sphingomonas insulae sphingomonas insulae sphingomonas insulae is a gram-negative, rod-shaped and motile bacteria from the genus of sphingomonas which has been isolated from soil in dokdo in korea. sphingomonas insulae scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas insulaeyoon et al. 2008 type strain cip 110394, ds-28, dsm 21792, jcm 14603, kctc 12872