Keywords
bacterial association
bioremediation
heavy metals
resistance
accumulation
Gordonia
Rhodococcus
How to Cite
Abstract
Alkanotrophic actinomycetes Gordonia paraffinivorans IEGM 735 and Rhodococcus ruber IEGM 560 were studied for their resistance to heavy metals (HM). The resistance of free and immobilized cells varied from 0.08 to 1280.00 mM, depending on experimental conditions and the specific HM. Changes in bacterial cells helped reduce the toxic effects of heavy metals. The studied strains did not contain any plasmids. Bioinformatics analysis revealed genetic subsystems influencing resistance to HM. A microbial association immobilized on a solid support was obtained, and this consortium extracted from 80 to 100% of cadmium, chromium, copper, iron, mercury, manganese, magnesium, nickel, lead and zinc ions from model wastewater.
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