DNA-DNA Reassociation and Chemotaxonomic Studies on Actinomadura, Microbispora, Microtetraspora, Micropolyspora and Nocardiopsis

24 species of 5 genera of sporoactinomycetes, Actinomadura, Microbispora, Microtetraspora, Micropolyspora, and Nocardiopsis were analyzed with regard to DNA homologies, DNA G+C content and a variety of chemotaxonomic characters. In contrast to their present classification, certain species of Microbispora, Microtetraspora, Micropolyspora and Nocardiopsis are members of the genus Actinomadura which itself embraces two rather unrelated subgroups....