Species Pseudomonas caeni

Name: Pseudomonas caeni Xiao et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: cae’ni. L. gen. neut. n. caeni, of sludge

Pronunciation, gender: KA͡E-ni, feminine

Type strain: CCTCC AB 208156; CECT 7778; DSM 24390; KCTC 22292; strain HY-14

Conduct genome-based taxonomy at

16S rRNA gene: EU620679 Analyse FASTA

Valid publication: Xiao YP, Hui W, Wang Q, Roh SW, Shi XQ, Shi JH, Quan ZX. Pseudomonas caeni sp. nov., a denitrifying bacterium isolated from the sludge of an anaerobic ammonium-oxidizing bioreactor. Int J Syst Evol Microbiol 2009; 59:2594-2598. 🇨🇳

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 10 of the IJSEM. Int J Syst Evol Microbiol 2010; 60:3-4.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Denitrificimonas caeni (Xiao et al. 2009) Saati-Santamaría et al. 2021

Risk group: 1

Synonyms:

Name	Kind
Thiopseudomonas caeni (Xiao et al. 2009) Rudra and Gupta 2021	homotypic synonym, validly published under the ICNP
Denitrificimonas caeni (Xiao et al. 2009) Saati-Santamaría et al. 2021	homotypic synonym, validly published under the ICNP

Notes:
- 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. The expression "monophyletic clade" is a pleonasm. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
- ❗ Pseudomonas caeni is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Pseudomonas.
- 😷 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.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
- 🧍 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: Pseudomonas Migula 1894 (Approved Lists 1980)

Assigned by: Xiao YP, Hui W, Wang Q, Roh SW, Shi XQ, Shi JH, Quan ZX. Pseudomonas caeni sp. nov., a denitrifying bacterium isolated from the sludge of an anaerobic ammonium-oxidizing bioreactor. Int J Syst Evol Microbiol 2009; 59:2594-2598. 🇨🇳

Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/pseudomonas-caeniLink copied to clipboard

Record number: 788149

This LPSN page was printed on 2026-01-15 17:07:48

Subscribe to our newsletter

Species Pseudomonas caeni