pseudoduganella violaceinigra pseudoduganella violaceinigra pseudoduganella violaceinigra is a mesophilic bacterium of the genus duganella in the oxalobacteraceae family which was isolated from forest soil in yunnan province in china. pseudoduganella violaceinigra scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: oxalobacteraceae genus: pseudoduganella species: p. violaceinigra binomial name pseudoduganella violaceinigrakampfer, et al. 2012 type strain ccug 50881, cip 108077, dsm 15887, kctc 12193, yim 31327 synonyms duganella violaceusniger, duganella violaceinigra