Ammonia-oxidizing archaea and nitrite-oxidizing nitrospiras in the biofilter of a shrimp recirculating aquaculture system
نویسندگان
چکیده
منابع مشابه
Freshwater Recirculating Aquaculture System Operations Drive Biofilter Bacterial Community Shifts around a Stable Nitrifying Consortium of Ammonia-Oxidizing Archaea and Comammox Nitrospira
Recirculating aquaculture systems (RAS) are unique engineered ecosystems that minimize environmental perturbation by reducing nutrient pollution discharge. RAS typically employ a biofilter to control ammonia levels produced as a byproduct of fish protein catabolism. Nitrosomonas (ammonia-oxidizing), Nitrospira, and Nitrobacter (nitrite-oxidizing) species are thought to be the primary nitrifiers...
متن کاملPhysiology and diversity of ammonia-oxidizing archaea.
The discovery of ammonia-oxidizing archaea (AOA), now generally recognized to exert primary control over ammonia oxidation in terrestrial, marine, and geothermal habitats, necessitates a reassessment of the nitrogen cycle. In particular, the unusually high affinity of marine and terrestrial AOA for ammonia indicates that this group may determine the oxidation state of nitrogen available to asso...
متن کاملInhabitancy of active Nitrosopumilus-like ammonia-oxidizing archaea and Nitrospira nitrite-oxidizing bacteria in the sponge Theonella swinhoei
Nitrification directly contributes to the ammonia removal in sponges, and it plays an indispensable role in sponge-mediated nitrogen cycle. Previous studies have demonstrated genomic evidences of nitrifying lineages in the sponge Theonella swinhoei. However, little is known about the transcriptional activity of nitrifying community in this sponge. In this study, combined DNA- and transcript-bas...
متن کاملGlobal Ecological Pattern of Ammonia-Oxidizing Archaea
BACKGROUND The global distribution of ammonia-oxidizing archaea (AOA), which play a pivotal role in the nitrification process, has been confirmed through numerous ecological studies. Though newly available amoA (ammonia monooxygenase subunit A) gene sequences from new environments are accumulating rapidly in public repositories, a lack of information on the ecological and evolutionary factors s...
متن کاملUnraveling the black box of aquaria biofilter function: FISHing for novel ammonia-oxidizing archaea associations
Nitrification, a biological link between the oxidized and reduced pools of inorganic nitrogen is typically limited by the first step, ammonia oxidation. Often controlled by ammonia oxidizing archaea (AOA), nitrification involves archaea within Thaumarcheota as well as bacteria from Gammaproteobacteria and Betaproteobacteria. This study examines how AOA associate with the ammonia oxidizing bacte...
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ژورنال
عنوان ژورنال: FEMS Microbiology Ecology
سال: 2012
ISSN: 0168-6496
DOI: 10.1111/j.1574-6941.2012.01448.x