Genome sequences of two dehalogenation specialists – Dehalococcoides mccartyi strains BTF08 and DCMB5 enriched from the highly polluted Bitterfeld region. Issue 2 (9th May 2013)

• Record Type: Journal Article
• Authors: Pöritz, Marlén; Goris, Tobias; Wubet, Tesfaye; Tarkka, Mika T.; Buscot, François; Nijenhuis, Ivonne; Lechner, Ute; Adrian, Lorenz
• Is Part Of: FEMS microbiology letters. Volume 343:Issue 2(2013:Jun.)
• Page Start: 101
• Page End: 104
• Publication Date: 2013-05-09
• Subjects: Microbiology -- Periodicals; 579
• DOI: 10.1111/1574-6968.12160
• Languages: English
• ISSNs: 0378-1097

Abstract

<abstract abstract-type="main" id="fml12160-abs-0001"> <title>Abstract</title> <p>The genomes of two novel <italic>Dehalococcoides mccartyi</italic> strains, DCMB5 and BTF08, enriched from the heavily organohalide‐contaminated megasite around Bitterfeld (Germany), were fully sequenced and annotated. Although overall similar, the genome sequences of the two strains reveal remarkable differences in their genetic content, reflecting a specific adaptation to the contaminants at the field sites from which they were enriched. The genome of strain BTF08 encodes for 20 reductive dehalogenases, and is the first example of a genome containing all three enzymes that are necessary to couple the complete reductive dechlorination of PCE to ethene to growth. The genes encoding trichloroethene and vinyl chloride reductive dehalogenases, <italic>tceA</italic> and <italic>vcrA</italic>, are located within mobile genetic elements, suggesting their recent horizontal acquisition. The genome of strain DCMB5 contains 23 reductive dehalogenase genes, including <italic>cbrA</italic>, which encodes a chlorobenzene reductive dehalogenase, and a gene cluster encoding arsenic resistance proteins, both corresponding to typical pollutants at its isolation site.</p> </abstract>