Results 31 to 40 of about 6,819 (210)

Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria

open access: yesJournal of Applied Sciences and Environmental Management, 2018
This research studied the effects of pesticide application on the growth of soil nitrifying bacteria. Nitrosomonas sp. was isolated from the Soil samples gotten from five different locations within the University of Benin, Benin City and cultured using ...
U Udochukwu   +2 more
doaj   +1 more source

Efficient management of the nitritation-anammox microbiome through intermittent aeration: absence of the NOB guild and expansion and diversity of the NOx reducing guild suggests a highly reticulated nitrogen cycle

open access: yesEnvironmental Microbiome, 2022
Obtaining efficient autotrophic ammonia removal (aka partial nitritation-anammox, or PNA) requires a balanced microbiome with abundant aerobic and anaerobic ammonia oxidizing bacteria and scarce nitrite oxidizing bacteria.
Alejandro Palomo   +8 more
doaj   +1 more source

Photoinactivation of Ammonia Oxidation in Nitrosomonas [PDF]

open access: yesJournal of Bacteriology, 1974
Photoinactivation of ammonia oxidation in cells of Nitrosomonas was shown to follow first-order kinetics with a rate constant proportional to incident light intensity. The action spectrum for photoinactivation consisted of a broad peak in the ultraviolet range, where both hydroxylamine and ammonia oxidation were ...
A B, Hooper, K R, Terry
openaire   +2 more sources

Dinitrogen oxide production by a mixed culture of nitrifying bacteria during ammonia shock loading and aeration failure [PDF]

open access: yes, 2002
A number of experiments was conducted in order to establish if N2O in the exhaust gas from an aerobic consortium of nitrifiers could be used as an indicator for monitoring the nitrification process.
Stephenson, T.   +6 more
core   +1 more source

Nitrosomonas eutropha: A Study of the Effects of Nitrosomonas on Pathogenic Bacterium and the Effects of Current Hygiene Habits on the Colonization of Nitrosomonas Within Our Normal Flora [PDF]

open access: yes, 2016
Nitrosomonas eutropha is a motile, gram-negative, bacillus that metabolizes ammonia as its energy source. Nitrosomonas eutropha was isolated from a probiotic skin product and used to determine how it would function in the normal flora of the ...
Kramer, Shelli
core   +1 more source

Nitrogen removal by autotrophic ammonium oxidizing bacteria enrichment under anaerobic conditions [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2008
Sludge from an anoxic tank at the centralized wastewater treatment plant, Nong Khaem, Bangkok, Thailand, was inoculatedin an anaerobic sequencing batch reactor (ASBR). The optimal compositions and operating conditions of the stock of autotrophic ammonium
Pongsak (Lek) Noophan   +3 more
doaj  

Comparison of the microbiomes of two drinking water distribution systems—with and without residual chloramine disinfection

open access: yesMicrobiome, 2019
Background Residual disinfection is often used to suppress biological growth in drinking water distribution systems (DWDSs), but not without undesirable side effects.
Michael B. Waak   +3 more
doaj   +1 more source

Disturbance-based management of ecosystem services and disservices in partial nitritation-anammox biofilms

open access: yesnpj Biofilms and Microbiomes, 2022
The resistance and resilience provided by functional redundancy, a common feature of microbial communities, is not always advantageous. An example is nitrite oxidation in partial nitritation-anammox (PNA) reactors designed for nitrogen removal in ...
Carolina Suarez   +6 more
doaj   +1 more source

Growth ofNitrosomonas europaeaon hydroxylamine [PDF]

open access: yesFEMS Microbiology Letters, 1995
Hydroxylamine is an intermediate in the oxidation of ammonia to nitrite, but until now it has not been possible to grow Nitrosomonas europaea on hydroxylamine. This study demonstrates that cells of N. europaea are capable of growing mixotrophically on ammonia and hydroxylamine. The molar growth yield on hydroxylamine (4.74 g mol−1 at a growth rate of 0.
De Bruijn, P. (author)   +4 more
openaire   +2 more sources

The effect of hydrology on the distribution of ammonia-oxidizing betaproteobacteria in impounded black mangroves (Avicennia germinans)

open access: yesFrontiers in Microbiology, 2012
The distribution of species of aerobic chemolitho-autotrophic microorganisms such as the ammonia-oxidizing bacteria will be governed by pH, salinity and temperature as well as by the availability of oxygen, ammonia, carbon dioxide and other inorganic ...
Hendrikus J. eLaanbroek   +4 more
doaj   +1 more source

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