The 16S rRNA sequences of aerobic LL-diaminopimelic acid-containing coryneform bacteria were compared, and the sequence of Nocardioides fastidiosa exhibited a high level of similarity to the sequence of Aeromicrobium erythreum but not to the sequences of the other species of the genus Nocardioides. Furthermore, analyses of menaquinone systems and cellular fatty acids revealed that N. fastidiosa was similar to A. erythreum but differed from the other Nocardioides species. On the basis of chemotaxonomic data and DNA-DNA hybridization and comparative 16S rRNA results, we propose that N. fastidiosa should be transferred to the genus Aeromicrobium as Aeromicrobium fastidiosum comb. nov. (type strain, IFO 14897).
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Copyright 1994 International Union of Microbiological Societies
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