Nitrogen Metabolism Genes from Temperate Marine Sediments.

ABSTRACT: In this study, we analysed metagenomes along with biogeochemical profiles from Skagerrak (SK) and Bothnian Bay (BB) sediments, to trace the prevailing nitrogen pathways. NO₃^- was present in the top 5 cm below the sediment-water interface at both sites. NH₄⁺ increased with depth below 5 cm where it overlapped with the NO₃^- zone. Steady-state modelling of NO₃^- and NH₄⁺ porewater profiles indicates zones of net nitrogen species transformations. Bacterial protease and hydratase genes appeared to make up the bulk of total ammonification genes. Genes involved in ammonia oxidation (amo, hao), denitrification (nir, nor), dissimilatory NO₃^- reduction to NH₄<

SUBMITTER: Reyes C 

PROVIDER: S-EPMC5405112 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature