brackiella brackiella brackiella is a genus of gram-negative, oxidase- and catalase-positive, rod-shaped bacteria from the family of alcaligenaceae with one known species (brackiella oedipodis). brackiella scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: alcaligenaceae genus: brackiellawillems et al. 2002 type species brackiella oedipodis species b. oedipodis