Name: Azonexus hydrophilus Chou et al. 2008

Category: Species

Proposed as: sp. nov.

Etymology: hy.dro’phi.lus. Gr. neut. n. hydôr, water (or hydor); Gr. masc. adj. philos, loving; N.L. masc. adj. hydrophilus, water-loving, referring to its source of isolation

Pronunciation (Latin), gender: … hy-DRO-p^hi-lus, masculine

Type strain: BCRC 17657; d8-1; DSM 23864; LMG 24005

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF158390 Analyse FASTA

Valid publication: Chou JH, Jiang SR, Cho JC, Song J, Lin MC, Chen WM. Azonexus hydrophilus sp. nov., a nifH gene-harbouring bacterium isolated from freshwater. Int J Syst Evol Microbiol 2008; 58:946-951. 🇹🇼

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 4 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:1513-1514.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.08183 (N = 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 2 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Azonexus Reinhold-Hurek and Hurek 2000

Assigned by: Chou JH, Jiang SR, Cho JC, Song J, Lin MC, Chen WM. Azonexus hydrophilus sp. nov., a nifH gene-harbouring bacterium isolated from freshwater. Int J Syst Evol Microbiol 2008; 58:946-951. 🇹🇼

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Record number: 787279