paenochrobactrum pullorum paenochrobactrum pullorum paenochrobactrum pullorum is a gram-negative, oxidase-positive, non-spore-forming, rod-shaped, nonmotile bacterium of the genus paenochrobactrum, which was isolated from faeces of a chicken in germany paenochrobactrum pullorum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: brucellaceae genus: paenochrobactrum species: paenochrobactrum pullorum binomial name p. pullorumkämpfer et al. 2014