کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2026516 | 1070032 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ammonium oxidation coupled to dissimilatory reduction of iron under anaerobic conditions in wetland soils
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش خاک شناسی
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چکیده انگلیسی
In exploring the dynamics of iron and nitrogen cycling in sediments from riparian forests we have observed a redox reaction that has not been previously described. During incubations of soil slurries under strictly anaerobic conditions, we repeatedly measured an unexpected production of both nitrite (NO2−) and ferrous iron [Fe(II)]. Using this indirect evidence we hypothesize that, under anaerobic conditions, there is a biological process that uses ferric iron [Fe(III)] as an electron acceptor while oxidizing ammonium (NH4+) to NO2− for energy production. This NH4+ oxidation under iron reducing anaerobic conditions is thermodynamically feasible and is potentially a critical component of the N cycle in saturated sediments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Biology and Biochemistry - Volume 37, Issue 12, December 2005, Pages 2323–2328
Journal: Soil Biology and Biochemistry - Volume 37, Issue 12, December 2005, Pages 2323–2328
نویسندگان
Jean-Christophe Clément, Junu Shrestha, Joan G. Ehrenfeld, Peter R. Jaffé,