The diversity of the N2O reducers matters for the N2O:N2 denitrification end-product ratio across an annual and a perennial cropping system.
作者： Luiz A. Domeignoz-Horta , Aymé Spor , David Bru , Marie-Christine Breuil , Florian Bizouard
关键词: Greenhouse gas 、 Pyrosequencing 、 Ecology 、 Denitrification 、 Soil microbiology 、 Nitrous-oxide reductase 、 Agroecology 、 Nitrogen cycle 、 Cropping system 、 Biology
摘要: Agriculture is the main source of terrestrial emissions of N2O, a potent greenhouse gas and the main cause of ozone layer depletion. The reduction of N2O into N2 by microorganisms carrying the nitrous oxide reductase gene (nosZ) is the only biological process known to eliminate this greenhouse gas. Recent studies showed that a previously unknown clade of N2O-reducers was related to the capacity of the soil to act as an N2O sink, opening the way for new strategies to mitigate emissions. Here, we investigated whether the agricultural …
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