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Streptomycin and N-Methyl-N’-nitro-N-nitroso-guanidine inhibit incorporation of14C-precursors of macromolecule synthesis inEuglena gracillis

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Abstract

Streptomycin and N-methyl-N’-nitro-N-nitrosoguanidine (MNNG) cause a 100% hereditary bleaching ofEuglena gracilis. In spite of the outcomes being the same, the corresponding mechanisms differ. By investigating the incorporation of the14C-labelled precursors of macromolecule synthesis we showed streptomycin to inhibit the synthesis of nucleic acids and proteins to the same extent (56%), whereas in the case of MNNG a 66% inhibition of nucleic acid synthesis and a 24% one of protein synthesis were observed.

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Mačor, M. Streptomycin and N-Methyl-N’-nitro-N-nitroso-guanidine inhibit incorporation of14C-precursors of macromolecule synthesis inEuglena gracillis . Folia Microbiol 33, 466–473 (1988). https://doi.org/10.1007/BF02925773

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