Synthesis of exocellular metalloprotease and cellular and exocellular proteins in the sporogenic strain Bacillus megaterium J-27 and asporogenic strain KM 1 was investigated. Both organisms excrete the enzyme into the medium during growth and during the stationary phase. In the asporogenic strain the excretion decreases at the end of the exponential phase. In the sporogenic strain it continues during the transition to the stationary phase at the original rate and proteolytic activity in the medium increases two to three times during 2 h after the end of the exponential phase. Both organisms synthesize relatively more exocellular proteins during the exponential phase than during the stationary phase. The proportion of exocellular protein synthesized during the exponential phase does not exceed 3 % of total proteins, during the stationary phase this proportion usually decreases to less than 1 %.

Zobrazit více v PubMed

Folia Microbiol (Praha). 1966;11(2):89-94 PubMed

Folia Microbiol (Praha). 1966;11(2):82-8 PubMed

Bacteriol Rev. 1977 Sep;41(3):711-53 PubMed

J Mol Biol. 1975 Aug 5;96(2):345-52 PubMed

Ann Inst Pasteur (Paris). 1969 Nov;117(5):631-6 PubMed

Acta Biol Med Ger. 1977;36(11-12):1515-22 PubMed

J Gen Microbiol. 1978 Jul;107(1):189-92 PubMed

Ann Inst Pasteur (Paris). 1960 Feb;98 :282-90 PubMed

Z Allg Mikrobiol. 1976;16(6):475-7 PubMed

Folia Microbiol (Praha). 1977;22(1):1-11 PubMed

Biochimie. 1975;57(1):9-16 PubMed

J Theor Biol. 1975 Jul;52(1):143-8 PubMed

Bacteriol Rev. 1969 Mar;33(1):48-71 PubMed