Accumulation of Heavy Metals on Bacillus cereus and Pseudomonas aeruginosa Strains Isolates from the Van Regional Soils in Turkey

Abstract

This investigation was conducted in order to determine
the overall intracellular accumulation of Co²⁺, Cd²⁺ and Pb²⁺
on Bacillus cereus and Pseudomonas aeruginosa which
isolated from the soil samples collected from Van region.
According to the results of the investigation, intracellular
accumulation was observed to increase in wild type strains
of B. cereus T 124 and P. aeruginosa N 48 through the applications
of Co²⁺, Cd²⁺ and Pb²⁺ (0.25, 0.5, 1, 2 and 4 mM).
However, both the type of bacteria and the effect of various
heavy metals caused different accumulation in two bacteria.
In the three of the heavy metals put into application, B. cereus
T 124 was found to have much more accumulation than P.
aeruginosa N 48. The intracellular accumulation of Cd and
Co metal was observed to be greater in B. cereus T 124 strain
whereas the intracellular accumulation Pb²⁺ metal was seen
to be much greater in P. aeruginosa strain. The highest amount
of accumulation was observed for Pb²⁺.