The marine nitrogen cycle is a complex web of microbially mediated reactions that control
the inventory, distribution, and speciation of nitrogen in the marine environment. Because …

Microorganisms oxidize organic nitrogen to nitrate in a series of steps. Nitrite, an
intermediate product, accumulates at the base of the sunlit layer in the subtropical ocean …

The microbial nitrogen (N) cycle involves a variety of redox processes that control the
availability and speciation of N in the environment and that are involved with the production …

In this study, we develop a mechanistic understanding of how temperature affects growth
and photosynthesis in 10 geographically and physiologically diverse strains of …

Background Sponges have long been known to be ecologically important members of the
benthic fauna on coral reefs. Recently, it has been shown that sponges are also important …

The reactive nitrogen (N) emitted from continents significantly perturbs the pristine N cycle
around the land-ocean boundary resulting in eutrophication and hypoxia. As nutrients are …

Ammonia oxidation rates and ammonia‐oxidizer community structure were examined in a
depth profile (20–2000 m) at the Bermuda Atlantic Time‐Series Study site in December …

Nitrite (NO 2−) is a substrate for both oxidative and reductive microbial metabolism. NO 2−
accumulates at the base of the euphotic zone in oxygenated, stratified open-ocean water …

As a key intermediate in the nitrogen cycle, nitrite is involved in multiple biological pathways
that regulate the distribution and availability of nitrogen in the ocean. In the oligotrophic …

Nitrification is a series of processes that oxidizes ammonia to nitrate, which contributes to
hypoxia development in coastal oceans, especially in eutrophicated regions. The nitrification …