Publications

Endophytic Burkholderia fungorum DBT1 can improve phytoremediation efficiency of polycyclic aromatic hydrocarbons  (2013)

Authors:
Andreolli, Marco; Lampis, Silvia; Marika, Poli; G., Gullner; Borbala, Biró; Vallini, Giovanni
Title:
Endophytic Burkholderia fungorum DBT1 can improve phytoremediation efficiency of polycyclic aromatic hydrocarbons
Year:
2013
Type of item:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Language:
Inglese
Format:
A Stampa
Referee:
Name of journal:
CHEMOSPHERE
ISSN of journal:
0045-6535
N° Volume:
92
Number or Folder:
6
Page numbers:
688-694
Keyword:
Burkholderia fungorum DBT1; BACTERIAL ENDOPHYTES; POLYCYCLIC AROMATIC HYDROCARBONS; HYBRID POPLAR; MICROBIALLY-ASSISTED PHYTOREMEDIATION
Short description of contents:
Burkholderia fungorum DBT1 is a bacterial strain isolated from an oil refinery discharge and capable of transforming dibenzothiophene, phenanthrene, naphthalene, and fluorene. In order to evaluate the influence of a policyclic aromatic hydrocarbon (PAH)-transforming bacterial strain on the phytoremediation of organic contaminants, B. fungorum DBT1 was inoculated into hybrid poplar (Populus deltoides×Populus nigra). The poplar plants were grown for 18-wk with or without naphthalene, phenanthrene, fluorene and dibenzothiophene (488mgkg-1 soil each) in non-sterile sand-peat substrate. Evidences were gained that B. fungorum DBT1 was present in high concentration in poplar root tissues (2.9-9.5×103CFUg-1), while the strain was not detected in stem, leaves and rhizosphere. When poplar was planted in uncontaminated substrate, the infection caused negative effects on biomass index, leaves and stem dry weight, without showing however any disease symptoms. On the other hand, plants inoculated with the strain DBT1 resulted in better tolerance against the toxic effects of PAHs, in terms of root dry weight. Although the presence of plants acted as the main effective treatment for PAH dissipation (82-87%), the inoculum with DBT1 strain lead to the highest PAH abatement (up to 99%). In the present study, an environmental isolate with proper metabolic features was demonstrated to be possibly suitable as a poplar endophyte for improving microbe-assisted phytoremediation in PAH contaminated matrices.
Product ID:
77563
Handle IRIS:
11562/605559
Deposited On:
August 3, 2013
Last Modified:
October 19, 2024
Bibliographic citation:
Andreolli, Marco; Lampis, Silvia; Marika, Poli; G., Gullner; Borbala, Biró; Vallini, Giovanni, Endophytic Burkholderia fungorum DBT1 can improve phytoremediation efficiency of polycyclic aromatic hydrocarbons «CHEMOSPHERE» , vol. 92 , n. 62013pp. 688-694

Consulta la scheda completa presente nel repository istituzionale della Ricerca di Ateneo IRIS

<<back

Activities

Research facilities

Share