Name: Hyphomonas jannaschiana Weiner et al. 1985

Category: Species

Proposed as: sp. nov.

Etymology: jan.na.schi.a’na. N.L. fem. adj. jannaschiana, pertaining to Jannasch, named for H. Jannasch for his contributions to marine microbiology

Pronunciation (Latin), gender: … jan-na-s͡hi-A-na, feminine

Type strain: ATCC 33883; DSM 5153; VP2

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KF863146 Analyse FASTA

Valid publication: Weiner RM, Devine RA, Powell DM, Dagasan L, Moore RL. Hyphomonas oceanitis sp. nov., Hyphomonas hirschiana sp. nov., and Hyphomonas jannaschiana sp. nov. Int. J. Syst. Bacteriol. 1985; 35:237-243. 🇺🇸

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• 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:
  • 🧬 The phylogenomic assignment score of this taxon is 0.18111 (N = 4).
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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. — 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 8 times in PubMed until 2025-06-04.

Parent taxon: Hyphomonas (ex Pongratz 1957) Moore et al. 1984

Assigned by: Weiner RM, Devine RA, Powell DM, Dagasan L, Moore RL. Hyphomonas oceanitis sp. nov., Hyphomonas hirschiana sp. nov., and Hyphomonas jannaschiana sp. nov. Int. J. Syst. Bacteriol. 1985; 35:237-243. 🇺🇸

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Record number: 776984