Almost complete 16S rRNA sequences from seven Thermomonospora strains,
Thermomonospora curvata, Thermomonospora formosensis, Thermomonospora
fusca, Thermomonospora mesophila, Thermomonospora chromogena, Thermom
onospora alba and Thermomonospora mesouviformis (a synonym of Thermomo
nospora alba) were determined and subjected to phylogenetic analysis t
ogether with the sequences from all the representative members of the
suborder Streptosporangineae. On the basis of phylogenetic, chemotaxon
omic and phenotypic evidence, the transfer is proposed of Thermomonosp
ora formosensis to the genus Actinomadura as Actinomadura formosensis
comb. nov., Thermomonospora mesophila to the genus Microbispora as Mic
robispora mesophila comb. nov., and Thermomonospora fusca and Thermomo
nospora alba to a new genus, Thermobifida gen. nov., which belongs to
the family Nocardiopsaceae, as Thermobifida fusca comb. nov. and Therm
obifida alba comb. nov. Thermobifida alba is designated the type speci
es of the genus. The transfer is also proposed of all species of the M
icrotetraspora pusilla group, which were transferred from Actinomadura
, to a new genus, Nonomuria gen. nov., as Nonomuria africana comb, nov
., Nonomuria angiospora comb. nov., Nonomuria fastidiosa comb. nov., N
onomuria ferruginea comb. nov., Nonomuria flexuosa comb. nov., Nonomur
ia helvata comb. nov., Nonomuria polychroma comb. nov., Nonomuria pusi
lla comb. nov., Nonomuria recticatena comb. nov., Nonomuria roseola co
mb. nov., Nonomuria roseoviolacea comb. nov., Nonomuria rubra comb. no
v., Nonomuria salmonea comb. nov., Nonomuria spiralis comb. nov. and N
onomuria turkmeniaca comb. nov. Nonomuria pusilla is designated the ty
pe species of the genus.