NDLI: Comparative Metagenomic Analysis of Soil Microbial Communities across Three Hexachlorocyclohexane Contamination Levels

Content Provider	PubMed Central
Author	Sangwan, Naseer Lata, Pushp Dwivedi, Vatsala Singh, Amit Niharika, Neha Kaur, Jasvinder Anand, Shailly Malhotra, Jaya Jindal, Swati Nigam, Aeshna Lal, Devi Dua, Ankita Saxena, Anjali Garg, Nidhi Verma, Mansi Kaur, Jaspreet Mukherjee, Udita Gilbert, Jack A. Dowd, Scot E. Raman, Rajagopal Khurana, Paramjit Khurana, Jitendra P. Lal, Rup
Editor	Brayton, Kelly A.
Copyright Year	2012
Abstract	This paper presents the characterization of the microbial community responsible for the in-situ bioremediation of hexachlorocyclohexane (HCH). Microbial community structure and function was analyzed using 16S rRNA amplicon and shotgun metagenomic sequencing methods for three sets of soil samples. The three samples were collected from a HCH-dumpsite (450 mg HCH/g soil) and comprised of a HCH/soil ratio of 0.45, 0.0007, and 0.00003, respectively. Certain bacterial; (Chromohalobacter, Marinimicrobium, Idiomarina, Salinosphaera, Halomonas, Sphingopyxis, Novosphingobium, Sphingomonas and Pseudomonas), archaeal; (Halobacterium, Haloarcula and Halorhabdus) and fungal (Fusarium) genera were found to be more abundant in the soil sample from the HCH-dumpsite. Consistent with the phylogenetic shift, the dumpsite also exhibited a relatively higher abundance of genes coding for chemotaxis/motility, chloroaromatic and HCH degradation (lin genes). Reassembly of a draft pangenome of Chromohalobacter salaxigenes sp. (∼8X coverage) and 3 plasmids (pISP3, pISP4 and pLB1; 13X coverage) containing lin genes/clusters also provides an evidence for the horizontal transfer of HCH catabolism genes.
Related Links	http://dx.doi.org/10.1371/journal.pone.0046219
Starting Page	46219
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	9
Volume Number	7
Language	English
Publisher	Public Library of Science
Publisher Date	2012-09-28
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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