Name: Achromobacter denitrificans (Rüger and Tan 1983 ex Leifson and Hugh 1954) Coenye et al. 2003

Category: Species

Proposed as: comb. nov.

Basonym: Alcaligenes denitrificans (ex Leifson and Hugh 1954) Rüger and Tan 1983

Etymology: de.ni.tri’fi.cans. N.L. part. adj. denitrificans, denitrifying

Gender: masculine

Type strain: ATCC 15173; CCUG 407; CIP 77.15; DSM 30026; IFO 15125; JCM 5490; LMG 1231; NCTC 8582

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ278451 Analyse FASTA

Valid publication: Coenye T, Vancanneyt M, Cnockaert MC, Falsen E, Swings J, Vandamme P. Kerstersia gyiorum gen. nov., sp. nov., a novel Alcaligenes faecalis-like organism isolated from human clinical samples, and reclassification of Alcaligenes denitrificans Ruger and Tan 1983 as Achromobacter denitrificans comb. nov. Int J Syst Evol Microbiol 2003; 53:1825-1831.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 6 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:309-311.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Achromobacter xylosoxidans subsp. denitrificans (Rüger and Tan 1983 ex Leifson and Hugh 1954) Yabuuchi et al. 1998	homotypic synonym, validly published under the ICNP, distinct rank
    Alcaligenes xylosoxidans subsp. denitrificans (Rüger and Tan 1983 ex Leifson and Hugh 1954) Kiredjian et al. 1986	homotypic synonym, validly published under the ICNP, distinct rank
    Alcaligenes denitrificans (ex Leifson and Hugh 1954) Rüger and Tan 1983	homotypic synonym, validly published under the ICNP

• Notes:
  • According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
  • According to Rules 27(3) and 30 [1], this new combination is not validly published because the effective publication makes no reference to the deposit of the type strain in any publicly accessible service collection, but deposits in at least two recognized culture collections in different countries are documented. Publication: De Vos P, Trüper HG. Judicial Commission of the International Committee on Systematic Bacteriology. IXth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 14, 15 and 18 August 1999, Sydney, Australia. Int. J. Syst. Evol. Microbiol. 2000; 50:2239-2244.
  • In a Request for an Opinion, Euzéby and Tindall provide a solution whereby this name may be considered to be validly published [2]. Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301.

Parent taxon: Achromobacter Yabuuchi and Yano 1981

Assigned by: Coenye T, Vancanneyt M, Cnockaert MC, Falsen E, Swings J, Vandamme P. Kerstersia gyiorum gen. nov., sp. nov., a novel Alcaligenes faecalis-like organism isolated from human clinical samples, and reclassification of Alcaligenes denitrificans Ruger and Tan 1983 as Achromobacter denitrificans comb. nov. Int J Syst Evol Microbiol 2003; 53:1825-1831.

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Record number: 772551