The finding of the amoA gene in archaea populations has raised the prospect of an important role for ammonia-oxidizing archaea (AOA) in nitrification in different ecosystems 1,9. The amoA gene encodes ...

This is a preview. Log in through your library . Abstract This research was conducted to evaluate the use of biological nitrification-denitrification systems as pre-processors for recycling wastewater ...

An experimental simulation of near-future changes in ocean chemistry suggests that aquatic nitrogen cycles could be profoundly disrupted, altering the basic structure of Earth's food webs. Nitrogen is ...

Dormant season inorganic nitrogen (N) leaching varies considerably among forested catchments with similar bedrock, forest cover and deposition history. Recent work has highlighted the importance of ...

Ocean microbes can use urea when ammonium is scarce. This helps them survive in poor waters and reshapes our view of the nitrogen cycle.

Nitrous oxide is a powerful greenhouse gas. Its global warming potential can be up to 300 times that of CO2 over a 100-year period. Globally, more than half of man-made nitrogen oxide emissions come ...

Increasing acidity in the sea's waters may fundamentally change how nitrogen is cycled in them, say marine scientists. Nitrogen is one of the most important nutrients in the oceans. All organisms, ...