microbacterium yannicii microbacterium yannicii microbacterium yannicii is a gram-positive, rod-shaped, microaerophilic and non-motile bacterium from the genus microbacterium which has been isolated from roots of the plant arabidopsis thaliana in golm, germany. microbacterium yannicii scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: microbacteriaceae genus: microbacterium species: m. yannicii binomial name microbacterium yanniciikarojet et al. 2012 type strain dsm 23203g72 jcm 18959lmg 25521