acinetobacter gyllenbergii acinetobacter gyllenbergii acinetobacter gyllenbergii is a gram-negative, oxidase-negative, catalase-positive, strictly aerobic nonmotile bacterium from the genus acinetobacter isolated from human clinical specimens. it is named in honour of finnish bacteriologist and taxonomist helge g. gyllenberg. acinetobacter gyllenbergii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: acinetobacter species: a. gyllenbergii binomial name acinetobacter gyllenbergiinemec et al., 2009 type strain ccm 7267, ccug 51248, lmg 25325, niph 2150, ruh 422, strain 1271