کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8895547 1630328 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Bacterial-Feeding Nematodes and Glucose on Phenanthrene Removal by Pseudomonas putida
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش خاک شناسی
پیش نمایش صفحه اول مقاله
Effects of Bacterial-Feeding Nematodes and Glucose on Phenanthrene Removal by Pseudomonas putida
چکیده انگلیسی
Bacterial-feeding nematodes can promote the bacterial activity through feeding. Bacterial abundance and their activity affect the degradation of polycyclic aromatic hydrocarbons (PAH) such as phenanthrene. The effects of bacterial-feeding nematodes, bacteria, and their interactions on the degradation of phenanthrene with or without glucose were studied through a microcosm experiment. The results showed that up to 57.0% of phenanthrene in mineral medium contaminated with phenanthrene was degraded in the control with bacteria alone and bacteria with the presence of nematodes and/or glucose increased the degradation of phenanthrene by 25.6% to 36.6%. Although both nematode and bacteria abundance decreased gradually, catechol 2,3-dioxygenase (C23O) activity increased during the incubation period. Compared with bacteria alone, the presence of nematodes significantly increased C23O activity as well as the abundance of bacteria; this effect was more pronounced when glucose was present. The results imply that nematodes might promote the removal of phenanthrene from medium by stimulating bacteria and C23O activities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pedosphere - Volume 27, Issue 1, February 2017, Pages 165-171
نویسندگان
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