Results 211 to 220 of about 19,407 (254)
Niche adaptation of particle-associated ammonia-oxidizing archaea sustains nitrification under marine deoxygenation. [PDF]
Front MicrobiolLi L, Zhao D, Du R, Tang K, Zhang Y.
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Environmental Science and Pollution Research, 2018
In this study, two laboratory nitrifying reactors (NRI and NRII), which were seeded by sludge from different sources and operated under different operating conditions, were found to possess distinct dominant ammonia-oxidizing microorganisms. Ammonia-oxidizing archaeal (AOA) amoA genes outnumbered ammonia-oxidizing bacterial (AOB) amoA genes in reactor ...
Papitchaya, Srithep +2 more
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In this study, two laboratory nitrifying reactors (NRI and NRII), which were seeded by sludge from different sources and operated under different operating conditions, were found to possess distinct dominant ammonia-oxidizing microorganisms. Ammonia-oxidizing archaeal (AOA) amoA genes outnumbered ammonia-oxidizing bacterial (AOB) amoA genes in reactor ...
Papitchaya, Srithep +2 more
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2023
Ammonia oxidising bacteria (AOB) and archaea are ubiquitous microorganisms, but their abundance and diversity vary widely across environments and play a crucial role in many ecosystems and aquatic ecosystems in particular. However, characterization of AOB communities require genomic methods as they are difficult to isolate from samples.
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Ammonia oxidising bacteria (AOB) and archaea are ubiquitous microorganisms, but their abundance and diversity vary widely across environments and play a crucial role in many ecosystems and aquatic ecosystems in particular. However, characterization of AOB communities require genomic methods as they are difficult to isolate from samples.
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Ammonia-Oxidizing Bacteria in Wastewater
2011Ammonia-oxidizing bacteria (AOB) have a key role in the conversion of ammonia to nitrite in wastewater treatment plants (WWTPs). The characterization of AOB communities in such systems requires the use of genomic methods as AOB are difficult to isolate from environmental samples.
Bellucci, Micol, Curtis, Thomas P
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Genetic Transformation of Ammonia-Oxidizing Bacteria
2011The study of traits of ammonia-oxidizing bacteria (AOB) by genetic transformation is an approach that is facilitated by the availability of AOB genome sequences. To transform an AOB, a vector construct is introduced into the cells by electroporation or conjugation to effect the inactivation, complementation, or expression of a selected gene.
Luis A, Sayavedra-Soto, Lisa Y, Stein
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c-Cytochromes of the ammonia-oxidizing chemolithoautotrophic bacteria
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1991The major enzymes associated with the oxidation of ammonia by chemolithoauthotrophic bacteria are studied, including some cytochromes c , are described and details of their properties are given.
A B, Hooper +3 more
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Ammonia Oxidizing Bacteria in Wastewater Treatment
2023Wastewater pollutants such as trace organic chemicals and pharmaceutical compounds pose a major threat to aquatic environments and human health. There is a critical need to develop potential strategies that aim at enhancing the metabolism and/or cometabolism of these compounds.
Pranjal P. Das +2 more
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Ecological characteristics of anaerobic ammonia oxidizing bacteria
Applied Microbiology and Biotechnology, 2013Anaerobic ammonium oxidation (anammox) is the microbial conversion of ammonium and nitrite to dinitrogen gas. The functional microbes of anammox reaction are anammox bacteria, which were discovered in a wastewater treatment system for nitrogen removal.
Shuang, Ding +5 more
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Ammonia-Oxidizing Bacteria: A Model for Molecular Microbial Ecology
Annual Review of Microbiology, 2001▪ Abstract  The eutrophication of many ecosystems in recent decades has led to an increased interest in the ecology of nitrogen transformation. Chemolitho-autotrophic ammonia-oxidizing bacteria are responsible for the rate-limiting step of nitrification in a wide variety of environments, making them important in the global cycling of nitrogen.
Kowalchuk, G.A., Stephen, J.R.
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In situ Identification of Ammonia-oxidizing Bacteria
Systematic and Applied Microbiology, 1995Summary A 16S rRNA-targeted oligonucleotide probe (NEU) specific for some representatives of the lithoautotrophic ammonia-oxidizing bacteria was developed based on comparative sequence analysis. Whole cell hybridization of target cells in combination with digital microscopy was used to determine the optimal hybridization stringency.
Michael Wagner +2 more
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