Factor of salinity and adaptive capacity of recombinant strains of Escherichia coli and Bacillus subtilis |
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| Authors: | Boiandin A N Lobova T I Krylova T Iu Kargatova T V Popova L Iu Pechurkin N S |
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| Institution: | Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russia. |
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| Abstract: | Effect of different concentrations of salts on natural and recombinant strains of Bacillus subtilis and Escherichia coli was studied. The recombinant strain of B. subtilis was found to be more osmotolerant than the wild-type strain of this bacterium, whereas the opposite situation was observed for the recombinant and wild-type strains of E. coli. Some salts exerted a bacteriostatic effect on E. coli and B. subtilis. The adaptive capacity of recombinant strains depended on the number of plasmid copies in the cells. The introduction of recombinant bacteria into model ecosystems resulted in the generation of their variants with increased osmotolerance. |
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