sphingobacterium jejuense sphingobacterium jejuense sphingobacterium jejuense is a gram-negative, strictly aerobic and non-motile bacterium from the genus of sphingobacterium which has been isolated from isolated from compost. sphingobacterium jejuense scientific classification domain: bacteria phylum: bacteroidota class: sphingobacteriia order: sphingobacteriales family: sphingobacteriaceae genus: sphingobacterium species: s. jejuense binomial name sphingobacterium jejuensesiddiqi et al. 2016 type strain jcm 30948, kacc 18625, gj30-7