Abstract:
:The achievement of successful biostimulation of active microbiomes for the cleanup of a polluted site is strictly dependent on the knowledge of the key microorganisms equipped with the relevant catabolic genes responsible for the degradation process. In this work, we present the characterization of the bacterial community developed in anaerobic microcosms after biostimulation with the electron donor lactate of groundwater polluted with 1,2-dichloroethane (1,2-DCA). Through a multilevel analysis, we have assessed (i) the structural analysis of the bacterial community; (ii) the identification of putative dehalorespiring bacteria; (iii) the characterization of functional genes encoding for putative 1,2-DCA reductive dehalogenases (RDs). Following the biostimulation treatment, the structure of the bacterial community underwent a notable change of the main phylotypes, with the enrichment of representatives of the order Clostridiales. Through PCR targeting conserved regions within known RD genes, four novel variants of RDs previously associated with the reductive dechlorination of 1,2-DCA were identified in the metagenome of the Clostridiales-dominated bacterial community.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Merlino G,Balloi A,Marzorati M,Mapelli F,Rizzi A,Lavazza D,de Ferra F,Carpani G,Daffonchio Ddoi
10.1155/2015/242856subject
Has Abstractpub_date
2015-01-01 00:00:00pages
242856eissn
2314-6133issn
2314-6141journal_volume
2015pub_type
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