title: [Viability of the R, S and M variants of Mycobacterium lacticolum under various preservation conditions].
abstract: The survival rate of Mycobacterium lacticolum and the proportion between its R, S and M variants were studied in the course of 12 months under different conditions of storage (freeze-drying, under vaseline oil, in 0.85% NaCl solution and in distilled water). A high survival rate of the variants was found in cells freeze-dried in a protective medium containing 10% of sucrose +1% of gelatin as well as in a 0.85% solution of NaCl.The survival rate of te variants differed by 2--3 orders of magnitude in cells freeze-dried with sodium glutamate or suspended in distilled water. The proportion between the R, S and M variants in the population noticeable changed after storage under these conditions.
mesh_terms: D005612:Freeze Drying; D014644:Genetic Variation; D009161:Mycobacterium / Q000502:physiology*; D011309:Preservation, Biological / Q000379:methods*; D013997:Time Factors
vernacular_title: Vyzhivaemost' R-, S- i M-variantov Mycobacterium lacticolum pri razlichnykh usloviiakh khraneniia.