Zobrazeno 1 - 10
of 70
pro vyhledávání: '"B P, Matseliukh"'
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 75(5)
Seventeen spontaneous and induced mutants, that acquired a new characteristic--the synthesis of beta-carotene and lycopene, were obtained from strain Streptomyces globisporus 1912. It was found that spontaneous mutants inherited more stably the acqui
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 74(5)
The paper deals with dependence of survival of Crt(+)- and Crt- mutants of Streptomyces globisporus 1912 in conditions of oxidizing stress caused by hydrogen peroxide on the level of lycopene and beta-carotene biosynthesis. Pink mutants 4Lcp, RVLcp a
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 73(6)
Eight highly productive UV-induced mutants of Streptomyces globisporus 1912 with high biosynthesis of landomycin E were isolated, their isolation frequency being 2 x 10(-3). Mutants 1-1, 1-4-1, 1-1y, 1-2y, 4-1, 1-2 produced 175-187.5 mg of landomycin
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 73(5)
The screening of the positive regulators of landomycin E biosynthesis has been conducted among exogenous metabolites of the museum and freshly isolated Streptomycetes strains by means of cosynthesis test using mutant strain Streptomyces globisporus 1
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 73(1)
Thirteen antibiotics of red, rose, yellow and violet color, which are synthesized by the soil Streptomycetes on the complete corn-bean medium have been isolated and purified by means of thin layer chromatography. Antibiotic activity of the obtained c
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 72(6)
The biosynthesis of lycopene by the strain Streptomyces globisporus 4Lcp has been studied at synthetic media with different sources of carbon and nitrogen. It has been shown that the highest yield of lycopene (2.0-3.0 microg/l), in case of cultivatio
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 72(5)
Screening of plasmid DNA was carried out among 94 streptomycetes cultures which were isolated from the samples of Ukrainian soils with different anthropogenic contamination. Seventeen streptomycetes strains containing plasmid DNA were found. It is es
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 71(1)
Three streptomycete strains (Streptomnyces sp. 14, Streptomnzyces sp. 34, Streptomyces sp. 48)--producers of isoschisomers of restrictase Asull (Ssp34, Ssp48, Ssp14) were studied for the presence of synthesis of those site-specific endonucleases afte
Autor:
S L, Holembiovs'ka, B P, Matseliukh
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 70(6)
Spontaneous and induced variability of carotenoid biosynthesis was studied in seven strains of Streptomyces globisporus 1912 with the model of direct and reverse mutations. The appearance of spontaneous pigmentless (Crt) colonies in mutants 4 Crt and
Publikováno v:
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993). 70(5)
The lethal action of ultraviolet rays has been studied on colored 4Crt, 4Lcp, 6Crt, 7Crt and white 4W, 4W1, 7Y, 7W2, 7W6 mutants of S. globisporus 1912. It was shown, that all studied mutants are more resistant to action of ultraviolet light in compa