brevundimonas aveniformis brevundimonas aveniformis brevundimonas aveniformis is a gram-negative, rod-like, stalk-producing bacterium belonging to the genus brevundimonas. brevundimonas aveniformis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: caulobacterales family: caulobacteraceae genus: brevundimonas species: b. aveniformis binomial name brevundimonas aveniformis