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Adaptation to mountain γ-background: bacteria speciation
Victoria L Korogodina1, Valeri B Arakelyan2,3, Ashot A Chilingarian4
1Laboratory of Radiation Biology, Joint Institute for Nuclear Research, Dubna, RF.
Purpose:
To study the adaptation of bacteria to the natural γ-background of mountains and anthropogenic emissions from nuclear power plants; to establish the main factors of variability and speciation of bacteria.
Method:
Analysis of materials on the radiation background and its impact on living organisms in the landscape of Armenia, calculation of the absorbed dose by microbes due to rock radiation.
Results:
The review shows the death, reproduction, radioresistance and speciation of bacteria in changing conditions of low variable natural and anthropogenic γ-background.
Conclusion:
We assume that γ-rays from rocks activate cellular epigenetic mechanisms that regulate genome expression, signaling and, ultimately, variability of bacteria. Some of them have already been studied, others require research.
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