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Correlation between bacterial abundance, soil properties and heavy metal contamination in the area of non-ferrous metal processing plant, Southern Bulgaria by Radina Nikolova; Michaella Petkova; Nikolai Dinev; Anelia Kenarova; Silvena Boteva; Dimitar Berov; Galina Radeva is a Environmental Science article available to read on EtoBox.

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In the present study, the correlation between bacterial abundance and soil physicochemical properties along the heavy metal contamination gradient in the area of non-ferrous metal processing plant was assessed. Our results showed that bacterial abundance (number of heterotrophic bacteria and number of 16S rRNA gene copies) decreased with 45–56% (CFU) and 54–87% (16S rRNA gene) along the Zn, Pb and Cd contamination gradient. The total bacterial abundance (16S rRNA gene) increased exponentially in contrast to the abundance of heterotrophic bacteria. The reduction of bacterial abundance in heavily contaminated soil indicated that the soil properties (soil pH, total organic carbon, inorganic ions, soil texture) could modify the effects of heavy metals and the response of microorganisms to that stress in long-term contaminated soils.

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Author

Radina Nikolova; Michaella Petkova; Nikolai Dinev; Anelia Kenarova; Silvena Boteva; Dimitar Berov; Galina Radeva

Publisher

Pensoft Publishers

Published

2022

Language

EN

Field

Environmental Science (Life Sciences)