xenobiotics petroleum polycyclic aromatic hydrocarbons decomposing molecules fungi play critical role global carbon cycle fungi organisms traditionally recognized fungi oomycetes myxomycetes slime molds often economically socially important cause diseases animals including humans plants ref name de lucca pp ref apart pathogenic fungi many fungal species important controlling plant diseases caused different pathogens example species filamentous fungal genus ''trichoderma'' considered one important biological control agents
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