janthinobacterium aquaticum janthinobacterium aquaticum janthinobacterium aquaticum is a gram-negative, rod-shaped and motile bacterium from the genus of janthinobacterium. janthinobacterium aquaticum scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: oxalobacteraceae genus: janthinobacterium species: j. aquaticum binomial name janthinobacterium aquaticumlu et al. 2020