sphingobacterium canadense sphingobacterium canadense sphingobacterium canadense is a gram-negative bacterium from the genus of sphingobacterium which has been isolated from corn roots. sphingobacterium canadense scientific classification domain: bacteria phylum: bacteroidota class: sphingobacteriia order: sphingobacteriales family: sphingobacteriaceae genus: sphingobacterium species: s. canadense binomial name sphingobacterium canadensemehnaz et al. 2008 type strain lmg 23727, nccb 100125, cr11