massilia niastensis massilia niastensis massilia niastensis is a gram-negative, aerobic, motile, rod -shaped bacterium from the genus massilia and family oxalobacteraceae, which was isolated with massilia niabensis from air samples from suwon in korea. colonies of m. niastensis are ivory-coloured. massilia niastensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: oxalobacteraceae genus: massilia species: m. niastensis binomial name massilia niastensisweon et al. 2009, sp. nov. type strain 5516s-1, cip 110038, dsm 21313, kacc 12599