sphingomonas dokdonensis sphingomonas dokdonensis sphingomonas dokdonensis is a gram-negative and rod-shaped bacteria from the genus of sphingomonas which has been isolated from soil from the dokdo island in korea. sphingomonas dokdonensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas dokdonensisyoon et al. 2006 type strain cip 108841, ds-4, kctc 12541