phenylobacterium immobile phenylobacterium immobile phenylobacterium immobile is an aerobic, gram-negative, rod or coccoid-shaped (0.7 to 1.0 by 1.0 to 2.0 μm) bacteria that is non-motile and non-spore-forming. it is notable for degrading chloridazon. its type strain is e (= dsm 1986). phenylobacterium immobile scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: caulobacterales family: caulobacteraceae genus: phenylobacterium species: p. immobile binomial name phenylobacterium immobilelingens et al. 1985