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Effect of mutations rad2 and rad54 in homozygous state on survival, mitotic segregation and crossing-over induced by NMU in yeast was studied. Mutation rad2 did not influence on these effects of NMU. The mutation rad54 increased sensitivity to the lethal effect, the frequencies of NMU-induced segregation and crossing-over were decreased in the strain rad54 rad54. The recombinogenic effect of NMU on yeast was lower than under the action of UV and gamma rays. 相似文献
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Kim AA Pestsov GV Iadgarov KhT Dzhumaniiazova GI Zinov'ev PV Dzhuraeva GT Abdukarimov AA Gins VK 《Prikladnaia biokhimiia i mikrobiologiia》2004,40(1):70-73
Four strains belonging to the genus Bacillus, capable of degrading polychlorinated biphenyls (PCB), were isolated by screening the collection strains of soil bacteria, degrading a organochlorine pesticide, hexachlorocyclohexane (HCCH). A method for production of tritium-labeled PCB was developed. Consumption and degradation of PCB by the soil bacterial strains selected were studied using tritium-labeled PCB and GLC. It was demonstrated that PCB are degradable both in culture media and under in model soil samples. 相似文献
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