Abstract:
The goal of this study was to
test the bio-solubilisation capacity of
Bacillus megaterium strain, isolated
previously by the author in a polluted
medium. The literature showed that Bacillus
megaterium had bio accumulative properties
of some heavy metals (Pb, As, Cd) or of bio
solubilisation of phosphate, silicates, etc.
We have tested the bio solubilisation
capacity of insoluble compounds or partial
soluble compounds of Fe, Mn and Zn,
which have high importance for plant
growth. These elements were added to the
growth medium of microorganisms at
different proportions, which are required by
plant nutrients. In this case study, microbial
metal mobilization from polluted soil by
Bacillus megaterium has resulted in
manganese and iron mobilization of 60-
80%, whereas zinc was mobilized by 20%.
