Name: Ectopseudomonas pseudoalcaligenes (Stanier 1966) Rudra and Gupta 2024

Category: Species

Proposed as: comb. nov.

Basonym: Pseudomonas pseudoalcaligenes Stanier 1966 (Approved Lists 1980)

Etymology: pseu.do.al.ca.li’ge.nes. Gr. neut. adj. pseudes, false; N.L. neut. n. alcali, alkali (indeclinable); from Arabic article al, the; from Arabic masc. n. qaly, ashes of saltwort; Gr. suff. -genes, producing, from Gr. ind. v. gennaô, to produce; N.L. pres. part. alcaligenes, alkali-producing; N.L. fem. part. adj. pseudoalcaligenes, false alkali producing [probably better: pseudalcaligenes]

Pronunciation, gender: pse͡u-do-al-ka-LI-ge-nes, feminine

Type strain: ATCC 17440; CCUG 51525; CECT 318; CFBP 2435; CIP 66.14; DSM 50188; IFO 14167; JCM 5968; LMG 1225; NBRC 14167; NCAIM B.02048; NCCB 76045; NCIB 9946; NCIMB 9946; NCTC 10860; VTT E-012029

Conduct genome-based taxonomy at

16S rRNA gene: AB021379 Analyse FASTA

Effective publication: Rudra B, Gupta RS. Phylogenomics studies and molecular markers reliably demarcate genus Pseudomonas sensu stricto and twelve other Pseudomonadaceae species clades representing novel and emended genera. Front Microbiol 2023; 14:1273665.

IJSEM list: Oren A, Göker M. Validation list no. 219. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6452.

Nomenclatural status: validly published under the ICNP

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

Correct name: Pseudomonas oleovorans Lee and Chandler 1941 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    Pseudomonas oleovorans Lee and Chandler 1941 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Ectopseudomonas oleovorans (Lee and Chandler 1941) Rudra and Gupta 2024	heterotypic synonym, validly published under the ICNP
    Pseudomonas pseudoalcaligenes Stanier 1966 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Saha et al. (2010), this species is a later heterotypic synonym of Pseudomonas oleovorans Lee and Chandler 1941 (Approved Lists 1980). Publication: Saha R, Sproer C, Beck B, Bagley S. Pseudomonas oleovorans subsp. lubricantis subsp. nov., and reclassification of Pseudomonas pseudoalcaligenes ATCC 17440T as later synonym of Pseudomonas oleovorans ATCC 8062 T. Curr Microbiol 2010; 60:294-300.
  • ⏲ According to Saha et al. (2010), this species is a later heterotypic synonym of Ectopseudomonas oleovorans (Lee and Chandler 1941) Rudra and Gupta 2024. Publication: Saha R, Sproer C, Beck B, Bagley S. Pseudomonas oleovorans subsp. lubricantis subsp. nov., and reclassification of Pseudomonas pseudoalcaligenes ATCC 17440T as later synonym of Pseudomonas oleovorans ATCC 8062 T. Curr Microbiol 2010; 60:294-300.
  • ❗ Ectopseudomonas pseudoalcaligenes 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 Ectopseudomonas.
  • 🎓 Name mentioned 0 times in PubMed until 2025-10-14.
  • 🙅 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 pathogenicity of the species itself.

Parent taxon: Ectopseudomonas Rudra and Gupta 2024

Assigned by: Rudra B, Gupta RS. Phylogenomics studies and molecular markers reliably demarcate genus Pseudomonas sensu stricto and twelve other Pseudomonadaceae species clades representing novel and emended genera. Front Microbiol 2023; 14:1273665.

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Record number: 45273