Article · Wikipedia archive · Last revised Jul 3, 2026

Acinetobacter calcoaceticus

Acinetobacter calcoaceticus is a bacterial species of the genus Acinetobacter. It is a nonmotile, Gram-negative coccobacillus. It grows under aerobic conditions, is catalase positive and oxidase negative. A. calcoaceticus is a part of the A. calcoaceticus–A. baumannii complex together with Acinetobacter baumannii, Acinetobacter nosocomialis, Acinetobacter pittii and Acinetobacter seifertii.

Last revised
Jul 3, 2026
Read time
≈ 1 min
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328 w
Citations
4
Source
Acinetobacter calcoaceticus
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Pseudomonadales
Family: Moraxellaceae
Genus: Acinetobacter
Species:
A. calcoaceticus
Binomial name
Acinetobacter calcoaceticus
"Micrococcus calco-aceticus" Beijerinck 1911
Synonyms

Neisseria winogradskyi
Moraxella calcoacetica
Micrococcus calcoaceticus
Herellea vaginicola

Acinetobacter calcoaceticus is a bacterial species of the genus Acinetobacter.1 It is a nonmotile, Gram-negative coccobacillus. It grows under aerobic conditions, is catalase positive and oxidase negative. A. calcoaceticus is a part of the A. calcoaceticusA. baumannii complex together with Acinetobacter baumannii, Acinetobacter nosocomialis, Acinetobacter pittii and Acinetobacter seifertii.2

Habitat

A. calcoaceticus is a soil bacterium. It has been shown to be in the human body's in moist areas like the mouth, groin, respiratory tract, and gastrointestinal tract. It is also present in Tiger mosquito (Aedes albopictus) microflora.3

Metabolism

Phloroglucinol carboxylic acid is a degradation product excreted by A. calcoaceticus grown on (+)-catechin as the sole source of carbon.4

Uses

A. calcoaceticus can be used as an alternative to A. baumannii in the laboratory setting. The interchangeability of the two species stems from their extreme degree of similarity and ability to form the A. calcoaceticus-A. baumannii complex.

References

References

  1. "Genus: Acinetobacter".
  2. Nemec, Alexandr; Krizova, Lenka; Maixnerova, Martina; Sedo, Ondrej; Brisse, Sylvain; Higgins, Paul G. (2015). "Acinetobacter seifertii sp. nov., a member of the Acinetobacter calcoaceticusAcinetobacter baumannii complex isolated from human clinical specimens". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 3): 934–942. doi:10.1099/ijs.0.000043. PMID 25563912.
  3. Minard, Guillaume; Florence Hélène Tran; Fara Nantenaina Raharimalala; Eléonore Hellard; Pierre Ravelonandro; Patrick Mavingui; Claire Valiente Moro (2013). "Prevalence, genomic and metabolic profiles of Acinetobacter and Asaia associated with field-caught Aedes albopictus from Madagascar". FEMS Microbiology Ecology. 83 (1): 63–73. doi:10.1111/j.1574-6941.2012.01455.x. ISSN 1574-6941. PMID 22808994.
  4. M. Arunachalam; N. Mohan; R. Sugadev; P. Chellappan; A. Mahadevan (11 June 2003). "Degradation of (+)-catechin by Acinetobacter calcoaceticus MTC 127". Biochimica et Biophysica Acta (BBA) - General Subjects. 1621 (3): 261–265. doi:10.1016/S0304-4165(03)00077-1. PMID 12787923.
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