1. [Microorganisms of Lake Baikal and Lake Nyasa as indicators of anthropogenic influence: prospects of use in biotechnology].
- Author
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Verkhozina VA, Verkhozina EV, Gonchar DA, Dedkov VS, Degtiarev SKh, and Kusner IuS
- Subjects
- Africa South of the Sahara, Anthropology, Bacteria genetics, Bacteria isolation & purification, Biotechnology trends, Deoxyribonucleases, Type II Site-Specific analysis, Electrophoresis, Geologic Sediments microbiology, Mutation, Siberia, Site-Specific DNA-Methyltransferase (Adenine-Specific) analysis, Bacteria enzymology, DNA Restriction Enzymes analysis, Environmental Monitoring, Fresh Water microbiology, Water Microbiology
- Abstract
Restriction endonucleases (RENs) were detected in 650 microbial strains isolated from water columns and bottom sediments of deep rift lakes, Baikal (Russia) and Nyasa (Southeastern Africa). They enzymes included unique (Fan I, Aca I, and Sse 91) and very rare (Bsi I, and Cci N I) species not typical of aquatic ecosystems. Water columns, deep cores, and bottom sediments of pure areas of the lakes contained no microorganisms with new RENs. Thus, inshore areas of Lake Baikal exposed to anthropogenic influence may contain mutant bacterial strains expressing RENs that have not been described previously.
- Published
- 2004