sphingomonas hankookensis sphingomonas hankookensis sphingomonas hankookensis is a gram-negative, rod-shaped and non-motile bacteria from the genus of sphingomonas which has been isolated from wastewater from a wastewater treatment plant in taejon in korea. sphingomonas hankookensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas hankookensisyoon et al. 2009 type strain ccug 57509, kctc 22579, odn7