Results 11 to 20 of about 4,412 (150)
Genomic profiling of Nitrospira species reveals ecological success of comammox Nitrospira
Background The discovery of microorganisms capable of complete ammonia oxidation to nitrate (comammox) has prompted a paradigm shift in our understanding of nitrification, an essential process in N cycling, hitherto considered to require both ammonia ...
Alejandro Palomo +3 more
doaj +3 more sources
Relevance and diversity of Nitrospira populations in biofilters of brackish RAS. [PDF]
Lithoautotrophic nitrite-oxidizing bacterial populations from moving-bed biofilters of brackish recirculation aquaculture systems (RAS; shrimp and barramundi) were tested for their metabolic activity and phylogenetic diversity.
Myriam Kruse +5 more
doaj +4 more sources
Evolutionary Ecology of Natural Comammox Nitrospira Populations [PDF]
Microbes commonly exist in diverse and complex communities where species interact, and their genomic repertoires evolve over time. Our understanding of species interaction and evolution has increased during the last decades, but most studies of ...
Alejandro Palomo +3 more
doaj +3 more sources
Cultivation and Transcriptional Analysis of a Canonical Nitrospira Under Stable Growth Conditions
Nitrite-oxidizing bacteria (NOB) are vital players in the global nitrogen cycle that convert nitrite to nitrate during the second step of nitrification.
Aniela B. Mundinger +4 more
doaj +5 more sources
Mutualistic relationship between Nitrospira and concomitant heterotrophs [PDF]
Summary Nitrifying chemoautotrophs support the growth of diverse concomitant heterotrophs in natural or engineered environments by supplying organic compounds. In this study, we aimed to investigate this microbial association, especially (i) to distinguish whether the relationship between nitrifying ...
Chiho Murakami +5 more
openaire +2 more sources
Existence and distribution of novel phylotypes of Nitrospira in water columnsof the South China Sea
Summary: In the biological nitrogen cycle, nitrite oxidation is performed by nitrite oxidation bacteria, of which Nitrospira is widespread and diverse. Communities of Nitrospira were collected at 25–1500 m depths in the South China Sea.
Wei Sun +5 more
doaj +1 more source
Ammonium Removal in Aquaponics Indicates Participation of Comammox Nitrospira [PDF]
AbstractAquaponic systems are sustainable solutions for food production combining fish growth (aquaculture) and production of vegetables (hydroponic) in one recirculating system. In aquaponics, nitrogen-enriched wastewater from fish in the aquaculture serves as fertilizer for the plants in the hydroponics, while the nitrogen-depleted and detoxified ...
Heise, Julia +3 more
openaire +3 more sources
The oxidation of nitrite to nitrate as the second step of nitrification is vital for the global nitrogen cycle, and the genus Nitrospira is the most widespread nitrite-oxidizing bacteria (NOB) in diverse natural ecosystems.
Wei Sun +5 more
doaj +1 more source
Complete nitrification by Nitrospira bacteria [PDF]
Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be a two-step process catalysed by chemolithoautotrophic microorganisms oxidizing either ammonia or nitrite. No known nitrifier carries out both steps, although complete nitrification should be energetically advantageous. This functional separation has puzzled
Holger Daims +15 more
openaire +3 more sources
Nitrate is mainly converted via aerobic nitrite oxidation during the second step of nitrification, which is catalyzed by nitrite-oxidizing bacteria (NOB) and the recently discovery complete ammonia oxidizers (comammox).
Qiang Zhao +8 more
doaj +1 more source

