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Five filamentous fungi used in this study to show the ability of these fungi in biodegradation
of diesel fuel , these fungi were Aspergillus niger, Aspergillus, flavus , Aspergillus versicolor ,
Penicillium funiculosum and Rhizoctonia solani .The results showed that A. niger was resistence
to diesel fuel in 1% , 3% , 4% concentration in solid medium , and the colony diameter of this
fungus reached to 5.8 ,6.4,6.7 cm respectively, but this fungus was sensitive toward diesel fuel
in 5% with 3.7 cm colony diameter . However the results showed that diesel fuel not appear any
effect on the colony of A. flavus ,but the A. versicolor was sensitive in 3%, 4%, 5% concentration
and the colony of this fungus was increased to 7.2 ,7.9 cm with 1%, 2% when compared with
control . Also the results showed that the colony diameter of P. funiculosum decreased in 1% ,
2% , 3% , 4% concentration except that the colony diameter of this fungus was increased in 5%
when compared with control . And in the same time the results showed that R. solani was
sensitive with all concentrations of diesel fuel. The stasitical methods obtained different
significance with fungi and also with 5% concentration when compared with control .
The results showed that all fungi under study were resistence with diesel fuel in all
concentrations in mineral salts medium during determined dry weights of these fungi with
compared control after seven days incubation. The stasitical methods obtained different
significance with different fungi and also with concentrations of diesel fuel.
The results showed that all fungi can degraded diesel fuel to other compounds by usin FTIR
Spectroscopy.
Keywords: Environment, Ecofriendly, Microorganisms, Solid media, Iiquid media