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[Mineral salt-dependent inhibition of light emission from the luminescent microorganism Escherichia coli Z9051]

https://arctichealth.org/en/permalink/ahliterature46101
Source
Biofizika. 2001 Mar-Apr;46(2):251-5
Publication Type
Article
Author
A N Boiandin
L Iu Popova
Author Affiliation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok, 660036 Russia.
Source
Biofizika. 2001 Mar-Apr;46(2):251-5
Language
Russian
Publication Type
Article
Keywords
Chlorides - pharmacology
Culture Media
Depression, Chemical
English Abstract
Escherichia coli - drug effects - genetics - physiology
Luminescence
Magnesium - pharmacology
Photobacterium - genetics
Salts
Sodium - pharmacology
Sulfates - pharmacology
Abstract
The influence of some mineral salts on the recombinant strain Escherichia coli Z9051 was investigated. It was shown that the composition (NaCl, Na2SO4, MgCl2 and MgSO4) and concentration (5 and 10%) of the salts substantially affect the expression of genes for the luminescence system of light-emitting bacteria cloned in the plasmid under the control of the lac-promoter. In some cases, the luminescence level of the microorganism in the presence of salts was similar to the luminescence level under catabolite repression by glucose, the more strong influence of the salts exceeding the effect of catabolite repression. The possibility of adaptation of the genetically modified microorganism to the salinity factor is discussed.
PubMed ID
11357338 View in PubMed
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