Species Pseudomonas paraeruginosa

Name: Pseudomonas paraeruginosa Rudra et al. 2022

Category: Species

Proposed as: sp. nov.

Etymology: par.ae.ru.gi.no’sa. Gr. prep. para, beside, alongside, near, like; L. fem. adj. aeruginosa, copper-rust coloured, specific epithet of a Pseudomonas species; N.L. fem. adj. paraeruginosa, next to or near aeruginosa

Pronunciation (Latin), gender: pse͡u-DO-mo-nas par-a͡e-ru-gi-NO-sa, feminine

Type strain: ATCC 9027; LMG 8029; NCTC 13628; R. Hugh 813

Conduct genome-based taxonomy at

16S rRNA gene: ON359917 Analyse FASTA

Valid publication: Rudra B, Duncan L, Shah AJ, Shah HN, Gupta RS. Phylogenomic and comparative genomic studies robustly demarcate two distinct clades of Pseudomonas aeruginosa strains: proposal to transfer the strains from an outlier clade to a novel species Pseudomonas paraeruginosa sp. nov. Int J Syst Evol Microbiol 2022; 72:5542. 🇨🇦

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 72, part 11 of the IJSEM. Int J Syst Evol Microbiol 2023; 73:5762.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (taxonomically suspended)

Correct name: Pseudomonas aeruginosa (Schroeter 1872) Migula 1900 (Approved Lists 1980)

Risk group: 2

Synonyms:

Name	Kind
"Bacterium aeruginosum" Schroeter 1872	heterotypic synonym, not validly published, basonym of name in Approved Lists
Pseudomonas aeruginosa (Schroeter 1872) Migula 1900 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP, lectotype

Notes:
- ⏲ According to Committee (2025), this species is a later heterotypic synonym of "Bacterium aeruginosum" Schroeter 1872. Publication: Committee AH. Mitigating changes in prokaryotic nomenclature: Definitions and Workflow. Zenodo 2025; 2025:15320329.
- ⏲ According to Committee (2025), this species is a later heterotypic synonym of Pseudomonas aeruginosa (Schroeter 1872) Migula 1900 (Approved Lists 1980). Publication: Committee AH. Mitigating changes in prokaryotic nomenclature: Definitions and Workflow. Zenodo 2025; 2025:15320329.
- ❗ Pseudomonas paraeruginosa 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 2026-08-13. The full classification is: risk group = 2. — 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 9 times in PubMed until 2026-06-11.
- 🪓 Organisms assigned to this species have previously been classified as Pseudomonas aeruginosa (Schroeter 1872) Migula 1900 (Approved Lists 1980). Publication: Migula W. System der Bakterien, Vol. 2. Gustav Fischer, Jena, 1900. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
- 😴 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 the species itself. This name is taxonomically suspended (and therefore not recommended for medical use for now) until no later than 2027 in favour of Pseudomonas aeruginosa (Schroeter 1872) Migula 1900 (Approved Lists 1980). Publication: Migula W. System der Bakterien, Vol. 2. Gustav Fischer, Jena, 1900. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
- 🧍 See also Rudra et al. (2023). Publication: Rudra B, Duncan L, Shah AJ, Shah HN, Gupta RS. Corrigendum: Phylogenomic and comparative genomic studies robustly demarcate two distinct clades of Pseudomonas aeruginosa strains: proposal to transfer the strains from an outlier clade to a novel species Pseudomonas paraeruginosa sp. nov. Int J Syst Evol Microbiol 2023; 73:5828. 🇨🇦

Parent taxon: Pseudomonas Migula 1894 (Approved Lists 1980)

Assigned by: Rudra B, Duncan L, Shah AJ, Shah HN, Gupta RS. Phylogenomic and comparative genomic studies robustly demarcate two distinct clades of Pseudomonas aeruginosa strains: proposal to transfer the strains from an outlier clade to a novel species Pseudomonas paraeruginosa sp. nov. Int J Syst Evol Microbiol 2022; 72:5542. 🇨🇦

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Record number: 31714

This LPSN page was printed on 2026-09-14 05:15:21

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Species Pseudomonas paraeruginosa