327-1328.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Mycoplana segnis Urakami et al. 1990	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.19544 (N = 5).
  • 😷 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 15 times in PubMed until 2024-03-27.
  • 🧍 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: Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)

Assigned by: 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.

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Record number: 774533