gracilibacillus ureilyticus gracilibacillus ureilyticus gracilibacillus ureilyticus is a gram-positive, halotolerant, neutrophilic, rod-shaped bacterium. mf38t (=cgmcc 1.7727t =jcm 15711t) is its type strain. gracilibacillus ureilyticus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: gracilibacillus species: g. ureilyticushuo et al. 2010 binomial name gracilibacillus ureilyticus