rhodopseudomonas julia rhodopseudomonas julia rhodopseudomonas julia is a bacterium from the genus of rhodopseudomonas which was isolated from a sulfur spring from the golovin volcano on the kunashir island in russia. rhodopseudomonas julia scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: nitrobacteraceae genus: rhodopseudomonas species: r. julia binomial name rhodopseudomonas juliakompantseva 1993 type strain atcc 51105 , dsm 11549, kr-11-67