TSUKAMURELLA TYROSINOSOLVENS SP-NOV

Chemotaxonomic and 16S ribosomal DNA sequence analyses of four bacteri al isolates from blood cultures from patients with cardiac pacemaker i mplants and sputa of patients with chronic lung infections clearly dem onstrated that these bacteria belong to the genus Tsukamurella. DNA-DN A hybridization data, as well as the physiological characteristics of the isolates, indicate that they are closely related and belong to a s ingle species that differs from previously described members of the ge nus Tsukamurella. The name Tsukamurella tyrosinosolvens sp. nov. is pr oposed for these isolates, and the new species is represented by strai n IMMIB D-1397(T) (= DSM 44234(T)). Strain IMMIB D-1397(T) exhibits 53 .4, 53.5, and 54.7% DNA-DNA relatedness to Tsukamurella paurometabola DSM 20162(T), Tsukamurella inchonensis DSM 44067(T), and Tsukamurella pulmonis DSM 44142(T), respectively.