Name: Caulobacter flavus Sun et al. 2015

Category: Species

Proposed as: sp. nov.

Etymology: fla’vus. L. masc. adj. flavus, yellow, referring to the colour of the colonies

Pronunciation, gender: FLA-wus, masculine

Type strain: CGMCC 1.15093; JCM 30763; KCTC 42581; RHGG3

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KR086403 Analyse FASTA

Valid publication: Sun LN, Yang ED, Wei JC, Tang XY, Cao YY, Han GM. Caulobacter flavus sp. nov., a stalked bacterium isolated from rhizosphere soil. Int J Syst Evol Microbiol 2015; 65:4374-4380.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 12 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:1600-1602.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.12870 (N = 4).
  • 😷 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 7 times in PubMed until 2025-06-04.
  • 🧍 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: Sun LN, Yang ED, Wei JC, Tang XY, Cao YY, Han GM. Caulobacter flavus sp. nov., a stalked bacterium isolated from rhizosphere soil. Int J Syst Evol Microbiol 2015; 65:4374-4380.

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Record number: 793593