[New genus of budding bacteria Angulomicrobium tetraedrale having radially symmetrical cells]

The growth cycle and the ultrathin structure were compared in two strains of polygonal bacteria. Due to the presence of radial symmetry, the type of division, the character of metabolism and physiology in common, the polygonal bacteria are classed as a separate genus, Angulomicrobium nov. gen. It would be too early to divide the genus into species. The diagnosis of the new genus and the species A. tetraedrale nov. gen. nov. sp. is presented.