We examined the propeptin production in 10 species of mesophilic Microbispora. Three strains which have closely DNA homology to Microbispora rosea, M. rosea (IFO 14044), M. rosea subsp. nonnitritogenes (IFO 14045) and M. indica (IFO 14879) produced propeptin, other 7 strains did not. The results suggested some relationship between secondary metabolite production and taxonomy.
