PMID: 2511813Aug 1, 1989Paper

Antibacterial spectrum of lisosubtilin G10X

Antibiotiki i khimioterapii︠a︡ = Antibiotics and chemoterapy [sic]
G A BiziuliavichiusO V Kislukhina

Abstract

Data on the antibacterial spectrum of lysosubtilin G10X, a preparation of lytic enzymes from Bacillus subtilis SK-52 are presented. Lysosubtilin was active against grampositive and gramnegative pathogenic bacteria. When it was used as a substrate of live lyophilized microbial cells the highest lysis levels were observed in B. brevis, B. cereus, B. pumilis, B. subtilis and S. faecalis. Preincubation of the substrate in acid media mainly increased the levels of the lysis by enzyme preparation. Sometimes the increase was very high (B. sphaericus, B. subtilis 720, E. coli K12 and MRE-600). Such a preincubation provided cell lysis in some strains not liable to the effect of lysosubtilin (B. cereus 1312, C. renale, M. luteus, S. aureus KP, 800, 805 and 126001, S. pyogenes 291). An increase in the lysosubtilin concentration in the reaction mixture in the majority of the cases did not provide favourable results. However, some strains resistant to the preparation at a concentration of 1000 units/ml were lysed with its 10 times higher doses. An increase in the lysis level was also achieved with increasing the time of the incubation with the enzyme preparation. Proceeding from the preparation antibacterial spectrum it is possible to recom...Continue Reading

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