کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9437637 | 1299845 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reductive dechlorination of β-hexachlorocyclohexane (β-HCH) by a Dehalobacter species in coculture with a Sedimentibacter sp.
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بوم شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Reductive dechlorination of β-hexachlorocyclohexane (β-HCH) by a Dehalobacter species in coculture with a Sedimentibacter sp. Reductive dechlorination of β-hexachlorocyclohexane (β-HCH) by a Dehalobacter species in coculture with a Sedimentibacter sp.](/preview/png/9437637.png)
چکیده انگلیسی
An anaerobic coculture was enriched from a hexachlorocyclohexane (HCH) polluted soil. The coculture reductively dechlorinates the β-HCH isomer to benzene and chlorobenzene in a ratio of 0.5-2 depending on the amount of β-HCH degraded. The culture grows with H2 as electron donor and β-HCH as electron acceptor, indicating that dechlorination is a respiratory process. Phylogenetic analysis indicated that the coculture consists of two bacteria that are both related to gram-positive bacteria with a low G + C content of the DNA. One bacterium was identified as a Dehalobacter sp. This bacterium is responsible for the dechlorination. The other bacterium was isolated and characterized as being a Sedimentibacter sp. This strain is not able to dechlorinate β-HCH. The Dehalobacter sp. requires the presence of Sedimentibacter for growth and dechlorination, but the function of the latter bacterium is not clear. This is the first report on the metabolic dechlorination of β-HCH by a defined anaerobic bacterial culture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEMS Microbiology Ecology - Volume 54, Issue 1, 1 September 2005, Pages 87-95
Journal: FEMS Microbiology Ecology - Volume 54, Issue 1, 1 September 2005, Pages 87-95
نویسندگان
Wim van Doesburg, Miriam H.A. van Eekert, Peter J.M. Middeldorp, Melike Balk, Gosse Schraa, Alfons J.M. Stams,