Results 31 to 40 of about 4,412 (150)
Nitrite-oxidizing bacteria belonging to the genus Nitrospira mediate a key step in nitrification and play important roles in the biogeochemical nitrogen cycle and wastewater treatment.
Christopher E. Lawson +10 more
doaj +3 more sources
Complete ammonia oxidizer (Comammox) can complete the whole nitrification process independently, whose niche differentiation is important guarantee for its survival and ecological function.
Jiahui Zhang +8 more
doaj +1 more source
Hot spring distribution and survival mechanisms of thermophilic comammox Nitrospira
Abstract The recent discovery of Nitrospira species capable of complete ammonia oxidation (comammox) in non-marine natural and engineered ecosystems under mesothermal conditions has changed our understanding of microbial nitrification.
Yan Zhang +13 more
openaire +7 more sources
Nitrification is the two-step aerobic oxidation of ammonia to nitrate via nitrite in the nitrogen-cycle on earth. However, very limited information is available on how fertilizer regimes affect the distribution of nitrite oxidizers, which are involved in
Shun Han +7 more
doaj +1 more source
Functionally relevant diversity of closely related Nitrospira in activated sludge [PDF]
Abstract Nitrospira are chemolithoautotrophic nitrite-oxidizing bacteria that catalyze the second step of nitrification in most oxic habitats and are important for excess nitrogen removal from sewage in wastewater treatment plants (WWTPs).
Christiane Gruber-Dorninger +7 more
openaire +2 more sources
A novel marine nitrite-oxidizing Nitrospira species from Dutch coastal North Sea water
Marine microorganisms are important for the global nitrogen cycle, but marine nitrifiers, especially aerobic nitrite-oxidizers, remain largely unexplored.
Suzanne Caroline Marianne Haaijer +7 more
doaj +1 more source
Nitrospira bacteria in paddy soil reduced by biochar application [PDF]
AbstractBiochar application can depress nitrification in paddy soils, but the microbiological mechanisms involved in this process are not clearly understood. This study was conducted to test the hypothesis that biochar may affect nitrification bacteria in paddy soils.
Xiaohong Yin +5 more
openaire +2 more sources
Freshwater mussel assemblages of the Upper Mississippi River (UMR) sequester tons of ammonia- and urea-based biodeposits each day and aerate sediment through burrowing activities, thus creating a unique niche for nitrogen (N) cycling microorganisms. This
Ellen M. Black, Craig L. Just
doaj +1 more source
Effect of the dilution rate on microbial competition: r-strategist can win over k-strategist at low substrate concentration. [PDF]
The conditions present in both in vitro and in vivo ecosystems determine the microbial population harbouring it. One commonly accepted theory is that a species with a high substrate affinity and low growth rate (k-strategist) will win the competition ...
Mari-K H Winkler +4 more
doaj +1 more source
Autotrophic nitrification is regulated by canonical ammonia-oxidizing archaea (AOA) and bacteria (AOB) and nitrite-oxidizing bacteria (NOB). To date, most studies have focused on the role of canonical ammonia oxidizers in nitrification while neglecting ...
Ping Sun +5 more
doaj +1 more source

