کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4485117 1316941 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isolation and identification of a novel microcystin-degrading bacterium from a biological sand filter
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Isolation and identification of a novel microcystin-degrading bacterium from a biological sand filter
چکیده انگلیسی

A novel bacterium capable of degrading two microcystin analogues, microcystin-LR and -LA (MCLR and MCLA), was isolated from a biological sand filter which was previously shown to effectively remove these toxins from source waters. Based on phylogenetic analysis of the 16S rRNA gene sequence, the isolated organism, LH21, most likely belonged to the genus Sphingopyxis and of the previously cultured species clustered with Sphingopyxis witflariensis. Using polymerase chain reaction (PCR), isolate LH21 was shown to contain homologues to each of the four genes, mlrA, mlrB, mlrC and mlrD previously associated with the degradation of MCLR by Sphingomonas sp. ACM-3962. Isolate LH21 was able to effectively degrade MCLR and MCLA in batch experiments under environmentally relevant conditions, with complete removal observed within 5 h after re-exposure of the toxins.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Research - Volume 41, Issue 20, December 2007, Pages 4685–4695
نویسندگان
, , , ,