Adaptive mechanisms of nonspecific resistance to heavy metal ions in alkanotrophic actinobacteria |
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| Authors: | I B Ivshina M S Kuyukina L V Kostina |
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| Institution: | 17344. Institute of Ecology and Genetics of Microorganisms, Russian Academy of Sciences, ul. Goleva 13, Perm, 614081, Russia
27344. Perm State National Research University, ul. Bukireva 15, Perm, 614990, Russia
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| Abstract: | Sensitivity to heavy metal (HM) exposure has been studied in actinobacterial cultures maintained at the Regional Specialized Collection of Alkanotrophic Microorganisms (acronym IEGM; http://www.iegm.ru/iegmcol). Possible mechanisms of nonspecific resistance of actinobacteria to HMs are discussed, which may be due to their ecological preferences, alkanotrophy, and ability to synthesize biosurfactants. Hydrocarbon-oxidizing strains have been selected that are characterized by high emulsifying activity and resistance to increased (>250 mM) HM concentrations. |
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