title: [Hydrolytic enzymes and spore formation in Bacillus intermedius].
abstract: The investigation of the activity of extracellular hydrolytic enzymes and sporulation in the bacterium Bacillus intermedius 3-19 showed that the activity of ribonuclease is maximal in the glucose-containing growth medium, in which sporulation is suppressed. At the sporulation stages II-IV, the synthesis of phosphatase was not regulated by the factors that influence this synthesis in the phase of growth retardation. Caseinolytic activity exhibited two peaks. The first peak was observed when thiol-dependent proteinase began accumulating in the medium. The second peak corresponded to the late stages of sporulation, i.e., the stages of spore maturation and the autolysis of sporangium. The regulatory relationship between proteinase synthesis and sporulation and the possible role of extracellular phosphatases and proteinases in the sporulation are discussed.
authors.affiliation: Kazan State University, ul. Kremlevskaya 18, Kazan, 420008 Russia. margarita.sharipova@ksu.ru
authors.forename: M R
authors.initials: MR
authors.lastname: Sharipova
authors.forename: N P
authors.initials: NP
authors.lastname: Balaban
authors.forename: L A
authors.initials: LA
authors.lastname: Gabdrakhmanova
authors.forename: M A
authors.initials: MA
authors.lastname: Shilova
authors.forename: Iu M
authors.initials: IuM
authors.lastname: Kadyrova
authors.forename: G N
authors.initials: GN
authors.lastname: Rudenskaia
authors.forename: I B
authors.initials: IB
authors.lastname: Leshchinskaia
mesh_terms: D000469:Alkaline Phosphatase / Q000378:metabolism*; D001407:Bacillus / Q000201:enzymology / Q000254:growth & development*; D010450:Endopeptidases / Q000378:metabolism*; D006868:Hydrolysis; D012260:Ribonucleases / Q000378:metabolism*; D012697:Serine Endopeptidases / Q000378:metabolism*; D013171:Spores, Bacterial; D013438:Sulfhydryl Compounds / Q000378:metabolism*
chemical_list: D013438:Sulfhydryl Compounds; D012260:Ribonucleases; D000469:Alkaline Phosphatase; D010450:Endopeptidases; D012697:Serine Endopeptidases; C028344:glutamyl endopeptidase