comammox
Research Article | Applied and Environmental ScienceComponent Microenvironments and System Biogeography Structure Microorganism Distributions in Recirculating Aquaculture and Aquaponic SystemsRecirculating aquaculture systems (RAS) are agroecosystems for intensive on-land cultivation of products of fisheries. Practitioners that incorporate edible plant production into RAS refer to these facilities as aquaponic systems (AP). RAS have the potential to offset declining production levels of wild global fisheries while reducing waste and product distance to market, but system optimization is needed to reduce costs. Both RAS and...
Observation | Applied and Environmental ScienceMetagenomic Evidence for the Presence of Comammox Nitrospira-Like Bacteria in a Drinking Water SystemNitrification plays an important role in regulating the concentrations of inorganic nitrogen species in a range of environments, from drinking water and wastewater treatment plants to the oceans. Until recently, aerobic nitrification was considered to be a two-step process involving ammonia-oxidizing bacteria or archaea and nitrite-oxidizing bacteria. This process requires close cooperation between these two functional guilds for...