--Bioremediation of PAHs from oil-contaminated soils was investigated. Bacillus
licheniformis and Bacillus mojavensis, were inoculated in rhizospheric soil with
Festuca aroundiacea in a greenhouse study. The concentration of PAHs in the rhizosphere
of soil inoculated with both bacteria were significantly (p < 0.05) reduced compared
to the non-inoculated soil. PAH concentrations in shoots were largely independent
of those in soil, roots, or rhizosphere soil. In the soil inoculated with both bacteria, the
concentration of PAHs in roots and shoots of the plant was less than for other treatments.
Results showed that the plant-promoted biodegradation was the predominant
contribution to remediation of soil PAHs.
