title: [Relationship between morological variability of Bacillus subtilis R-623 and biosynthesis of hydrolytic enzymes].
abstract: By synthetic sorbent chromatography the influence of Bacillus subtilis R-623 morphology on the qualitative and quantitative composition of alpha-amylase and proteases was studied. It was found that morphological variants of natural variability of Bac. subtilis R-623, alpha-amylase producer, differed in their cultural, morphological and physiological properties as well as in the amount of hydrolytic enzymes synthesized per unit of the cultural medium. Cells of P variant produced the highest quantity of alpha-amylase (314 U/lm) and cells of P and M variants synthesized the greatest amount of proteases (4.3 and 4.0 U/ml, respectively). Quantitative variations of alpha-amylase and proteases were measured in the cultural medium of morphological variants of Bac. subtilis R-623 during cultivation. Qualitative composition of those enzymes was determined when their content in the cultural medium was at the highest level. R variant synthesized alpha-amylase and protease, P and S variants alpha-amylase and two proteases, and P and S variants alpha-amylase and two proteases, and M variant one protease.
mesh_terms: D000681:Amylases / Q000096:biosynthesis*; D001412:Bacillus subtilis / Q000201:enzymology*; D014644:Genetic Variation; D007700:Kinetics; D010447:Peptide Hydrolases / Q000096:biosynthesis*; D013045:Species Specificity; D000516:alpha-Amylases / Q000096:biosynthesis*
chemical_list: D000681:Amylases; D000516:alpha-Amylases; D010447:Peptide Hydrolases
vernacular_title: O sviazi mezhdy morfologicheskoĭ izmenchivost'iu Bacillus subtlis i biosintezom gidroliticheskikh fermentov.