Document Detail

Biostimulation of the autochthonous microbial community for the depletion of polychlorinated biphenyls (PCBs) in contaminated sediments.
MedLine Citation:
PMID:  23208754     Owner:  NLM     Status:  Publisher    
In this study, the effect of the biostimulation of the autochthonous microbial community on the depletion of polychlorinated biphenyls (PCBs) in historically contaminated sediments (6.260 ± 9.3 10(-3) μg PCB/ g dry weight) has been observed. Biostimulation consisted of (1) the amendment of an electron donor to favor the dehalogenation of the high-chlorinated PCBs and (2) the vegetation of sediments with Sparganium sp. plants to promote the oxidation of the low-chlorinated PCBs by rhizodegradation. The effects of the treatments have been analyzed in terms of both PCB depletion and changes of the autochthonous bacterial community structure. The relative abundance of selected bacterial groups with reference to untreated sediments has been evaluated by quantitative real-time PCR. The amendment of acetate determined the enrichment of anaerobic dechlorinators like Dehalococcoides sp. Vegetation with Sparganium sp. plants determined the enrichment of either (3) the dechlorinators, Dehalococcoides and the Chloroflexi o-17/DF-1 strains or (4) the Acidobacteria, β-Proteobacteria, Actinobacteria, α-Proteobacteria, Bacteroidetes, and Firmicutes. The combination of the two biostimulation strategy determined the 91.5 % of abatement of the initial PCB content.
Simona Di Gregorio; Hassan Azaizeh; Roberto Lorenzi
Related Documents :
23542624 - Mountain pine beetles colonizing historical and naive host trees are associated with a ...
6521494 - Ethnomedicinal plants of jaunsar-bawar hills, uttar pradesh, india.
15852494 - Ritual use of plants with possible action on the central nervous system by the kraho in...
24487304 - Investigation of microbial community structure in constructed mangrove microcosms recei...
19747724 - Trace element accumulation in cassiopea sp. (scyphozoa) from urban marine environments ...
17084524 - Using uv pretreatment to enhance biofiltration of mixtures of aromatic vocs.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-4
Journal Detail:
Title:  Environmental science and pollution research international     Volume:  -     ISSN:  1614-7499     ISO Abbreviation:  Environ Sci Pollut Res Int     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9441769     Medline TA:  Environ Sci Pollut Res Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Biology, University of Pisa, Via Luca Ghini 5-56123, Pisa, Italy,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Biliary PAH metabolites, EROD activity and DNA damage in dab (Limanda limanda) from Seine Estuary (F...
Next Document:  A novel "Integrated Biomarker Response" calculation based on reference deviation concept.