کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6969211 | 1453017 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of silver-graphene oxide nanocomposites on soil microbial communities
ترجمه فارسی عنوان
اثرات نانوکامپوزیتهای نقره-گرافن اکسید بر جوامع میکروبی خاک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Due to the application of silver-graphene oxide (Ag-GO) in diverse fields, it is important to investigate its potential impacts on the environment including soils. In this study, the response of microbial communities in soils treated with Ag-GO synthesized by glucose reduction was determined by analyzing enzyme activities, biomass, and inorganic N concentrations and by pyrosequencing. In soils treated with 0.1-1â¯mg Ag-GO gâ1 soil, the activities of β-glucosidase, cellobiohydrolase, and xylosidase decreased up to 80% and NO3â concentration decreased up to 82% indicating inhibited nitrification. Within the bacterial community, the relative abundance of Acidobacteria and Cyanobacteria in soils treated with Ag-GO were lower than that in control soil. Meanwhile, the relative abundance of AD3 and Firmicutes tended to increase under Ag-GO treatments. These changes in bacterial community composition reflected lowered activities associated with C and N cycling. On the other hand, microbial biomass showed no distinct change in response to Ag-GO treatment. Our study can serve as important basis in establishing guidelines for regulating the release of nanocomposites such as Ag-GO to the soil environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 346, 15 March 2018, Pages 93-102
Journal: Journal of Hazardous Materials - Volume 346, 15 March 2018, Pages 93-102
نویسندگان
Min-Ji Kim, Daegeun Ko, Kwanyoung Ko, Dawon Kim, Ji-Yeon Lee, Sang Myeong Woo, Woong Kim, Haegeun Chung,