title: Ultrastructural analysis of sporulation in a conditional serine protease mutant of Bacillus subtilis.
abstract: The morphological characteristics of wild-type Bacillus subtilis and a temperature-sensitive serine protease derivative have been observed during vegetative and sporulation time periods. At 30 C wild-type and mutant cells grow and sporulate identically. At 47.5 C wild-type and mutant cells grow identically, but the mutant cells are blocked at stage 0 or I in the sporulation sequence. Wild-type cells sporulate normally at 47.5 C.
mesh_terms: D001412:Bacillus subtilis / Q000166:cytology* / Q000201:enzymology / Q000254:growth & development; D002455:Cell Division; D002473:Cell Wall; D010450:Endopeptidases / Q000096:biosynthesis*; D008854:Microscopy, Electron; D009154:Mutation; D012694:Serine; D013171:Spores, Bacterial / Q000166:cytology* / Q000254:growth & development; D013194:Staining and Labeling; D013696:Temperature
chemical_list: D012694:Serine; D010450:Endopeptidases