Stochastic processes structure both abundant and rare microbial communities involved in riverine nitrification and denitrification

Using high-throughput sequencing of archaeal <em>amoA</em>, bacterial <em>amoA</em>, <em>nirK</em>, and <em>nirS</em> genes, we investigated the biogeographic patterns and assembly mechanisms of nitrifying and denitrifying communities in the channel sediments, riparian rhizosphere soils, and riparian bulk soils of 30 rivers along the latitudinal gradient in China

我们通过对古菌氨单加氧酶基因（archaeal amoA）、细菌氨单加氧酶基因（bacterial amoA）、亚硝酸还原酶K基因（nirK）与亚硝酸还原酶S基因（nirS）进行高通量测序，探究了中国沿纬度梯度分布的30条河流的河道沉积物、河岸根际土壤及河岸非根际土壤中硝化与反硝化群落的生物地理格局及其群落组装机制。