- A genus of nonmotile, aerobic bacteria (family Moraxellaceae) containing Gram-negative or -variable coccoid or short rods, or cocci, often occurring in pairs. Spores are not produced. These bacteria grow on ordinary media without the addition of serum. They are oxidase-negative and catalase-positive; carbohydrates are oxidized or not attacked at all, and arginine dihydrolase is not produced. They are a frequent cause of nosocomial infections; often resistant to many antibiotics, they can also cause severe primary infections in immunocompromised people. The type species is A. calcoaceticus. SYN: Lingelsheimia.- A. calcoaceticus a species of bacteria originally found in a quinate enrichment; strains of this organism previously identified as Bacterium anitratum were found in the genitourinary tract; it is the type species of the genus A.. SYN: Lingelsheimia anitrata.
* * *Ac·i·net·o·bac·ter (as″ĭ-net″o-bakґtər) [a-1 + cineto- + -bacter] a genus of bacteria of the family Moraxellaceae, consisting of gram-negative, paired coccobacilli that are aerobic, catalase-positive, and oxidase-negative. The organisms are widely distributed in nature and are part of the normal mammalian flora, but can cause severe primary infections in compromised hosts. The type species is A. calcoaceґticus.
Medical dictionary. 2011.