acinetobacter colistiniresistens acinetobacter colistiniresistens acinetobacter colistiniresistens is a bacterium from the genus of acinetobacter which has been isolated from human infections. acinetobacter colistiniresistens scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: acinetobacter species: a. colistiniresistens binomial name acinetobacter colistiniresistensnemec et al., 2017