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

Using high-throughput sequencing of archaeal amoA, bacterial amoA, nirK, and nirS 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