کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7081476 1460000 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bacterial communities predominant in the degradation of 13C4-4,5,9,10-pyrene during composting
ترجمه فارسی عنوان
جوامع باکتری در غلبه بر تخریب پتاسیم 13، 4، 5، 9، 10-پین در طول کمپوست
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
An in-vessel composting bioremediation of 13C4-4,5,9,10-pyrene and unlabeled pyrene spiked soil amended with fresh wastes was investigated by DNA-based stable isotope probing (SIP) of active bacteria involved. Highest dissipation of 13C4-pyrene was detected at 55 °C after 42 days composting. The active bacterial communities in the composting changed over time, showing a distinct difference among different stages. α-, β-, γ-Proteobacteria, and Actinobacteria were detected mainly involving in pyrene degradation at 38 °C over 14 days composting. Streptomyces appeared to dominate the pyrene degradation at 55 °C. β- and γ-Proteobacteria and Actinobacteria were the dominant pyrene degraders at 70 °C after 42 days composting and at 38 °C after 60 days composting. The results of this study suggest the pyrene degradation was performed by phylogenetically distinct bacterial guilds from the phyla Actinobacteria and Proteobacteria during in-vessel composition processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 143, September 2013, Pages 608-614
نویسندگان
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