作者: Xinda Lu , Peter J. Bottomley , David D. Myrold
DOI: 10.1016/J.SOILBIO.2015.02.034
关键词: Environmental chemistry 、 Nitrification 、 Soil water 、 Alnus rubra 、 Botany 、 Soil pH 、 Alder 、 Ammonia monooxygenase 、 Amendment 、 Biology 、 Archaea
摘要: Ammonia oxidation, the first step of nitrification, is mediated by both ammonia-oxidizing archaea (AOA) and bacteria (AOB); however, the relative contributions of AOA and AOB to soil nitrification are not well understood. In this study we used 1-octyne to discriminate between AOA-and AOB-supported nitrification determined both in soil-water slurries and in unsaturated whole soil at field moisture. Soils were collected from stands of red alder (Alnus rubra Bong.) and Douglas-fir (Pseudotsuga menziesii Mirb. Franco) at three sites (Cascade …