Niche Partitioning of the N Cycling Microbial Community of an Offshore Oxygen Deficient Zone.

ABSTRACT: Microbial communities in marine oxygen deficient zones (ODZs) are responsible for up to half of marine N loss through conversion of nutrients to N₂O and N₂. This N loss is accomplished by a consortium of diverse microbes, many of which remain uncultured. Here, we characterize genes for all steps in the anoxic N cycle in metagenomes from the water column and >30 μm particles from the Eastern Tropical North Pacific (ETNP) ODZ. We use an approach that allows for both phylogenetic identification and semi-quantitative assessment of gene abundances from individual organisms, and place these results in context of chemical measurements and rate data from the same location. Denitrification genes were enriched in >30 μm particles, even in the oxycline, while anammox bacteria we

SUBMITTER: Fuchsman CA 

PROVIDER: S-EPMC5723336 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature