Lentinus (Panus) tigrinus augmentation of a historically contaminated soil: matrix decontamination and structure and function of the resident bacterial community
Author(s)
Federici, Ermanno
Giubilei, Maria Angela
Cajthaml, Tomáš
Petruccioli, Maurizio
D'Annibale, Alessandro
Date Issued
2011
Type
Article
Abstract
The ability of Lentinus tigrinus to grow and to degrade persistent aromatic hydrocarbons in aged contaminated
soil was assessed in this study. L. tigrinus extensively colonized the soil; its degradation
activity after 60 d incubation at 28 ◦C, however, was mostly limited to dichloroaniline isomers, polychlorinated
benzenes and diphenyl ether while the fungus was unable to deplete 9,10-anthracenedione
and 7-H-benz[DE]anthracene-7-one which were the major soil contaminants. Although clean-up levels
were limited, both density of cultivable heterotrophic bacteria and richness of the resident bacterial
community in L. tigrinus microcosms (LtM) increased over time to a significantly larger extent than the
respective amended incubation controls (1.9×109 CFU g−1 vs. 1.0×109 CFU g−1 and 37 vs. 16, respectively).
Naphthalene- and catechol 2,3-dioxygenase gene copy numbers, however, decreased over time
at a higher rate in LtMthan in incubation controls likely due to a higher stimulation on heterotrophs than
xenobiotics-degrading community members.
Additional information
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Citation
Federici E., et al. 2010. Lentinus (Panus) tigrinus augmentation of a historically contaminated soil: matrix decontamination and structure and function of the resident bacterial community. "Journal of Hazardous Materials" 186: 1263-1270.
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