Results 11 to 20 of about 4,455 (169)
Genomic profiling of Nitrospira species reveals ecological success of comammox Nitrospira
Microbiome, 2022 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
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Relevance and diversity of Nitrospira populations in biofilters of brackish RAS. [PDF]
PLoS ONE, 2013 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
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Evolutionary Ecology of Natural Comammox Nitrospira Populations [PDF]
mSystems, 2022 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
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Mutualistic relationship between Nitrospira and concomitant heterotrophs [PDF]
Environmental Microbiology Reports, 2021 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
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Ammonium Removal in Aquaponics Indicates Participation of Comammox Nitrospira [PDF]
Current Microbiology, 2021 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
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Frontiers in Marine Science, 2022 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
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Complete nitrification by Nitrospira bacteria [PDF]
Nature, 2015 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
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Frontiers in Marine Science, 2023 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
Frontiers in Microbiology, 2022 The recent discovery of comammox Nitrospira, a complete ammonia oxidizer, capable of completing the nitrification on their own has presented tremendous challenges to our understanding of the nitrification process.
Pei-Chun (Lisa) Hsu +19 more
doaj +1 more source
Identification and Genomic Characterization of Two Previously Unknown Magnetotactic Nitrospirae [PDF]
Frontiers in Microbiology, 2021 Magnetotactic bacteria (MTB) are a group of microbes that biomineralize membrane-bound, nanosized magnetite (Fe3O4), and/or greigite (Fe3S4) crystals in intracellular magnetic organelle magnetosomes. MTB belonging to the Nitrospirae phylum can form up to several hundreds of Fe3O4 magnetosome crystals and dozens of sulfur globules in a single cell ...
Wensi Zhang +11 more
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