title: [Relationship between culture and conditions, the qualitative composition of a culture of Bacillus brevis and its formation of gramicidin C].
abstract: Qualitative composition of the population of Bacillus brevis was found to depend on growth conditions. Under optimum aeration conditions for growth of the culture and biosynthesis of gramicidin C, the population was polymorphous and contained cells and spores of different age. No spores and prospores were found in the culture in conditions of weak and strong aeration. The population consisted only of young, intensively coloured cells with homogeneous or weakly differentiated content in conditions of strong aeration. Cells with the differentiated protoplasm containing large, distinctly seen vacuoles were found in conditions of weak aeration. Gramicidin C was synthesized by young cells with basophilic homogeneous or weakly differentiated protoplasm.
mesh_terms: D001407:Bacillus / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism; D006096:Gramicidin / Q000096:biosynthesis*; D010101:Oxygen Consumption
chemical_list: D006096:Gramicidin
vernacular_title: Kachestvennyĭ sostav populiatsii Bacillus brevis i obrazovanie eiu gramitsidine C v zavisimosti ot usloviĭ kul'tivirovaniia