endobacterium cereale endobacterium cereale endobacterium cereale is a species of gram-negative bacteria. endobacterium cereale scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: rhizobiaceae genus: endobacterium species: e. cereale binomial name endobacterium cerealecorrig. menéndez et al. 2021 synonyms endobacterium cerealis menéndez et al. 2021