sphingomonas yunnanensis sphingomonas yunnanensis sphingomonas yunnanensis is a species of bacteria. its cells are short-rod-shaped and motile. its type strain is yim 003t (=cctcc ab 204064t=kctc 12346t). sphingomonas yunnanensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas yunnanensiszhang et al. 2005