devosia riboflavina devosia riboflavina devosia riboflavina is a gram-negative soil bacterium. the species pseudomonas riboflavina was transfer to devosia riboflavina devosia riboflavina scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: devosiaceae genus: devosia binomial name devosia riboflavina(ex foster 1944) nakagawa et al. 1996 synonyms pseudomonas riboflavina foster 1944