sphingobacterium arenae sphingobacterium arenae sphingobacterium arenae is a gram-negative, non-spore-forming, short rod-shaped and non-motile bacterium from the genus of sphingobacterium which has been isolated from sandy soil in xinjiang in china. sphingobacterium arenae scientific classification domain: bacteria phylum: bacteroidota class: sphingobacteriia order: sphingobacteriales family: sphingobacteriaceae genus: sphingobacterium species: s. arenae binomial name sphingobacterium arenaejiang et al. 2014