Neha Patil (Editor)

Acinetobacter calcoaceticus

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Domain  Bacteria
Order  Pseudomonadales
Genus  Acinetobacter
Rank  Species
Phylum  Proteobacteria
Family  Moraxellaceae
Higher classification  Acinetobacter
Acinetobacter calcoaceticus httpsimagesourassetscomfullcover2000x9786
Scientific name  Acinetobacter calcoaceticus
Similar  Acinetobacter, Bacteria, Acinetobacter baumannii, Morganella morganii, Providencia rettgeri

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. It is part of the normal human intestinal flora. Together with A. baumannii, it is referred to as the A. calcoaceticus-A. baumannii complex, which is relatively simple to identify based on the beforementioned phenotypic characteristics. To identify other Acinetobacter species genotyping is required.



A. calcoaceticus is a soil bacterium. It has been shown to be prevalent in the tiger mosquito Aedes albopictus microflora.


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

Clinical significance

A. calcoaceticus can be pathogenic and cause an opportunistic infection in patients with multiple underlying diseases.


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. Other contributing factors include the cost-effective nature of A. calcoaceticus compared to A. baumannii and the ability of A. calcoaceticus to readily uptake DNA.


Acinetobacter calcoaceticus Wikipedia