Reclassification of Roseomonas fauriae Rihs et al. 1998 as a later heterotypic synonym of Azospirillum brasilense Tarrand et al. 1979.

The relatedness of Roseomonas fauriae and Azospirillum brasilense was investigated using phenotypic methods and DNA-DNA hybridization. Conventional biochemical tests did not differentiate between the two taxa. DNA-DNA hybridization experiments revealed high values for relatedness between the type strains of these species and suggest that these two taxa constitute a single species. Strains previously identified as R. fauriae should be reclassified as A. brasilense, with the name Roseomonas fauriae as a later heterotypic synonym of Azospirillum brasilense.