Abstract:
Bacillus megaterium is a
microorganism from soil, located mainly in
rhizosphere, with capacities of
biosolubilization of insoluble
micronutrients, which are unavailable for
plant nutrition. The biosolubilization of
iron, manganese, zinc and cooper
compounds, which are insoluble forms for
plant nutrition, depended on the amount of
microorganisms in soil. At the end of the
experiment, the accumulation capacity of
cell biomass was tested for Bacillus
megaterium strain, which was isolated from
forest soil, for decreasing the high degree of
soil pollution. The quantity of accumulated
biomass by Bacillus megaterium also
depended on the level of microorganism
adaptation to the presence of these metals in
environment. Thus, it was demonstrated that
an isolated strain from the metal polluted
soil, in comparison with Bacillus
megaterium isolated from a forest soil,
would accumulate a significant superior
biomass quantity.
