xenorhabdus koppenhoeferi xenorhabdus koppenhoeferi xenorhabdus koppenhoeferi is a bacterium from the genus of xenorhabdus which has been isolated from the nematode steinernema scarabaei in the united states. xenorhabdus koppenhoeferi scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: enterobacterales family: morganellaceae genus: xenorhabdus species: x. koppenhoeferi binomial name xenorhabdus koppenhoeferitailliez et al. 2006 type strain cip 109199, dsm 18168, usnj01