xylanimonas ulmi xylanimonas ulmi xylanimonas ulmi is a gram-positive, aerobic, rod-shaped and non-motile bacterium from the genus xylanimonas which has been isolated from decayed wood of the tree ulmus nigra in salamanca, spain. xylanimonas ulmi scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: promicromonosporaceae genus: xylanimonas species: x. ulmi binomial name xylanimonas ulmi(rivas et al. 2004) heo et al. 2020 type strain cect 5730cect 5731dsm 16932jcm 14284lmg 21721xil12xil08 synonyms xylanibacterium ulmi rivas et al. 2004